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1,802.0036 | Metastable rocksalt ZnO is $p$-type dopable | Despite decades of efforts, achieving $p$-type conductivity in the wide band
gap ZnO in its ground-state wurtzite structure continues to be a challenge.
Here we detail how $p$-type ZnO can be realized in the metastable,
high-pressure rocksalt phase (also wide-gap) with Li as an external dopant.
Using modern first-principles defect theory, we predict Li to dope the rocksalt
phase $p$-type by preferentially substituting for Zn and introducing shallow
acceptor levels. Formation of compensating donors like interstitial Li and/or
hydrogen, ubiqutous in the wurtzite phase, is inhibited by the close-packed
nature of the rocksalt structure, which also exhibits relatively high absolute
valence band edge that promotes low hole effective mass and hole
delocalization. Resulting concentrations of free holes are predicted to exceed
$\sim10^{19}$ cm$^{-3}$ under O-rich synthesis conditions while under O-poor
conditions the system remains $n$-type dopable. In addition to revealing
compelling opportunities offered by the metastable rocksalt structure in
realizing a long-sought $p$-type ZnO our results present polymorphism as a
promising route to overcoming strong doping asymmetry of wide-band gap oxides.
| cond-mat.mtrl-sci | despite decades of efforts achieving ptype conductivity in the wide band gap zno in its groundstate wurtzite structure continues to be a challenge here we detail how ptype zno can be realized in the metastable highpressure rocksalt phase also widegap with li as an external dopant using modern firstprinciples defect theory we predict li to dope the rocksalt phase ptype by preferentially substituting for zn and introducing shallow acceptor levels formation of compensating donors like interstitial li andor hydrogen ubiqutous in the wurtzite phase is inhibited by the closepacked nature of the rocksalt structure which also exhibits relatively high absolute valence band edge that promotes low hole effective mass and hole delocalization resulting concentrations of free holes are predicted to exceed sim1019 cm3 under orich synthesis conditions while under opoor conditions the system remains ntype dopable in addition to revealing compelling opportunities offered by the metastable rocksalt structure in realizing a longsought ptype zno our results present polymorphism as a promising route to overcoming strong doping asymmetry of wideband gap oxides | [['despite', 'decades', 'of', 'efforts', 'achieving', 'ptype', 'conductivity', 'in', 'the', 'wide', 'band', 'gap', 'zno', 'in', 'its', 'groundstate', 'wurtzite', 'structure', 'continues', 'to', 'be', 'a', 'challenge', 'here', 'we', 'detail', 'how', 'ptype', 'zno', 'can', 'be', 'realized', 'in', 'the', 'metastable', 'highpressure', 'rocksalt', 'phase', 'also', 'widegap', 'with', 'li', 'as', 'an', 'external', 'dopant', 'using', 'modern', 'firstprinciples', 'defect', 'theory', 'we', 'predict', 'li', 'to', 'dope', 'the', 'rocksalt', 'phase', 'ptype', 'by', 'preferentially', 'substituting', 'for', 'zn', 'and', 'introducing', 'shallow', 'acceptor', 'levels', 'formation', 'of', 'compensating', 'donors', 'like', 'interstitial', 'li', 'andor', 'hydrogen', 'ubiqutous', 'in', 'the', 'wurtzite', 'phase', 'is', 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1,802.00361 | Tailoring $T_c$ by symmetry principles: The concept of Superconducting
Fitness | We propose a generalization of the concept of superconducting fitness, which
allows us to make statements analogous to Anderson's theorems concerning the
stability of different superconducting states. This concept can be applied to
complex materials with several orbital, layer, sublattice or valley degrees of
freedom. The superconducting fitness parameters $F_A(\bf{k})$ and $F_C(\bf{k})$
give a direct measure of the robustness of the weak coupling instability and of
the presence of detrimental terms in the Hamiltonian, respectively. These two
parameters can be employed as a guide to engineer normal state Hamiltonians in
order to favour or suppress superconducting order parameters with different
symmetries and topological properties. To illustrate the applicability and
power of this concept we study three cases: the non-centrosymmetric heavy
fermion $\text{CePt}_3\text{Si}$, the hole doped iron pnictide
$\text{KFe}_2\text{As}_2$ and the doped topological insulator
$\text{Cu}_x\text{Bi}_2\text{Se}_3$.
| cond-mat.supr-con | we propose a generalization of the concept of superconducting fitness which allows us to make statements analogous to andersons theorems concerning the stability of different superconducting states this concept can be applied to complex materials with several orbital layer sublattice or valley degrees of freedom the superconducting fitness parameters f_abfk and f_cbfk give a direct measure of the robustness of the weak coupling instability and of the presence of detrimental terms in the hamiltonian respectively these two parameters can be employed as a guide to engineer normal state hamiltonians in order to favour or suppress superconducting order parameters with different symmetries and topological properties to illustrate the applicability and power of this concept we study three cases the noncentrosymmetric heavy fermion textcept_3textsi the hole doped iron pnictide textkfe_2textas_2 and the doped topological insulator textcu_xtextbi_2textse_3 | [['we', 'propose', 'a', 'generalization', 'of', 'the', 'concept', 'of', 'superconducting', 'fitness', 'which', 'allows', 'us', 'to', 'make', 'statements', 'analogous', 'to', 'andersons', 'theorems', 'concerning', 'the', 'stability', 'of', 'different', 'superconducting', 'states', 'this', 'concept', 'can', 'be', 'applied', 'to', 'complex', 'materials', 'with', 'several', 'orbital', 'layer', 'sublattice', 'or', 'valley', 'degrees', 'of', 'freedom', 'the', 'superconducting', 'fitness', 'parameters', 'f_abfk', 'and', 'f_cbfk', 'give', 'a', 'direct', 'measure', 'of', 'the', 'robustness', 'of', 'the', 'weak', 'coupling', 'instability', 'and', 'of', 'the', 'presence', 'of', 'detrimental', 'terms', 'in', 'the', 'hamiltonian', 'respectively', 'these', 'two', 'parameters', 'can', 'be', 'employed', 'as', 'a', 'guide', 'to', 'engineer', 'normal', 'state', 'hamiltonians', 'in', 'order', 'to', 'favour', 'or', 'suppress', 'superconducting', 'order', 'parameters', 'with', 'different', 'symmetries', 'and', 'topological', 'properties', 'to', 'illustrate', 'the', 'applicability', 'and', 'power', 'of', 'this', 'concept', 'we', 'study', 'three', 'cases', 'the', 'noncentrosymmetric', 'heavy', 'fermion', 'textcept_3textsi', 'the', 'hole', 'doped', 'iron', 'pnictide', 'textkfe_2textas_2', 'and', 'the', 'doped', 'topological', 'insulator', 'textcu_xtextbi_2textse_3']] | [-0.15743499661867436, 0.18359089565391723, -0.03380038053370439, 0.05060771449218289, -0.10045619850369314, -0.15205472183700364, 0.09291992045831508, 0.32373596765100954, -0.24504974904255225, -0.2982204756842783, 0.020800270804633886, -0.28462170514540047, -0.11559662395873321, 0.14995848384972374, -0.025305018115502138, 0.04463316887581291, -0.03866412462666631, -0.03214256893306111, -0.13559079381565636, -0.24604414639851221, 0.338171437719407, 0.0039894180605188016, 0.313662067356591, 0.07549345955664578, 0.03046775674805618, -0.017155736301524133, 0.11478957255155994, 0.024445167440983195, -0.15389806792283287, 0.1047566517663654, 0.2742203031165095, -0.016397683379741814, 0.2318112770596949, -0.4344522748787243, -0.20866121262482082, 0.08354306977528791, 0.11346348007926, 0.14545986820997384, -0.023764623766048598, -0.29653689925415583, 0.07334982870110812, -0.18254313440635228, -0.1850118548466036, -0.14082723742333025, -0.0828125038721527, 0.004201956041372166, -0.24790205663929765, 0.037943179034986174, 0.0903226818334168, 0.051744791149506524, -0.04483320891472081, -0.1077346816802254, -0.07040068736084952, 0.07128900461292897, 0.07061171201953234, -0.00874045101316789, 0.11319768927485431, -0.08624561834149062, -0.142742479689276, 0.3608410156260316, -0.020912522319346094, -0.16905384343833876, 0.20508443731993722, -0.11883894900003304, -0.08160659751783196, 0.0764824226176223, 0.15513388738036155, 0.09365094616794242, -0.12182484981962122, 0.04410750556584949, 5.316479991261776e-05, 0.1733097393083601, 0.029948997390098295, 0.1588840111087148, 0.22332359455490056, 0.15593252281273284, 0.06529388653311449, 0.18241602107345198, -0.08737210365943611, -0.07489207768096373, -0.24570857834500762, -0.20570795979852285, -0.17044659887189761, 0.060163312858472075, -0.08998748155930886, -0.19138822733926086, 0.4910667252010451, 0.1955686095663203, 0.1697340173360247, -0.06054465948299576, 0.2175591995814242, 0.09335476036022346, 0.07101980721434721, -0.016472236514807892, 0.24565222995499006, 0.19121349749800104, 0.0690895140529252, -0.2895841449149884, 0.0647887063678354, 0.05908276667066205] |
1,802.00362 | When Scientists Become Social Scientists: How Citizen Science Projects
Learn About Volunteers | Online citizen science projects involve recruitment of volunteers to assist
researchers with the creation, curation, and analysis of large datasets.
Enhancing the quality of these data products is a fundamental concern for teams
running citizen science projects. Decisions about a project's design and
operations have a critical effect both on whether the project recruits and
retains enough volunteers, and on the quality of volunteers' work. The
processes by which the team running a project learn about their volunteers play
a critical role in these decisions. Improving these processes will enhance
decision-making, resulting in better quality datasets, and more successful
outcomes for citizen science projects. This paper presents a qualitative case
study, involving interviews and long-term observation, of how the team running
Galaxy Zoo, a major citizen science project in astronomy, came to know their
volunteers and how this knowledge shaped their decision-making processes. This
paper presents three instances that played significant roles in shaping Galaxy
Zoo team members' understandings of volunteers. Team members integrated
heterogeneous sources of information to derive new insights into the
volunteers. Project metrics and formal studies of volunteers combined with
tacit understandings gained through on- and offline interactions with
volunteers. This paper presents a number of recommendations for practice. These
recommendations include strategies for improving how citizen science project
team members learn about volunteers, and how teams can more effectively
circulate among themselves what they learn.
| astro-ph.IM astro-ph.GA cs.CY | online citizen science projects involve recruitment of volunteers to assist researchers with the creation curation and analysis of large datasets enhancing the quality of these data products is a fundamental concern for teams running citizen science projects decisions about a projects design and operations have a critical effect both on whether the project recruits and retains enough volunteers and on the quality of volunteers work the processes by which the team running a project learn about their volunteers play a critical role in these decisions improving these processes will enhance decisionmaking resulting in better quality datasets and more successful outcomes for citizen science projects this paper presents a qualitative case study involving interviews and longterm observation of how the team running galaxy zoo a major citizen science project in astronomy came to know their volunteers and how this knowledge shaped their decisionmaking processes 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1,802.00363 | Bistable topological insulator with exciton-polaritons | Functionality of many nonlinear and quantum optical devices relies on the
effect of optical bistability. Using the microcavity exciton-polaritons in a
honeycomb arrangement of microcavity pillars, we report the resonance response
and bistability of the topological edge states. A balance between the pump,
loss and nonlinearity ensures a broad range of dynamical stability and controls
the distribution of power between counter-propagating states on the opposite
edges of the honeycomb lattice stripe. Tuning energy and polarization of the
pump photons, while keeping their momentum constant, we demonstrate control of
the propagation direction of the dominant edge state. Our results facilitate
development of new applications of topological photonics in practical devices.
| physics.optics cond-mat.mtrl-sci nlin.PS | functionality of many nonlinear and quantum optical devices relies on the effect of optical bistability using the microcavity excitonpolaritons in a honeycomb arrangement of microcavity pillars we report the resonance response and bistability of the topological edge states a balance between the pump loss and nonlinearity ensures a broad range of dynamical stability and controls the distribution of power between counterpropagating states on the opposite edges of the honeycomb lattice stripe tuning energy and polarization of the pump photons while keeping their momentum constant we demonstrate control of the propagation direction of the dominant edge state our results facilitate development of new applications of topological photonics in practical devices | [['functionality', 'of', 'many', 'nonlinear', 'and', 'quantum', 'optical', 'devices', 'relies', 'on', 'the', 'effect', 'of', 'optical', 'bistability', 'using', 'the', 'microcavity', 'excitonpolaritons', 'in', 'a', 'honeycomb', 'arrangement', 'of', 'microcavity', 'pillars', 'we', 'report', 'the', 'resonance', 'response', 'and', 'bistability', 'of', 'the', 'topological', 'edge', 'states', 'a', 'balance', 'between', 'the', 'pump', 'loss', 'and', 'nonlinearity', 'ensures', 'a', 'broad', 'range', 'of', 'dynamical', 'stability', 'and', 'controls', 'the', 'distribution', 'of', 'power', 'between', 'counterpropagating', 'states', 'on', 'the', 'opposite', 'edges', 'of', 'the', 'honeycomb', 'lattice', 'stripe', 'tuning', 'energy', 'and', 'polarization', 'of', 'the', 'pump', 'photons', 'while', 'keeping', 'their', 'momentum', 'constant', 'we', 'demonstrate', 'control', 'of', 'the', 'propagation', 'direction', 'of', 'the', 'dominant', 'edge', 'state', 'our', 'results', 'facilitate', 'development', 'of', 'new', 'applications', 'of', 'topological', 'photonics', 'in', 'practical', 'devices']] | [-0.22662359970801194, 0.17767412880640648, -0.03636170296989586, -0.05000452874783734, -0.059293154866323555, -0.13946912273734705, 0.08494650996052511, 0.4201404772903941, -0.26529905754526, -0.27537528572416087, 0.013914180934480434, -0.27405374067826965, -0.1345348282281412, 0.19907944570850888, 0.011580973192878546, 0.10898143966648079, 0.009807169783450321, -0.08566406288893398, 0.021881767877574086, -0.157077661228426, 0.2915332251091684, 0.005016741999681321, 0.38312558590545565, 0.12141951425599122, 0.11370813012242727, 0.04203173117669419, 0.07883137127880109, -0.052426511206057506, -0.11764109557186929, 0.13903695791895682, 0.19102486564965765, -0.02946501465326329, 0.2732174975131083, -0.46260699127382093, -0.22595381035272954, 0.03522693053520191, 0.1292190848584842, 0.14642298629789383, -0.08840213209570069, -0.2863159890824912, 0.013968053359299078, -0.1312610324121875, -0.11679623125162651, -0.03604149627456561, -0.010174106223372007, 0.06954951468084025, -0.23079913719599948, 0.04103905533295159, 0.07903651034522485, 0.09147746182140817, -0.06244879053535, -0.05266456028292759, -0.11180976969019057, 0.09012719728650713, -0.04485898394000913, -0.040157697189154976, 0.1761484000609692, -0.21889714252389542, -0.18361387159162706, 0.3712906498940439, -0.04657220881252866, -0.12027624482716169, 0.15280686092451898, -0.1675842806636548, 0.0023190486373020967, 0.12414668319285463, 0.19437508258531766, 0.07852013151955987, -0.05190418578722779, 0.052008838654995615, -0.00477595077485803, 0.20334807180141637, 0.07297466756827241, 0.19385236470934447, 0.2550219568603356, 0.2007061285180373, 0.1038531703599985, 0.1892273089049572, -0.09130900899384069, -0.09778881097722952, -0.2827897534808229, -0.15593048759283276, -0.22140195895704107, 0.036851087145063036, -0.08587481843138331, -0.17416977443211124, 0.49555042150233863, 0.1396883735550704, 0.1803029718543958, -0.0550684424100119, 0.2871000485990299, 0.12077746978307297, 0.04793988864168251, 0.023981998815551537, 0.3180213332423992, 0.18197211550138548, 0.11240552852588168, -0.31050058531173325, 0.014347867360936666, -0.028098469604353565] |
1,802.00364 | Fermion-induced quantum criticality with two length scales in Dirac
systems | The quantum phase transition to a $\mathbb{Z}_3$-ordered Kekul\'e valence
bond solid in two-dimensional Dirac semimetals is governed by a fermion-induced
quantum critical point, which renders the putatively discontinuous transition
continuous. We study the resulting universal critical behavior in terms of a
functional RG approach, which gives access to the scaling behavior on the
symmetry-broken side of the phase transition, for general dimension and number
of Dirac fermions. In particular, we investigate the emergence of the
fermion-induced quantum critical point for space-time dimensions $2<d<4$. We
determine the integrated RG flow from the Dirac semi-metal to the
symmetry-broken regime and analyze the underlying fixed point structure. We
show that the fermion-induced criticality leads to a scaling form with two
divergent length scales, due to the breaking of the discrete $\mathbb{Z}_3$
symmetry. This provides another source of scaling corrections, besides the one
stemming from being in the proximity to the first order transition.
| cond-mat.str-el cond-mat.stat-mech hep-th | the quantum phase transition to a mathbbz_3ordered kekule valence bond solid in twodimensional dirac semimetals is governed by a fermioninduced quantum critical point which renders the putatively discontinuous transition continuous we study the resulting universal critical behavior in terms of a functional rg approach which gives access to the scaling behavior on the symmetrybroken side of the phase transition for general dimension and number of dirac fermions in particular we investigate the emergence of the fermioninduced quantum critical point for spacetime dimensions 2d4 we determine the integrated rg flow from the dirac semimetal to the symmetrybroken regime and analyze the underlying fixed point structure we show that the fermioninduced criticality leads to a scaling form with two divergent length scales due to the breaking of the discrete mathbbz_3 symmetry this provides another source of scaling corrections besides the one stemming from being in the proximity to the first order transition | [['the', 'quantum', 'phase', 'transition', 'to', 'a', 'mathbbz_3ordered', 'kekule', 'valence', 'bond', 'solid', 'in', 'twodimensional', 'dirac', 'semimetals', 'is', 'governed', 'by', 'a', 'fermioninduced', 'quantum', 'critical', 'point', 'which', 'renders', 'the', 'putatively', 'discontinuous', 'transition', 'continuous', 'we', 'study', 'the', 'resulting', 'universal', 'critical', 'behavior', 'in', 'terms', 'of', 'a', 'functional', 'rg', 'approach', 'which', 'gives', 'access', 'to', 'the', 'scaling', 'behavior', 'on', 'the', 'symmetrybroken', 'side', 'of', 'the', 'phase', 'transition', 'for', 'general', 'dimension', 'and', 'number', 'of', 'dirac', 'fermions', 'in', 'particular', 'we', 'investigate', 'the', 'emergence', 'of', 'the', 'fermioninduced', 'quantum', 'critical', 'point', 'for', 'spacetime', 'dimensions', '2d4', 'we', 'determine', 'the', 'integrated', 'rg', 'flow', 'from', 'the', 'dirac', 'semimetal', 'to', 'the', 'symmetrybroken', 'regime', 'and', 'analyze', 'the', 'underlying', 'fixed', 'point', 'structure', 'we', 'show', 'that', 'the', 'fermioninduced', 'criticality', 'leads', 'to', 'a', 'scaling', 'form', 'with', 'two', 'divergent', 'length', 'scales', 'due', 'to', 'the', 'breaking', 'of', 'the', 'discrete', 'mathbbz_3', 'symmetry', 'this', 'provides', 'another', 'source', 'of', 'scaling', 'corrections', 'besides', 'the', 'one', 'stemming', 'from', 'being', 'in', 'the', 'proximity', 'to', 'the', 'first', 'order', 'transition']] | [-0.195639905513533, 0.1975464581093132, -0.1090287858364016, 0.042816553227353414, -0.04820485201651768, -0.158361359089988, 0.10341221085927706, 0.28357251488522395, -0.2590168559323721, -0.21908699823605934, 0.04114657619205497, -0.3286237482781578, -0.18709738210356175, 0.10688206487204005, 0.03512762069402125, 0.06786549319325627, -0.08517963894574135, 0.03231156985244195, -0.14358564732821297, -0.15713073449965642, 0.3755522472908933, -0.010490027946207497, 0.3311652944817039, 0.06609247128585441, 0.04438876531449391, -0.021840476224686475, 0.07928100192017741, 0.011053078986029297, -0.1502695339460855, 0.06270856738181148, 0.2172263411456569, -0.06459812110058663, 0.18528756313079667, -0.3831364180792698, -0.2179991149237292, 0.06673378401104636, 0.1501264546266538, 0.14548442154597716, -0.05257801483182124, -0.2981096899711946, 0.06915736627208706, -0.14528749686909603, -0.17547276096055972, -0.07297102008139927, -0.021083422448961126, -0.0731960975099355, -0.24081589337696177, 0.08351813893665204, 0.03459577702201478, 0.051156699463675084, -0.012378355617878721, -0.03924458689171971, -0.050975296504158, 0.14876462741608062, 0.06483204468565949, 0.030283830129391447, 0.10156374287888432, -0.1527866563937883, -0.12041597097999597, 0.4472916668262208, -0.019025293386685068, -0.1287576713593014, 0.19157062534980426, -0.1723479970370813, -0.1215439768408069, 0.15114408864595946, 0.1490235877920242, 0.05441633976008368, -0.09720008126530334, 0.11397024418380511, 0.004408618685283117, 0.13995471611152552, 0.01793283912909511, 0.0470113446017971, 0.2220931147481471, 0.14229864711504456, 0.09215521088007513, 0.1711097531170653, -0.09270038061240851, -0.2014448653434672, -0.33555354752996625, -0.17421011411703674, -0.2141887359141416, 0.09096223106857815, -0.13043172130436986, -0.22938311818812118, 0.4166573354421221, 0.17619080005069856, 0.204273149202384, 0.003586814687243544, 0.19297094105886634, 0.18368753051422787, 0.044451012138602315, 0.06935375096313906, 0.21964259665996935, 0.10860012157510766, 0.09499869264674767, -0.28929105224775387, -0.006100598691443869, 0.1402938075913679] |
1,802.00365 | Spinning Wormholes in Scalar-Tensor Theory | We consider spinning generalizations of the Ellis wormhole in scalar-tensor
theory. Analogous to other compact objects these wormholes can carry a
non-trivial scalarization. We determine the domain of existence of the
scalarized wormholes and investigate the effect of the scalarization on their
properties. Depending on the choice of the coupling function, they may possess
multiple throats and equators in the Jordan frame, while possessing only a
single throat in the Einstein frame.
| gr-qc | we consider spinning generalizations of the ellis wormhole in scalartensor theory analogous to other compact objects these wormholes can carry a nontrivial scalarization we determine the domain of existence of the scalarized wormholes and investigate the effect of the scalarization on their properties depending on the choice of the coupling function they may possess multiple throats and equators in the jordan frame while possessing only a single throat in the einstein frame | [['we', 'consider', 'spinning', 'generalizations', 'of', 'the', 'ellis', 'wormhole', 'in', 'scalartensor', 'theory', 'analogous', 'to', 'other', 'compact', 'objects', 'these', 'wormholes', 'can', 'carry', 'a', 'nontrivial', 'scalarization', 'we', 'determine', 'the', 'domain', 'of', 'existence', 'of', 'the', 'scalarized', 'wormholes', 'and', 'investigate', 'the', 'effect', 'of', 'the', 'scalarization', 'on', 'their', 'properties', 'depending', 'on', 'the', 'choice', 'of', 'the', 'coupling', 'function', 'they', 'may', 'possess', 'multiple', 'throats', 'and', 'equators', 'in', 'the', 'jordan', 'frame', 'while', 'possessing', 'only', 'a', 'single', 'throat', 'in', 'the', 'einstein', 'frame']] | [-0.2218019656979272, 0.0762458394553202, -0.11342296597205051, 0.11788333252641475, -0.1601539426095163, -0.13360489161115968, -0.007768479584936156, 0.3431106994394213, -0.18542077334778798, -0.27326567251131767, 0.09661972121911175, -0.23852817011841884, -0.09466657682140875, 0.1401307946847131, -0.07724956817562795, -0.014361604194467267, -0.02561172705868052, 0.08748879240980993, -0.12698625241723172, -0.19754123137034993, 0.416157124868025, 0.0009123740924729242, 0.22617725610810643, -0.016789956328769524, 0.06721636682050303, -0.01139536612511923, 0.013090649946308177, 0.05568137459017129, -0.16638957142519453, 0.06243776766415168, 0.17045338177639577, 0.13452418830193993, 0.2066538338549435, -0.4296650386176124, -0.23650727377066183, 0.12513767201582798, 0.1381912499329903, 0.1367612138646008, -0.05690179356962391, -0.3241420142973463, 0.07456148678708512, -0.15664682722449974, -0.16323711573042804, -0.06293611844173735, 0.043840614018133946, 0.04017077797632535, -0.16692266377503984, 0.04550394097653528, 0.0749498037298003, -0.06756881647743285, -0.13770963406164405, -0.02474899685087924, -0.05147581210541022, 0.07177096613061924, 0.13471663560065078, -0.02704921964808212, 0.16078991767588174, -0.14238746748823258, -0.09154090500022802, 0.4001881041460567, -0.09467282104904168, -0.27367908719720113, 0.17931551059397557, -0.19119954398936695, -0.10490683463609053, 0.05540926913252204, 0.15700628633688515, 0.25071010369962704, -0.10484061892040902, 0.13390134855580982, -0.040890842591276545, 0.11623511643200699, 0.19593109469860792, 0.08371118122239649, 0.3696183993274139, 0.07387382932938635, 0.01575663575850841, 0.1564344271521097, -0.041852883024451636, -0.10631786094098869, -0.37875940487154164, -0.13729031027954383, -0.12230405041352949, 0.08608457676341964, -0.15278526351539767, -0.21123319322295073, 0.3805136630285738, 0.07020426793314982, 0.13340798332743967, 0.013984970463853743, 0.16293639462674037, 0.04691875073735395, 0.07601785493898205, 0.07056859996454376, 0.3574480988706152, 0.10904184934851299, 0.06421634983336036, -0.2515169998255765, -0.049869222482407674, 0.07623912359768939] |
1,802.00366 | Dimensionless $L^p$ estimates for the Riesz vector on manifolds | We present a new proof of the dimensionless $L^p$ boundedness of the Riesz
vector on manifolds with bounded geometry. Our proof has the significant
advantage that it allows for a much stronger conclusion, namely that of a new
dimensionless weighted $L^p$ estimate with optimal exponent. Other than
previous arguments, only a small part of our proof is based on special
auxiliary functions, the core of the argument is a weak type estimate and a
sparse decomposition of the stochastic process by X.D. Li, whose projection is
the Riesz vector.
| math.PR | we present a new proof of the dimensionless lp boundedness of the riesz vector on manifolds with bounded geometry our proof has the significant advantage that it allows for a much stronger conclusion namely that of a new dimensionless weighted lp estimate with optimal exponent other than previous arguments only a small part of our proof is based on special auxiliary functions the core of the argument is a weak type estimate and a sparse decomposition of the stochastic process by xd li whose projection is the riesz vector | [['we', 'present', 'a', 'new', 'proof', 'of', 'the', 'dimensionless', 'lp', 'boundedness', 'of', 'the', 'riesz', 'vector', 'on', 'manifolds', 'with', 'bounded', 'geometry', 'our', 'proof', 'has', 'the', 'significant', 'advantage', 'that', 'it', 'allows', 'for', 'a', 'much', 'stronger', 'conclusion', 'namely', 'that', 'of', 'a', 'new', 'dimensionless', 'weighted', 'lp', 'estimate', 'with', 'optimal', 'exponent', 'other', 'than', 'previous', 'arguments', 'only', 'a', 'small', 'part', 'of', 'our', 'proof', 'is', 'based', 'on', 'special', 'auxiliary', 'functions', 'the', 'core', 'of', 'the', 'argument', 'is', 'a', 'weak', 'type', 'estimate', 'and', 'a', 'sparse', 'decomposition', 'of', 'the', 'stochastic', 'process', 'by', 'xd', 'li', 'whose', 'projection', 'is', 'the', 'riesz', 'vector']] | [-0.10631666754913946, 0.06333881172906147, -0.1124195394974746, 0.08441084250490972, -0.15395144547212847, -0.14065190640100267, 0.059196908509599445, 0.2861918908324135, -0.2674946106886596, -0.216994668838432, 0.12768506706074884, -0.2397211045446986, -0.14172338886223104, 0.22157289597906926, -0.0722548941652594, 0.032888404077986315, 0.06910906614882223, 0.05529816564319007, -0.09247904739687952, -0.2312998470504967, 0.38556569902582116, 0.019999566712950386, 0.23133622607467383, 0.0416821773540689, 0.13223901046753933, 0.03948920042766781, -0.04969149790808893, -0.022096187250395673, -0.14821717341438986, 0.18642057055931832, 0.16137244127000147, 0.10866676829755306, 0.3367794681800885, -0.3632785997698816, -0.20167723249937042, 0.1459765371897917, 0.10924896360551573, 0.05120842960359675, -0.038383017286260646, -0.27461396920588915, 0.12181332096290053, -0.10291678307766325, -0.12977042622089888, -0.07658567906127134, 0.054172974964080564, 0.0553658426127114, -0.31081189539576515, 0.061961335511982775, 0.18518392220558075, 0.029093984085438628, -0.09477323625665786, -0.16794047816499566, 0.011236913585930729, 0.007396777547644765, 0.024411803427652007, 0.10278776097059082, 0.0868602411277341, -0.03299824334681034, -0.08703113112891658, 0.3057059766201491, -0.09379060824713643, -0.25248399265947635, 0.1530507443436118, -0.13241335463427592, -0.1251795816999138, 0.09480189116870504, 0.12706712398971065, 0.1807858350822765, -0.09521937304898427, 0.12323433749333254, -0.11131040831593525, 0.18715899263958582, 0.03540160092577506, 0.04995321976858076, 0.0809288156857149, 0.14749375571695605, 0.16942040144539114, 0.14031546486586102, -0.047157894077009696, -0.10058809513372652, -0.3530908788690406, -0.17031930755363422, -0.23864951294459655, 0.0827499285125791, -0.19416287909454819, -0.17990472521423623, 0.3728693956587715, 0.07292275618385063, 0.189135174967775, 0.10020710564521926, 0.27735364271505747, 0.15162911225800937, 0.08021415842780738, 0.037567780546718436, 0.250276500934714, 0.16919045843278174, 0.08868074261196209, -0.15253280044083348, 0.07896641622496288, 0.20269647882672504] |
1,802.00367 | Reconstructing quantum theory from diagrammatic postulates | We present a reconstruction of finite-dimensional quantum theory where all of
the postulates are stated in diagrammatic terms, making them intuitive.
Equivalently, they are stated in category-theoretic terms, making them
mathematically appealing. Again equivalently, they are stated in
process-theoretic terms, establishing that the conceptual backbone of quantum
theory concerns the manner in which systems and processes compose.
Aside from the diagrammatic form, the key novel aspect of this reconstruction
is the introduction of a new postulate, symmetric purification. Unlike the
ordinary purification postulate, symmetric purification applies equally well to
classical theory as well as quantum theory. Therefore we first reconstruct the
full process theoretic description of quantum theory, consisting of composite
classical-quantum systems and their interactions, before restricting ourselves
to just the `fully quantum' systems as the final step. We propose two novel
alternative manners of doing so, `no-leaking' (roughly that information gain
causes disturbance) and `purity of cups' (roughly the existence of entangled
states). Interestingly, these turn out to be equivalent in any process theory
with cups & caps. Additionally, we show how the standard purification postulate
can be seen as an immediate consequence of the symmetric purification postulate
and purity of cups.
Other tangential results concern the specific frameworks of generalised
probabilistic theories (GPTs) and process theories (a.k.a. CQM). Firstly, we
provide a diagrammatic presentation of GPTs, which, henceforth, can be subsumed
under process theories. Secondly, we argue that the `sharp dagger' is indeed
the right choice of a dagger structure as this sharpness is vital to the
reconstruction.
| quant-ph | we present a reconstruction of finitedimensional quantum theory where all of the postulates are stated in diagrammatic terms making them intuitive equivalently they are stated in categorytheoretic terms making them mathematically appealing again equivalently they are stated in processtheoretic terms establishing that the conceptual backbone of quantum theory concerns the manner in which systems and processes compose aside from the diagrammatic form the key novel aspect of this reconstruction is the introduction of a new postulate symmetric purification unlike the ordinary purification postulate symmetric purification applies equally well to classical theory as well as quantum theory therefore we first reconstruct the full process theoretic description of quantum theory consisting of composite classicalquantum systems and their interactions before restricting ourselves to just the fully quantum systems as the final step we propose two novel alternative manners of doing so noleaking roughly that information gain causes disturbance and purity of cups roughly the existence of entangled states interestingly these turn out to be equivalent in any process theory with cups caps additionally we show how the standard purification postulate can be seen as an immediate consequence of the symmetric purification postulate and purity of cups other tangential results concern the specific frameworks of generalised probabilistic theories gpts and process theories aka cqm firstly we provide a diagrammatic presentation of gpts which henceforth can be subsumed under process theories secondly we argue that the sharp dagger is indeed the right choice of a dagger structure as this sharpness is vital to the reconstruction | [['we', 'present', 'a', 'reconstruction', 'of', 'finitedimensional', 'quantum', 'theory', 'where', 'all', 'of', 'the', 'postulates', 'are', 'stated', 'in', 'diagrammatic', 'terms', 'making', 'them', 'intuitive', 'equivalently', 'they', 'are', 'stated', 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1,802.00368 | Polyp Segmentation in Colonoscopy Images Using Fully Convolutional
Network | Colorectal cancer is a one of the highest causes of cancer-related death,
especially in men. Polyps are one of the main causes of colorectal cancer and
early diagnosis of polyps by colonoscopy could result in successful treatment.
Diagnosis of polyps in colonoscopy videos is a challenging task due to
variations in the size and shape of polyps. In this paper we proposed a polyp
segmentation method based on convolutional neural network. Performance of the
method is enhanced by two strategies. First, we perform a novel image patch
selection method in the training phase of the network. Second, in the test
phase, we perform an effective post processing on the probability map that is
produced by the network. Evaluation of the proposed method using the
CVC-ColonDB database shows that our proposed method achieves more accurate
results in comparison with previous colonoscopy video-segmentation methods.
| eess.IV | colorectal cancer is a one of the highest causes of cancerrelated death especially in men polyps are one of the main causes of colorectal cancer and early diagnosis of polyps by colonoscopy could result in successful treatment diagnosis of polyps in colonoscopy videos is a challenging task due to variations in the size and shape of polyps in this paper we proposed a polyp segmentation method based on convolutional neural network performance of the method is enhanced by two strategies first we perform a novel image patch selection method in the training phase of the network second in the test phase we perform an effective post processing on the probability map that is produced by the network evaluation of the proposed method using the cvccolondb database shows that our proposed method achieves more accurate results in comparison with previous colonoscopy videosegmentation methods | [['colorectal', 'cancer', 'is', 'a', 'one', 'of', 'the', 'highest', 'causes', 'of', 'cancerrelated', 'death', 'especially', 'in', 'men', 'polyps', 'are', 'one', 'of', 'the', 'main', 'causes', 'of', 'colorectal', 'cancer', 'and', 'early', 'diagnosis', 'of', 'polyps', 'by', 'colonoscopy', 'could', 'result', 'in', 'successful', 'treatment', 'diagnosis', 'of', 'polyps', 'in', 'colonoscopy', 'videos', 'is', 'a', 'challenging', 'task', 'due', 'to', 'variations', 'in', 'the', 'size', 'and', 'shape', 'of', 'polyps', 'in', 'this', 'paper', 'we', 'proposed', 'a', 'polyp', 'segmentation', 'method', 'based', 'on', 'convolutional', 'neural', 'network', 'performance', 'of', 'the', 'method', 'is', 'enhanced', 'by', 'two', 'strategies', 'first', 'we', 'perform', 'a', 'novel', 'image', 'patch', 'selection', 'method', 'in', 'the', 'training', 'phase', 'of', 'the', 'network', 'second', 'in', 'the', 'test', 'phase', 'we', 'perform', 'an', 'effective', 'post', 'processing', 'on', 'the', 'probability', 'map', 'that', 'is', 'produced', 'by', 'the', 'network', 'evaluation', 'of', 'the', 'proposed', 'method', 'using', 'the', 'cvccolondb', 'database', 'shows', 'that', 'our', 'proposed', 'method', 'achieves', 'more', 'accurate', 'results', 'in', 'comparison', 'with', 'previous', 'colonoscopy', 'videosegmentation', 'methods']] | [-0.04534928240796684, -0.02659592460497931, -0.07547478658047371, 0.04536136710001821, -0.030404895715348955, -0.13569684400156673, 0.03669779051644062, 0.4086299414081233, -0.14585228616903936, -0.3001581171460982, 0.08060606493880706, -0.26066859790922275, -0.24299281002687556, 0.22225342288480274, -0.19505653851665555, 0.054571766825392845, 0.1543713506419278, 0.05206153645579304, 0.0006445864980508174, -0.3251003328112087, 0.276357244276109, 0.048753461882006376, 0.35767989214509727, 0.03257007420013126, 0.08182158320310659, -0.033419091149283174, -0.06838056212956352, -0.007512551794726667, -0.04222300153809816, 0.1586589311249554, 0.29749731553019954, 0.20812562914299113, 0.34957787974271926, -0.4043618555047682, -0.22079162014415488, 0.09962092150734471, 0.1399611129857866, 0.14425206208335503, -0.04422132400681481, -0.31692462413338945, 0.10630847983744128, -0.1511781684025274, -0.017709157293471174, -0.07342051263965134, -0.01216584914696536, -0.053801823201190146, -0.29932388620051953, 0.13901800227654998, 0.03396467125982911, 0.08243131597992033, -0.08178845714012693, -0.09319185222266242, 0.022369246625541045, 0.1807904825978247, 0.04809966970767294, 0.08517388018912503, 0.13311046829912812, -0.18648670963510605, -0.14478599149110127, 0.37284709406750544, -0.050251169575910484, -0.15443969197305185, 0.17751425907980384, -0.06765648417141555, -0.13666425933396179, 0.16603345901572278, 0.19094454353658616, 0.17403377127234956, -0.1682470541181309, -0.07419017295635838, 0.011282865869413529, 0.17248446627054365, 0.06877450341333835, -0.06625525721881007, 0.13921833769584607, 0.3069076201678919, -0.005225597516982816, 0.16135989538826315, -0.2072662714236815, -0.002718766768729048, -0.20644227602253004, -0.15918914009224475, -0.17260681759882054, -0.07324745359115435, -0.09610751324445509, -0.16709085784386843, 0.43301970516996724, 0.21985838979349603, 0.17029683337064594, 0.017201180084209358, 0.35137247246290954, 0.000652752015905987, 0.12115106705875535, -0.0036472869858178974, 0.19802445488582765, 0.025904978949776187, 0.10343953898284651, -0.24541295977562966, 0.13541130610309274, 0.09758705793148173] |
1,802.00369 | EDIBLES II. On the detectability of C60+ bands | Gas phase spectroscopic laboratory experiments for the buckminsterfullerene
cation C60+ resulted in accurate rest wavelengths for five C60+ transitions
that have been compared with diffuse interstellar bands (DIBs) in the near
infra-red. Detecting these in astronomical spectra is difficult due to the
strong contamination of ground-based spectra by atmospheric water vapor, to the
presence of weak and shallow stellar lines and/or blending with other weak
DIBs. The detection of the two strong bands has been claimed by several teams,
and the three additional and weaker bands have been detected in a few sources.
Certain recent papers have argued against the identification of C60+ based on
spectral analyses claiming (i) a large variation in the ratio between the
equivalent widths of the 9632 and 9577\AA\: bands, (ii) a large redshift of the
9632\AA\: band for the Orion star HD 37022, and (iii) the non-detection of the
weaker 9428\AA~DIB. Here we address these three points. (i) We show that the
model stellar line correction for the 9632\AA~DIB overestimates the difference
between the strengths of the lines in giant and dwarf star spectra, casting
doubts on the conclusions about the ratio variability. (ii) Using high quality
stellar spectra from the ESO Diffuse Interstellar Bands Large Exploration
Survey (EDIBLES), recorded with the ESO/Paranal Ultraviolet Echelle
Spectrograph (UVES) in about the same atmospheric conditions, we find no
wavelength shift in the 9632\AA\ band towards HD 37022. (iii) Using EDIBLES
spectra and data from the Echelle SpectroPolarimetric Device for the
Observation of Stars (ESPaDOnS) at CFHT we show that the presence of a weak
9428\AA\ band cannot be ruled out, even in the same observations that a
previous study claimed it was not present.
| astro-ph.GA | gas phase spectroscopic laboratory experiments for the buckminsterfullerene cation c60 resulted in accurate rest wavelengths for five c60 transitions that have been compared with diffuse interstellar bands dibs in the near infrared detecting these in astronomical spectra is difficult due to the strong contamination of groundbased spectra by atmospheric water vapor to the presence of weak and shallow stellar lines andor blending with other weak dibs the detection of the two strong bands has been claimed by several teams and the three additional and weaker bands have been detected in a few sources certain recent papers have argued against the identification of c60 based on spectral analyses claiming i a large variation in the ratio between the equivalent widths of the 9632 and 9577aa bands ii a large redshift of the 9632aa band for the orion star hd 37022 and iii the nondetection of the weaker 9428aadib here we address these three points i we show that the model stellar line correction for the 9632aadib overestimates the difference between the strengths of the lines in giant and dwarf star spectra casting doubts on the conclusions about the ratio variability ii using high quality stellar spectra from the eso diffuse interstellar bands large exploration survey edibles recorded with the esoparanal ultraviolet echelle spectrograph uves in about the same atmospheric conditions we find no wavelength shift in the 9632aa band towards hd 37022 iii using edibles spectra and data from the echelle spectropolarimetric device for the observation of stars espadons at cfht we show that the presence of a weak 9428aa band cannot be ruled out even in the same observations that a previous study claimed it was not present | [['gas', 'phase', 'spectroscopic', 'laboratory', 'experiments', 'for', 'the', 'buckminsterfullerene', 'cation', 'c60', 'resulted', 'in', 'accurate', 'rest', 'wavelengths', 'for', 'five', 'c60', 'transitions', 'that', 'have', 'been', 'compared', 'with', 'diffuse', 'interstellar', 'bands', 'dibs', 'in', 'the', 'near', 'infrared', 'detecting', 'these', 'in', 'astronomical', 'spectra', 'is', 'difficult', 'due', 'to', 'the', 'strong', 'contamination', 'of', 'groundbased', 'spectra', 'by', 'atmospheric', 'water', 'vapor', 'to', 'the', 'presence', 'of', 'weak', 'and', 'shallow', 'stellar', 'lines', 'andor', 'blending', 'with', 'other', 'weak', 'dibs', 'the', 'detection', 'of', 'the', 'two', 'strong', 'bands', 'has', 'been', 'claimed', 'by', 'several', 'teams', 'and', 'the', 'three', 'additional', 'and', 'weaker', 'bands', 'have', 'been', 'detected', 'in', 'a', 'few', 'sources', 'certain', 'recent', 'papers', 'have', 'argued', 'against', 'the', 'identification', 'of', 'c60', 'based', 'on', 'spectral', 'analyses', 'claiming', 'i', 'a', 'large', 'variation', 'in', 'the', 'ratio', 'between', 'the', 'equivalent', 'widths', 'of', 'the', '9632', 'and', '9577aa', 'bands', 'ii', 'a', 'large', 'redshift', 'of', 'the', '9632aa', 'band', 'for', 'the', 'orion', 'star', 'hd', '37022', 'and', 'iii', 'the', 'nondetection', 'of', 'the', 'weaker', '9428aadib', 'here', 'we', 'address', 'these', 'three', 'points', 'i', 'we', 'show', 'that', 'the', 'model', 'stellar', 'line', 'correction', 'for', 'the', '9632aadib', 'overestimates', 'the', 'difference', 'between', 'the', 'strengths', 'of', 'the', 'lines', 'in', 'giant', 'and', 'dwarf', 'star', 'spectra', 'casting', 'doubts', 'on', 'the', 'conclusions', 'about', 'the', 'ratio', 'variability', 'ii', 'using', 'high', 'quality', 'stellar', 'spectra', 'from', 'the', 'eso', 'diffuse', 'interstellar', 'bands', 'large', 'exploration', 'survey', 'edibles', 'recorded', 'with', 'the', 'esoparanal', 'ultraviolet', 'echelle', 'spectrograph', 'uves', 'in', 'about', 'the', 'same', 'atmospheric', 'conditions', 'we', 'find', 'no', 'wavelength', 'shift', 'in', 'the', '9632aa', 'band', 'towards', 'hd', '37022', 'iii', 'using', 'edibles', 'spectra', 'and', 'data', 'from', 'the', 'echelle', 'spectropolarimetric', 'device', 'for', 'the', 'observation', 'of', 'stars', 'espadons', 'at', 'cfht', 'we', 'show', 'that', 'the', 'presence', 'of', 'a', 'weak', '9428aa', 'band', 'can', 'not', 'be', 'ruled', 'out', 'even', 'in', 'the', 'same', 'observations', 'that', 'a', 'previous', 'study', 'claimed', 'it', 'was', 'not', 'present']] | [-0.08065709526136333, 0.07079734205525887, -0.041215478538129575, 0.043636952980588645, -0.07037455805120205, -0.10775732319467725, 0.06920520372555725, 0.44675178991651143, -0.15414598257018206, -0.3353380016767635, 0.06509840000555561, -0.3111721601323549, -0.05126426777983214, 0.1622117400773197, -0.014054471450955524, -0.015105206991849474, 0.10672280103507223, -0.10773452158314568, -0.020550749502125563, -0.22218054898625628, 0.29710976660017935, 0.09290519952791106, 0.22433057672176987, 0.04801914736631944, 0.01758155274979306, -0.08048495578310101, -0.09336981508495361, 0.00326045350454775, -0.1233851268906496, 0.06694898471219599, 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1,802.0037 | Acceptable colorings of indexed hyperspaces | Previous results about $n$-grids with acceptable colorings are extended to
$n$-indexed hyperspaces, which are structures ${\mathcal A} = (A;E_0,E_1,
\ldots, E_{n-1})$, where each $E_i$ is an equivalence relation.
| math.LO | previous results about ngrids with acceptable colorings are extended to nindexed hyperspaces which are structures mathcal a ae_0e_1 ldots e_n1 where each e_i is an equivalence relation | [['previous', 'results', 'about', 'ngrids', 'with', 'acceptable', 'colorings', 'are', 'extended', 'to', 'nindexed', 'hyperspaces', 'which', 'are', 'structures', 'mathcal', 'a', 'ae_0e_1', 'ldots', 'e_n1', 'where', 'each', 'e_i', 'is', 'an', 'equivalence', 'relation']] | [-0.22767586757739386, 0.17869715300003008, -0.04977845695490638, 0.0389834748202702, -0.13254475552821532, -0.1702392350222605, -0.08991981895330052, 0.4209845041235288, -0.32300905060643953, -0.2534758907277137, 0.08744128614974518, -0.3549773758277297, -0.08126621825310092, 0.1465905917187532, -0.15013217130520692, -0.029204977210611105, 0.05160160711966455, 0.1256830389611423, -0.0660650940456738, -0.26155161710145575, 0.2715347228028501, -0.029738118212359648, 0.18593328927333155, 0.0007112778257578611, 0.06725595709091674, -0.0988070093250523, 0.05625557107850909, 0.009600267202282945, -0.2051358576087902, 0.14024414754627892, 0.3315944345667958, 0.1100656643199424, 0.2045395170377257, -0.3261859000194818, -0.09504807533327646, 0.2059785903741916, 0.1650436066556722, -0.057041953137741075, 0.06635925127193332, -0.28235966760742787, 0.1444973497224661, -0.1685480154507483, -0.06737049824247758, -0.039575836912263185, 0.13001859393746903, 0.05035827363220354, -0.340922551540037, 0.0035005409736186266, 0.09463632541398208, 0.07409576062733929, -0.041208655689843, -0.16976790231031677, -0.12202867667656392, 0.07931246404768899, -0.02860259649848255, 0.11288826074451208, 0.0055717552119555576, -0.026682138598213594, -0.16876012494321913, 0.3842914244160056, 0.04343857530814906, -0.24064483866095543, 0.10829154613505428, -0.11857438037016739, -0.207622560672462, 0.08301434208018084, -0.0016018540676062305, 0.13370053858185807, -0.06874277562989543, 0.1370907862049838, -0.2150110708704839, 0.13846143808526298, 0.10299035743810236, 0.09290912576640646, 0.15466523638072735, 0.04478970061366757, 0.04469584867668649, 0.09901348758527699, 0.08042520835685234, -0.05385189891482393, -0.3955224007368088, -0.078086485460517, -0.05150821587691704, 0.11227169904547434, -0.14795363694429398, -0.08556870619455974, 0.31506987707689404, 0.13560374314935567, 0.2606252832726265, 0.1597099842474563, 0.21887171518756077, 0.07452925701121178, 0.03578620761012038, 0.1269427589334858, 0.082366943359375, 0.19390982404972115, -0.13053178385598585, -0.054244716050258525, -0.010921073456605276, 0.13942982233129442] |
1,802.00371 | Tattoo-Paper Transfer as a Versatile Platform for All-Printed Organic
Edible Electronics | The use of natural or bioinspired materials to develop edible electronic
devices is a potentially disruptive technology that can boost point-of-care
testing. The technology exploits devices which can be safely ingested, along
with pills or even food, and operated from within the gastrointestinal tract.
Ingestible electronics could potentially target a significant number of
biomedical applications, both as therapeutic and diagnostic tool, and this
technology may also impact the food industry, by providing ingestible or
food-compatible electronic tags that can smart track goods and monitor their
quality along the distribution chain. We hereby propose temporary tattoo-paper
as a simple and versatile platform for the integration of electronics onto food
and pharmaceutical capsules. In particular, we demonstrate the fabrication of
all-printed Organic Field-Effect Transistors (OFETs) on untreated commercial
tattoo-paper, and their subsequent transfer and operation on edible substrates
with a complex non-planar geometry.
| physics.app-ph cond-mat.mtrl-sci | the use of natural or bioinspired materials to develop edible electronic devices is a potentially disruptive technology that can boost pointofcare testing the technology exploits devices which can be safely ingested along with pills or even food and operated from within the gastrointestinal tract ingestible electronics could potentially target a significant number of biomedical applications both as therapeutic and diagnostic tool and this technology may also impact the food industry by providing ingestible or foodcompatible electronic tags that can smart track goods and monitor their quality along the distribution chain we hereby propose temporary tattoopaper as a simple and versatile platform for the integration of electronics onto food and pharmaceutical capsules in particular we demonstrate the fabrication of allprinted organic fieldeffect transistors ofets on untreated commercial tattoopaper and their subsequent transfer and operation on edible substrates with a complex nonplanar geometry | [['the', 'use', 'of', 'natural', 'or', 'bioinspired', 'materials', 'to', 'develop', 'edible', 'electronic', 'devices', 'is', 'a', 'potentially', 'disruptive', 'technology', 'that', 'can', 'boost', 'pointofcare', 'testing', 'the', 'technology', 'exploits', 'devices', 'which', 'can', 'be', 'safely', 'ingested', 'along', 'with', 'pills', 'or', 'even', 'food', 'and', 'operated', 'from', 'within', 'the', 'gastrointestinal', 'tract', 'ingestible', 'electronics', 'could', 'potentially', 'target', 'a', 'significant', 'number', 'of', 'biomedical', 'applications', 'both', 'as', 'therapeutic', 'and', 'diagnostic', 'tool', 'and', 'this', 'technology', 'may', 'also', 'impact', 'the', 'food', 'industry', 'by', 'providing', 'ingestible', 'or', 'foodcompatible', 'electronic', 'tags', 'that', 'can', 'smart', 'track', 'goods', 'and', 'monitor', 'their', 'quality', 'along', 'the', 'distribution', 'chain', 'we', 'hereby', 'propose', 'temporary', 'tattoopaper', 'as', 'a', 'simple', 'and', 'versatile', 'platform', 'for', 'the', 'integration', 'of', 'electronics', 'onto', 'food', 'and', 'pharmaceutical', 'capsules', 'in', 'particular', 'we', 'demonstrate', 'the', 'fabrication', 'of', 'allprinted', 'organic', 'fieldeffect', 'transistors', 'ofets', 'on', 'untreated', 'commercial', 'tattoopaper', 'and', 'their', 'subsequent', 'transfer', 'and', 'operation', 'on', 'edible', 'substrates', 'with', 'a', 'complex', 'nonplanar', 'geometry']] | [-0.07889818401674122, 0.12103130699162555, -0.03088659790419314, -0.00011571682309799821, -0.09467051831332382, -0.1877793101755304, 0.05055481528890503, 0.4466553982891088, -0.2401861434489706, -0.3228082711176172, 0.1302668437536765, -0.2725359207039604, -0.16975114878137887, 0.2840006460323522, -0.1265695180937675, 0.03878670400280478, 0.045603432079919876, -0.04341725423425626, 0.02811091629971825, -0.1687329015159218, 0.1914198129628207, 0.07089977258693998, 0.36380968483531995, 0.10811116351290559, 0.1055159377389635, 0.010317018513914443, 0.03193421910659675, -0.026228406650089, -0.07468218521954727, 0.1807114904827989, 0.3258697815429773, 0.10704230407021777, 0.302817311586581, -0.5172120178669409, -0.22005273180123228, 0.06917908342884867, 0.13892138515765623, 0.08408818180744203, -0.1254773533199472, -0.2820724861791534, 0.09163433671453083, -0.2406195653024653, -0.11028328014135762, -0.11153719175171896, -0.02792464852346665, 0.06111627858961477, -0.20238655643795964, -0.028930000867567154, -0.03162253825809725, 0.0650006447116552, -0.044953863455337834, -0.10707295401851191, -0.06526766522332048, 0.18622093494254144, -0.021375698243562273, -0.011765385573444358, 0.28883411742434123, -0.1862772234535375, -0.11784983124502384, 0.38088995609840337, -0.002659873200757225, -0.149179349877756, 0.22569277817315428, -0.07848703847300724, -0.07769045088419786, 0.07081703079633252, 0.2313132503131119, 0.07648587065755669, -0.20486982440045715, 0.0069405396203816375, 0.08420548510455601, 0.15885127200507118, 0.08911296395061497, 0.03889235457147125, 0.2587650647798186, 0.23719905018908427, 0.05082848326160307, 0.1400238920647284, -0.09870894315795306, -0.006415313266108941, -0.1690425736163437, -0.2522324854008816, -0.1109722161080933, 0.08565926926727169, -0.06397076621379731, -0.19348035217092854, 0.35951343053666346, 0.14847860246345923, 0.09627857312804809, -0.037240470440915524, 0.34424405334259034, -0.018299523950044583, 0.14797365194760997, -0.03414637779300339, 0.1505983398588252, 0.026431134094681293, 0.16457716339560102, -0.14315471896667198, 0.15306778523703887, -0.058258802942714114] |
1,802.00372 | Development of a Lunar Scintillometer as part of the National Large
Optical Telescope Site Survey | Ground layer turbulence is a very important site characterization parameter
used to assess the quality of an astronomical site. The Lunar Scintillometer is
a simple and effective site-testing device for measuring the ground layer
turbulence. It consists of a linear array of photodiodes which are sensitive to
the slight variations in the moon's brightness due to scintillation by the
lower layers of the Earth's atmosphere. The covariance of intensity values
between the non-redundant photodiode baselines can be used to measure the
turbulence profile from the ground up to a height determined by the furthest
pair of detectors. The six channel lunar scintillometer that has been developed
at the Indian Institute of Astrophysics is based closely on an instrument built
by the team led by Andrei Tokovinin of Cerro Tololo Inter-American Observatory
(CTIO), Chile. We have fabricated the instrument based on the existing
electronic design, and have worked on the noise analysis, an EMI
(Electromagnetic Induction) resistant PCB design and the software pipeline for
analyzing the data from the same. The results from the instrument's multi-year
campaign at Mount Saraswati, Hanle is also presented.
| astro-ph.IM | ground layer turbulence is a very important site characterization parameter used to assess the quality of an astronomical site the lunar scintillometer is a simple and effective sitetesting device for measuring the ground layer turbulence it consists of a linear array of photodiodes which are sensitive to the slight variations in the moons brightness due to scintillation by the lower layers of the earths atmosphere the covariance of intensity values between the nonredundant photodiode baselines can be used to measure the turbulence profile from the ground up to a height determined by the furthest pair of detectors the six channel lunar scintillometer that has been developed at the indian institute of astrophysics is based closely on an instrument built by the team led by andrei tokovinin of cerro tololo interamerican observatory ctio chile we have fabricated the instrument based on the existing electronic design and have worked on the noise analysis an emi electromagnetic induction resistant pcb design and the software pipeline for analyzing the data from the same the results from the instruments multiyear campaign at mount saraswati hanle is also presented | [['ground', 'layer', 'turbulence', 'is', 'a', 'very', 'important', 'site', 'characterization', 'parameter', 'used', 'to', 'assess', 'the', 'quality', 'of', 'an', 'astronomical', 'site', 'the', 'lunar', 'scintillometer', 'is', 'a', 'simple', 'and', 'effective', 'sitetesting', 'device', 'for', 'measuring', 'the', 'ground', 'layer', 'turbulence', 'it', 'consists', 'of', 'a', 'linear', 'array', 'of', 'photodiodes', 'which', 'are', 'sensitive', 'to', 'the', 'slight', 'variations', 'in', 'the', 'moons', 'brightness', 'due', 'to', 'scintillation', 'by', 'the', 'lower', 'layers', 'of', 'the', 'earths', 'atmosphere', 'the', 'covariance', 'of', 'intensity', 'values', 'between', 'the', 'nonredundant', 'photodiode', 'baselines', 'can', 'be', 'used', 'to', 'measure', 'the', 'turbulence', 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1,802.00373 | EMG Pattern Classification to Control a Hand Orthosis for Functional
Grasp Assistance after Stroke | Wearable orthoses can function both as assistive devices, which allow the
user to live independently, and as rehabilitation devices, which allow the user
to regain use of an impaired limb. To be fully wearable, such devices must have
intuitive controls, and to improve quality of life, the device should enable
the user to perform Activities of Daily Living. In this context, we explore the
feasibility of using electromyography (EMG) signals to control a wearable
exotendon device to enable pick and place tasks. We use an easy to don,
commodity forearm EMG band with 8 sensors to create an EMG pattern
classification control for an exotendon device. With this control, we are able
to detect a user's intent to open, and can thus enable extension and pick and
place tasks. In experiments with stroke survivors, we explore the accuracy of
this control in both non-functional and functional tasks. Our results support
the feasibility of developing wearable devices with intuitive controls which
provide a functional context for rehabilitation.
| cs.RO cs.HC | wearable orthoses can function both as assistive devices which allow the user to live independently and as rehabilitation devices which allow the user to regain use of an impaired limb to be fully wearable such devices must have intuitive controls and to improve quality of life the device should enable the user to perform activities of daily living in this context we explore the feasibility of using electromyography emg signals to control a wearable exotendon device to enable pick and place tasks we use an easy to don commodity forearm emg band with 8 sensors to create an emg pattern classification control for an exotendon device with this control we are able to detect a users intent to open and can thus enable extension and pick and place tasks in experiments with stroke survivors we explore the accuracy of this control in both nonfunctional and functional tasks our results support the feasibility of developing wearable devices with intuitive controls which provide a functional context for rehabilitation | [['wearable', 'orthoses', 'can', 'function', 'both', 'as', 'assistive', 'devices', 'which', 'allow', 'the', 'user', 'to', 'live', 'independently', 'and', 'as', 'rehabilitation', 'devices', 'which', 'allow', 'the', 'user', 'to', 'regain', 'use', 'of', 'an', 'impaired', 'limb', 'to', 'be', 'fully', 'wearable', 'such', 'devices', 'must', 'have', 'intuitive', 'controls', 'and', 'to', 'improve', 'quality', 'of', 'life', 'the', 'device', 'should', 'enable', 'the', 'user', 'to', 'perform', 'activities', 'of', 'daily', 'living', 'in', 'this', 'context', 'we', 'explore', 'the', 'feasibility', 'of', 'using', 'electromyography', 'emg', 'signals', 'to', 'control', 'a', 'wearable', 'exotendon', 'device', 'to', 'enable', 'pick', 'and', 'place', 'tasks', 'we', 'use', 'an', 'easy', 'to', 'don', 'commodity', 'forearm', 'emg', 'band', 'with', '8', 'sensors', 'to', 'create', 'an', 'emg', 'pattern', 'classification', 'control', 'for', 'an', 'exotendon', 'device', 'with', 'this', 'control', 'we', 'are', 'able', 'to', 'detect', 'a', 'users', 'intent', 'to', 'open', 'and', 'can', 'thus', 'enable', 'extension', 'and', 'pick', 'and', 'place', 'tasks', 'in', 'experiments', 'with', 'stroke', 'survivors', 'we', 'explore', 'the', 'accuracy', 'of', 'this', 'control', 'in', 'both', 'nonfunctional', 'and', 'functional', 'tasks', 'our', 'results', 'support', 'the', 'feasibility', 'of', 'developing', 'wearable', 'devices', 'with', 'intuitive', 'controls', 'which', 'provide', 'a', 'functional', 'context', 'for', 'rehabilitation']] | [-0.08479409050512292, 0.037294293761256196, -0.08649311329539093, 0.0028647511932010784, -0.16996401241446688, -0.19389555165146635, 0.091646173026231, 0.43204634002886894, -0.23113878640106122, -0.3637386018382996, 0.11547407703317997, -0.27061155992673663, -0.19966841671933852, 0.24825762064911697, -0.17798168501368064, 0.05678238123712107, 0.041049312164498745, 0.05058891960670291, 0.0061525169635055265, -0.24322141314396725, 0.20777911837099167, 0.04865751015135973, 0.29275322950831273, 0.07075095385392537, 0.07447576413936231, 0.036022143853010564, 0.01763051864123199, -0.03933164208457328, -0.06384612940160966, 0.16188209934625775, 0.3751582008056774, 0.17262733133975416, 0.3315130566678396, -0.5188472131664705, -0.19248557959331153, 0.06563093199780802, 0.13670077963402813, 0.04617016995964549, -0.06959462706453917, -0.36098814647781047, 0.14576823957457502, -0.196664771097769, -0.08480026300608964, -0.12648838646596344, -0.017339872192235085, 0.031085118444114015, -0.30198003803436624, -0.03382670224740783, -0.029843902800277603, 0.09625946484483415, -0.07790413998506066, -0.010466423470572365, 0.03928973577013693, 0.2827365142094517, 0.021504696420956086, 0.007134849449801372, 0.238061209706158, -0.1391866769905702, -0.16177246077894802, 0.35226339397088785, 0.022651900892236794, -0.202114480184164, 0.23467027447640715, -0.08034005371297187, -0.09179192983613509, 0.03998103799162114, 0.27138504606001534, 0.07541233129805044, -0.1943272407246163, -0.025474243552108842, 0.06250078594255284, 0.18923941125352187, 0.021003392955540996, 0.03158461256378626, 0.20724051918198422, 0.20299110584040514, 0.07914557351827303, 0.10328086921107592, -0.09556760247683198, 0.015418192415736706, -0.216300772014287, -0.19003962771967053, -0.11659528736433969, 0.0011352044161091128, -0.02832067871074797, -0.12562229885242698, 0.39009302938016266, 0.23473746103955795, 0.16249081720711617, 0.06856644899433866, 0.33989965475005346, 0.06129821149345555, 0.13786041582991346, 0.03262868978753232, 0.17593592765922772, 0.015115377659307474, 0.18663145412077628, -0.18498271191492677, 0.06607623556174519, -0.043280260371918816] |
1,802.00374 | Multiparticle azimuthal cumulants in p+Pb collisions from a multiphase
transport model | A new subevent cumulant method was recently developed, which can
significantly reduce the non-flow contributions in long-range correlations for
small systems compared to the standard cumulant method. In this work, we study
multi-particle cumulants in $p$+Pb collisions at $\sqrt{s_{\mathrm{NN}}} =
5.02$ TeV with a multiphase transport model (AMPT), including two- and
four-particle cumulants ($c_{2}\{2\}$ and $c_{2}\{4\}$) and symmetric cumulants
[SC(2, 3) and SC(2, 4)]. Our numerical results show that $v_{2}\{2\}$ is
consistent with the experimental data, while the magnitude of $c_{2}\{4\}$ is
smaller than the experimental data, which may indicate either the collectivity
is underestimated or some dynamical fluctuations are absent in the AMPT model.
For the symmetric cumulants, we find that the results from the standard
cumulant method are consistent with the experimental data, but those from the
subevent cumulant method show different behaviors. The results indicate that
the measurements from the standard cumulant method are contaminated by non-flow
effects, especially when the number of produced particles is small. The
subevent cumulant method is a better tool to explore the $real$ collectivity in
small systems.
| hep-ph nucl-ex nucl-th | a new subevent cumulant method was recently developed which can significantly reduce the nonflow contributions in longrange correlations for small systems compared to the standard cumulant method in this work we study multiparticle cumulants in ppb collisions at sqrts_mathrmnn 502 tev with a multiphase transport model ampt including two and fourparticle cumulants c_22 and c_24 and symmetric cumulants sc2 3 and sc2 4 our numerical results show that v_22 is consistent with the experimental data while the magnitude of c_24 is smaller than the experimental data which may indicate either the collectivity is underestimated or some dynamical fluctuations are absent in the ampt model for the symmetric cumulants we find that the results from the standard cumulant method are consistent with the experimental data but those from the subevent cumulant method show different behaviors the results indicate that the measurements from the standard cumulant method are contaminated by nonflow effects especially when the number of produced particles is small the subevent cumulant method is a better tool to explore the real collectivity in small systems | [['a', 'new', 'subevent', 'cumulant', 'method', 'was', 'recently', 'developed', 'which', 'can', 'significantly', 'reduce', 'the', 'nonflow', 'contributions', 'in', 'longrange', 'correlations', 'for', 'small', 'systems', 'compared', 'to', 'the', 'standard', 'cumulant', 'method', 'in', 'this', 'work', 'we', 'study', 'multiparticle', 'cumulants', 'in', 'ppb', 'collisions', 'at', 'sqrts_mathrmnn', '502', 'tev', 'with', 'a', 'multiphase', 'transport', 'model', 'ampt', 'including', 'two', 'and', 'fourparticle', 'cumulants', 'c_22', 'and', 'c_24', 'and', 'symmetric', 'cumulants', 'sc2', '3', 'and', 'sc2', '4', 'our', 'numerical', 'results', 'show', 'that', 'v_22', 'is', 'consistent', 'with', 'the', 'experimental', 'data', 'while', 'the', 'magnitude', 'of', 'c_24', 'is', 'smaller', 'than', 'the', 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1,802.00375 | Monotone level-sets on arbitrary meshes without redistancing | In this paper we present approaches that address two issues that can occur
when the level-set method is used to simulate two-fluid flows in engineering
practice. The first issue concerns regularizing the Heaviside function on
arbitrary meshes. We show that the regularized Heaviside function can be
non-smooth on non-uniform meshes. Alternative regularizing definitions that are
indeed smooth and monotonic, are introduced. These new definitions lead to
smooth Heaviside functions by taking the changing local meshsize into account.
The second issue is the computational cost and fragility caused by the
necessity of redistancing the level-set field. In previous papers it is shown
that strongly coupling the level-set convection with the flow solver provides
robustness and potentially efficiency and accuracy advantages. The next step
would be to include redistancing within the strong coupling part of the
algorithm. The computational cost of current redistancing procedure prohibit
this. Four alternative approaches for circumventing the expensive redistancing
step are proposed. This should facilitate a fully coupled level-set approach.
Some benchmark cases demonstrate the efficacy of the proposed approaches. These
includes the standard test case of the vortex in a box. Based on these results
the most favorable redistancing approach is selected.
| math.NA | in this paper we present approaches that address two issues that can occur when the levelset method is used to simulate twofluid flows in engineering practice the first issue concerns regularizing the heaviside function on arbitrary meshes we show that the regularized heaviside function can be nonsmooth on nonuniform meshes alternative regularizing definitions that are indeed smooth and monotonic are introduced these new definitions lead to smooth heaviside functions by taking the changing local meshsize into account the second issue is the computational cost and fragility caused by the necessity of redistancing the levelset field in previous papers it is shown that strongly coupling the levelset convection with the flow solver provides robustness and potentially efficiency and accuracy advantages the next step would be to include redistancing within the strong coupling part of the algorithm the computational cost of current redistancing procedure prohibit this four alternative approaches for circumventing the expensive redistancing step are proposed this should facilitate a fully coupled levelset approach some benchmark cases demonstrate the efficacy of the proposed approaches these includes the standard test case of the vortex in a box based on these results the most favorable redistancing approach is selected | [['in', 'this', 'paper', 'we', 'present', 'approaches', 'that', 'address', 'two', 'issues', 'that', 'can', 'occur', 'when', 'the', 'levelset', 'method', 'is', 'used', 'to', 'simulate', 'twofluid', 'flows', 'in', 'engineering', 'practice', 'the', 'first', 'issue', 'concerns', 'regularizing', 'the', 'heaviside', 'function', 'on', 'arbitrary', 'meshes', 'we', 'show', 'that', 'the', 'regularized', 'heaviside', 'function', 'can', 'be', 'nonsmooth', 'on', 'nonuniform', 'meshes', 'alternative', 'regularizing', 'definitions', 'that', 'are', 'indeed', 'smooth', 'and', 'monotonic', 'are', 'introduced', 'these', 'new', 'definitions', 'lead', 'to', 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1,802.00376 | Moment Analysis of Stochastic Hybrid Systems Using Semidefinite
Programming | This paper proposes a semidefinite programming based method for estimating
moments of a stochastic hybrid system (SHS). For polynomial SHSs -- which
consist of polynomial continuous vector fields, reset maps, and transition
intensities -- the dynamics of moments evolve according to a system of linear
ordinary differential equations. However, it is generally not possible to solve
the system exactly since time evolution of a specific moment may depend upon
moments of order higher than it. One way to overcome this problem is to employ
so-called moment closure methods that give point approximations to moments, but
these are limited in that accuracy of the estimations is unknown. We find lower
and upper bounds on a moment of interest via a semidefinite program that
includes linear constraints obtained from moment dynamics, along with
semidefinite constraints that arise from the non-negativity of moment matrices.
These bounds are further shown to improve as the size of semidefinite program
is increased. The key insight in the method is a reduction from stochastic
hybrid systems with multiple discrete modes to a single-mode hybrid system with
algebraic constraints. We further extend the scope of the proposed method to a
class of non-polynomial SHSs which can be recast to polynomial SHSs via
augmentation of additional states. Finally, we illustrate the applicability of
results via examples of SHSs drawn from different disciplines.
| math.OC | this paper proposes a semidefinite programming based method for estimating moments of a stochastic hybrid system shs for polynomial shss which consist of polynomial continuous vector fields reset maps and transition intensities the dynamics of moments evolve according to a system of linear ordinary differential equations however it is generally not possible to solve the system exactly since time evolution of a specific moment may depend upon moments of order higher than it one way to overcome this problem is to employ socalled moment closure methods that give point approximations to moments but these are limited in that accuracy of the estimations is unknown we find lower and upper bounds on a moment of interest via a semidefinite program that includes linear constraints obtained from moment dynamics along with semidefinite constraints that arise from the nonnegativity of moment matrices these bounds are further shown to improve as the size of semidefinite program is increased the key insight in the method is a reduction from stochastic hybrid systems with multiple discrete modes to a singlemode hybrid system with algebraic constraints we further extend the scope of the proposed method to a class of nonpolynomial shss which can be recast to polynomial shss via augmentation of additional states finally we illustrate the applicability of results via examples of shss drawn from different disciplines | [['this', 'paper', 'proposes', 'a', 'semidefinite', 'programming', 'based', 'method', 'for', 'estimating', 'moments', 'of', 'a', 'stochastic', 'hybrid', 'system', 'shs', 'for', 'polynomial', 'shss', 'which', 'consist', 'of', 'polynomial', 'continuous', 'vector', 'fields', 'reset', 'maps', 'and', 'transition', 'intensities', 'the', 'dynamics', 'of', 'moments', 'evolve', 'according', 'to', 'a', 'system', 'of', 'linear', 'ordinary', 'differential', 'equations', 'however', 'it', 'is', 'generally', 'not', 'possible', 'to', 'solve', 'the', 'system', 'exactly', 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1,802.00377 | Stable CMC integral varifolds of codimension $1$: regularity and
compactness | We give two structural conditions on a codimension $1$ integral $n$-varifold
with first variation locally summable to an exponent $p>n$ that imply the
following: whenever each orientable portion of the $C^{1}$-embedded part of the
varifold (which is non-empty by the Allard regularity theory) is stationarity
and the $C^{2}$-immersed part of it is stable with respect to the area
functional for volume preserving deformations, its support, except possibly on
a closed set of codimension $7$, is an immersed constant-mean-curvature (cmc)
hypersurface of class $C^{2}$ that can fail to be embedded only at points where
locally the support is the union of two $C^{2}$ embedded cmc disks with only
tangential intersection. Both structural conditions are necessary for the
conclusions and involve only those parts of the varifold that are made up of
embedded $C^{1, \alpha}$-regular pieces coming together in a regular fashion,
making them easy to check in principle. We show also that any family of
codimension 1 integral varifolds satisfying these structural and variational
hypotheses as well as locally uniform mass and mean curvature bounds is compact
in the varifold topology. Our results generalize both the regularity theory of
the second author (for stable minimal hypersurfaces) and the regularity theory
of Schoen--Simon, for hypersurfaces satisfying a priori a smallness hypothesis
on the singular set in addition to the variational hypotheses). Corollaries of
the main varifold regularity theorem are obtained for sets of locally finite
perimeter, which generalize the regularity theory of
Gonzalez--Massari--Tamanini for boundaries that locally minimize perimeter
subject to the fixed enclosed volume constraint.
| math.DG math.AP | we give two structural conditions on a codimension 1 integral nvarifold with first variation locally summable to an exponent pn that imply the following whenever each orientable portion of the c1embedded part of the varifold which is nonempty by the allard regularity theory is stationarity and the c2immersed part of it is stable with respect to the area functional for volume preserving deformations its support except possibly on a closed set of codimension 7 is an immersed constantmeancurvature cmc hypersurface of class c2 that can fail to be embedded only at points where locally the support is the union of two c2 embedded cmc disks with only tangential intersection both structural conditions are necessary for the conclusions and involve only those parts of the varifold that are made up of embedded c1 alpharegular pieces coming together in a regular fashion making them easy to check in principle we show also that any family of codimension 1 integral varifolds satisfying these structural and variational hypotheses as well as locally uniform mass and mean curvature bounds is compact in the varifold topology our results generalize both the regularity theory of the second author for stable minimal hypersurfaces and the regularity theory of schoensimon for hypersurfaces satisfying a priori a smallness hypothesis on the singular set in addition to the variational hypotheses corollaries of the main varifold regularity theorem are obtained for sets of locally finite perimeter which generalize the regularity theory of gonzalezmassaritamanini for boundaries that locally minimize perimeter subject to the fixed enclosed volume constraint | [['we', 'give', 'two', 'structural', 'conditions', 'on', 'a', 'codimension', '1', 'integral', 'nvarifold', 'with', 'first', 'variation', 'locally', 'summable', 'to', 'an', 'exponent', 'pn', 'that', 'imply', 'the', 'following', 'whenever', 'each', 'orientable', 'portion', 'of', 'the', 'c1embedded', 'part', 'of', 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1,802.00378 | The influence of a sub-stellar continent on the climate of a
tidally-locked exoplanet | Previous studies have demonstrated that continental carbon-silicate
weathering is important to the continued habitability of a terrestrial planet.
Despite this, few studies have considered the influence of land on the climate
of a tidally-locked planet. In this work we use the Met Office Unified Model,
coupled to a land surface model, to investigate the climate effects of a
continent located at the sub-stellar point. We choose to use the orbital and
planetary parameters of Proxima Centauri B as a template, to allow comparison
with the work of others. A region of the surface where $T_{\text{s}} >
273.15\,\text{K}$ is always retained, and previous conclusions on the
habitability of Proxima Centauri B remain intact. We find that sub-stellar land
causes global cooling, and increases day-night temperature contrasts by
limiting heat redistribution. Furthermore, we find that sub-stellar land is
able to introduce a regime change in the atmospheric circulation. Specifically,
when a continent offset to the east of the sub-stellar point is introduced, we
observe the formation of two mid-latitude counterrotating jets, and a
substantially weakened equatorial superrotating jet.
| astro-ph.EP | previous studies have demonstrated that continental carbonsilicate weathering is important to the continued habitability of a terrestrial planet despite this few studies have considered the influence of land on the climate of a tidallylocked planet in this work we use the met office unified model coupled to a land surface model to investigate the climate effects of a continent located at the substellar point we choose to use the orbital and planetary parameters of proxima centauri b as a template to allow comparison with the work of others a region of the surface where t_texts 27315textk is always retained and previous conclusions on the habitability of proxima centauri b remain intact we find that substellar land causes global cooling and increases daynight temperature contrasts by limiting heat redistribution furthermore we find that substellar land is able to introduce a regime change in the atmospheric circulation specifically when a continent offset to the east of the substellar point is introduced we observe the formation of two midlatitude counterrotating jets and a substantially weakened equatorial superrotating jet | [['previous', 'studies', 'have', 'demonstrated', 'that', 'continental', 'carbonsilicate', 'weathering', 'is', 'important', 'to', 'the', 'continued', 'habitability', 'of', 'a', 'terrestrial', 'planet', 'despite', 'this', 'few', 'studies', 'have', 'considered', 'the', 'influence', 'of', 'land', 'on', 'the', 'climate', 'of', 'a', 'tidallylocked', 'planet', 'in', 'this', 'work', 'we', 'use', 'the', 'met', 'office', 'unified', 'model', 'coupled', 'to', 'a', 'land', 'surface', 'model', 'to', 'investigate', 'the', 'climate', 'effects', 'of', 'a', 'continent', 'located', 'at', 'the', 'substellar', 'point', 'we', 'choose', 'to', 'use', 'the', 'orbital', 'and', 'planetary', 'parameters', 'of', 'proxima', 'centauri', 'b', 'as', 'a', 'template', 'to', 'allow', 'comparison', 'with', 'the', 'work', 'of', 'others', 'a', 'region', 'of', 'the', 'surface', 'where', 't_texts', '27315textk', 'is', 'always', 'retained', 'and', 'previous', 'conclusions', 'on', 'the', 'habitability', 'of', 'proxima', 'centauri', 'b', 'remain', 'intact', 'we', 'find', 'that', 'substellar', 'land', 'causes', 'global', 'cooling', 'and', 'increases', 'daynight', 'temperature', 'contrasts', 'by', 'limiting', 'heat', 'redistribution', 'furthermore', 'we', 'find', 'that', 'substellar', 'land', 'is', 'able', 'to', 'introduce', 'a', 'regime', 'change', 'in', 'the', 'atmospheric', 'circulation', 'specifically', 'when', 'a', 'continent', 'offset', 'to', 'the', 'east', 'of', 'the', 'substellar', 'point', 'is', 'introduced', 'we', 'observe', 'the', 'formation', 'of', 'two', 'midlatitude', 'counterrotating', 'jets', 'and', 'a', 'substantially', 'weakened', 'equatorial', 'superrotating', 'jet']] | [-0.11561614122629338, 0.16666122223923488, -0.06275578329172739, 0.0612946419513682, -0.09342881351590931, -0.07118696900558351, 0.13741239440099826, 0.3390013891934401, -0.18735340625758287, -0.3037819571448544, 0.09361414055103123, -0.24949809716411495, -0.13118557128624592, 0.17516217753560298, -0.1338062575102092, 0.006578339890959118, 0.11203225735525164, -0.029642743942720783, -0.02506862625020766, -0.2305810827091659, 0.28900418350085444, 0.07297048728503933, 0.12415342527102528, 0.0747369931030997, 0.048777012832764255, -0.07978744074167964, -0.0280564292683939, -0.04593448012288676, -0.19768983743625734, 0.03538163941934963, 0.24945942073457503, 0.10593737356601596, 0.2704138084979441, -0.4017657953492134, -0.28293212508578175, 0.08096988223973564, 0.11814571302814808, 0.028280045650091904, -0.032606413955342646, -0.22370660593369815, 0.030761271853112976, -0.21113115073197838, -0.16470271311942597, 0.025602523665444528, 0.05178047303174962, -0.019727143522949533, -0.2707894553155827, 0.07539195790207229, 0.08897462098272463, 0.15118682853920612, -0.13217871250501279, -0.12176667354634904, -0.12236472406435349, 0.1441546158181743, 0.08044335247566546, 0.05931734392753226, 0.20808789101994538, -0.09952012030340494, -0.01628476530252929, 0.40471142259119564, -0.09546692762658474, -0.11547370460907246, 0.2745610016500416, -0.24814181937970695, -0.1326219483308637, 0.09588916813470208, 0.1922927614183009, 0.11065036260302184, -0.12824451714739638, -0.0011560615788703795, -0.06965555629095418, 0.15033583740489773, 0.0896124329681729, -0.0313236120929457, 0.333955739159137, 0.1822268854371794, 0.12763773494082464, 0.09346415562221425, -0.2401320878823417, -0.0946133532184526, -0.16274263047091017, -0.13710932901386183, -0.10943799019075198, 0.01561049378485112, -0.03469822281195023, -0.15479734816959914, 0.3971285105634459, 0.21497012866725554, 0.1700590511950842, -0.00013250629437785877, 0.3051532330085669, 0.04156467941054008, 0.06637842412513137, 0.10054872028066675, 0.31250685621510566, 0.08478990372814066, 0.13263588169901874, -0.2593704870447107, 0.10793040314490095, -0.009034226737335066] |
1,802.00379 | Synthetic lattices, flat bands and localization in Rydberg quantum
simulators | The most recent manifestation of cold Rydberg atom quantum simulators that
employs tailored optical tweezer arrays enables the study of many-body dynamics
under so-called facilitation conditions. We show how the facilitation mechanism
yields a Hilbert space structure in which the many-body states organize into
synthetic lattices, which feature in general one or several flat bands and may
support immobile localized states. We focus our discussion on the case of a
ladder lattice geometry for which we analyze in particular the influence of
disorder generated by the uncertainty of the atomic positions. The localization
properties of this system are characterized through two localization lengths
which are found to display anomalous scaling behavior at certain energies.
Moreover, we discuss the experimental preparation of an immobile localized
state, and analyze disorder-induced propagation effects.
| quant-ph cond-mat.stat-mech physics.atom-ph | the most recent manifestation of cold rydberg atom quantum simulators that employs tailored optical tweezer arrays enables the study of manybody dynamics under socalled facilitation conditions we show how the facilitation mechanism yields a hilbert space structure in which the manybody states organize into synthetic lattices which feature in general one or several flat bands and may support immobile localized states we focus our discussion on the case of a ladder lattice geometry for which we analyze in particular the influence of disorder generated by the uncertainty of the atomic positions the localization properties of this system are characterized through two localization lengths which are found to display anomalous scaling behavior at certain energies moreover we discuss the experimental preparation of an immobile localized state and analyze disorderinduced propagation effects | [['the', 'most', 'recent', 'manifestation', 'of', 'cold', 'rydberg', 'atom', 'quantum', 'simulators', 'that', 'employs', 'tailored', 'optical', 'tweezer', 'arrays', 'enables', 'the', 'study', 'of', 'manybody', 'dynamics', 'under', 'socalled', 'facilitation', 'conditions', 'we', 'show', 'how', 'the', 'facilitation', 'mechanism', 'yields', 'a', 'hilbert', 'space', 'structure', 'in', 'which', 'the', 'manybody', 'states', 'organize', 'into', 'synthetic', 'lattices', 'which', 'feature', 'in', 'general', 'one', 'or', 'several', 'flat', 'bands', 'and', 'may', 'support', 'immobile', 'localized', 'states', 'we', 'focus', 'our', 'discussion', 'on', 'the', 'case', 'of', 'a', 'ladder', 'lattice', 'geometry', 'for', 'which', 'we', 'analyze', 'in', 'particular', 'the', 'influence', 'of', 'disorder', 'generated', 'by', 'the', 'uncertainty', 'of', 'the', 'atomic', 'positions', 'the', 'localization', 'properties', 'of', 'this', 'system', 'are', 'characterized', 'through', 'two', 'localization', 'lengths', 'which', 'are', 'found', 'to', 'display', 'anomalous', 'scaling', 'behavior', 'at', 'certain', 'energies', 'moreover', 'we', 'discuss', 'the', 'experimental', 'preparation', 'of', 'an', 'immobile', 'localized', 'state', 'and', 'analyze', 'disorderinduced', 'propagation', 'effects']] | [-0.16508524360027738, 0.21107135247875702, -0.06653458720001464, 0.06790218713173929, 0.006437249146760083, -0.14559282436966897, 0.038344092797846174, 0.4078790991925276, -0.25495224028530244, -0.22384900805594113, 0.05404807942507502, -0.2631224039798746, -0.17114908451823374, 0.1684178368958573, 0.026159267799924307, 0.028243265657846888, 0.054107523150742055, 0.002566160227601918, -0.047366800379509535, -0.20962465897274132, 0.33238122895216715, 0.03915679554651993, 0.3286346939392388, 0.07883562649949453, 0.04629684020048724, 0.03488541181879835, 0.03903831970663025, 0.010058098004083148, -0.11608755138479934, 0.1376022642505212, 0.21796409446799841, 0.02230180905630382, 0.24231804918963462, -0.4825391457917599, -0.23424008709396452, 0.05550391269991031, 0.1467074995788817, 0.1810018811124162, -0.0519150806349129, -0.3534673236579133, -0.014228644515745915, -0.1310023034063096, -0.15197069765999913, -0.11670875224159458, -0.00281405126174482, 0.018425666623247357, -0.2172485373488878, 0.05699732937276936, 0.059817375294649255, 0.05933371292283902, -0.08523270001527496, -0.04957939022972893, -0.0028841041010589552, 0.11264923570426898, -0.021347662880837632, -0.0598362170267277, 0.1523523549656742, -0.12561512669870772, -0.1456624835335578, 0.39597378112375736, -0.041604389593703675, -0.16752509657615938, 0.22637842527519053, -0.14389507177066452, -0.1142746555332381, 0.1073957472269495, 0.17099107515711623, 0.0859831835465649, -0.11063257255904878, 0.057478030798777655, -0.03634994960784053, 0.17178072975411152, 0.042619603077093, 0.14006372211509957, 0.21296227837984377, 0.1762161804882523, 0.051165059589010735, 0.1878682408392286, -0.11500531621456433, -0.1521772613032506, -0.27432778655532347, -0.11360860864560192, -0.191175499271888, 0.046675814210007396, -0.04391248307455009, -0.19024106062805424, 0.4140764905605465, 0.17036178059822235, 0.21952233912709815, -0.01716963777032036, 0.2206007507414772, 0.08456738566567834, 0.027374717335288342, 0.0409795991019704, 0.23018908272318256, 0.09274595039538466, 0.047000497665542824, -0.2799489825695323, 0.03590187981026247, 0.06987933528681214] |
1,802.0038 | Approximate Message Passing for Underdetermined Audio Source Separation | Approximate message passing (AMP) algorithms have shown great promise in
sparse signal reconstruction due to their low computational requirements and
fast convergence to an exact solution. Moreover, they provide a probabilistic
framework that is often more intuitive than alternatives such as convex
optimisation. In this paper, AMP is used for audio source separation from
underdetermined instantaneous mixtures. In the time-frequency domain, it is
typical to assume a priori that the sources are sparse, so we solve the
corresponding sparse linear inverse problem using AMP. We present a block-based
approach that uses AMP to process multiple time-frequency points
simultaneously. Two algorithms known as AMP and vector AMP (VAMP) are evaluated
in particular. Results show that they are promising in terms of artefact
suppression.
| cs.SD eess.AS | approximate message passing amp algorithms have shown great promise in sparse signal reconstruction due to their low computational requirements and fast convergence to an exact solution moreover they provide a probabilistic framework that is often more intuitive than alternatives such as convex optimisation in this paper amp is used for audio source separation from underdetermined instantaneous mixtures in the timefrequency domain it is typical to assume a priori that the sources are sparse so we solve the corresponding sparse linear inverse problem using amp we present a blockbased approach that uses amp to process multiple timefrequency points simultaneously two algorithms known as amp and vector amp vamp are evaluated in particular results show that they are promising in terms of artefact suppression | [['approximate', 'message', 'passing', 'amp', 'algorithms', 'have', 'shown', 'great', 'promise', 'in', 'sparse', 'signal', 'reconstruction', 'due', 'to', 'their', 'low', 'computational', 'requirements', 'and', 'fast', 'convergence', 'to', 'an', 'exact', 'solution', 'moreover', 'they', 'provide', 'a', 'probabilistic', 'framework', 'that', 'is', 'often', 'more', 'intuitive', 'than', 'alternatives', 'such', 'as', 'convex', 'optimisation', 'in', 'this', 'paper', 'amp', 'is', 'used', 'for', 'audio', 'source', 'separation', 'from', 'underdetermined', 'instantaneous', 'mixtures', 'in', 'the', 'timefrequency', 'domain', 'it', 'is', 'typical', 'to', 'assume', 'a', 'priori', 'that', 'the', 'sources', 'are', 'sparse', 'so', 'we', 'solve', 'the', 'corresponding', 'sparse', 'linear', 'inverse', 'problem', 'using', 'amp', 'we', 'present', 'a', 'blockbased', 'approach', 'that', 'uses', 'amp', 'to', 'process', 'multiple', 'timefrequency', 'points', 'simultaneously', 'two', 'algorithms', 'known', 'as', 'amp', 'and', 'vector', 'amp', 'vamp', 'are', 'evaluated', 'in', 'particular', 'results', 'show', 'that', 'they', 'are', 'promising', 'in', 'terms', 'of', 'artefact', 'suppression']] | [-0.07024195362225968, -0.004380362402131499, -0.11336037824235734, 0.09115679712675821, -0.11957639619730963, -0.19916420385669, 0.008438300867145117, 0.45220455138745613, -0.33016307116104443, -0.2754117481899066, 0.15514978286848388, -0.21787075449514096, -0.20630919000469758, 0.19231720121966706, -0.11393057956116, 0.14264899901435024, 0.10788744074658903, 0.051030942206662225, -0.08543120012556576, -0.21613097698504075, 0.17846643174311422, 0.06505755171729405, 0.31546376905877327, -0.03904430675473003, 0.11790157048714912, 0.00722827606254303, 0.019827793462995867, -0.011288041031354518, -0.026426058143547156, 0.11652096566175431, 0.361476966429914, 0.24935660573852356, 0.2808124726050396, -0.4436187010533253, -0.20365849217461024, 0.13280017774639896, 0.23617584841921316, 0.11871676595851047, -0.10262923233831764, -0.2646663163666476, 0.14500301799233087, -0.1453704091979832, -0.017061640997035582, -0.11636523723785507, -0.02826592284178392, 0.04132339177027223, -0.3327037947687519, 0.08174909284094074, 0.08043353878663945, -0.007500563229083038, -0.025269109372156442, -0.14137223376281804, 0.08734461912870041, 0.05307126074998838, 0.07840335757837089, 0.03322679896411471, 0.07911173625253752, -0.07843281389557619, -0.09327626679107913, 0.35898344897375, -0.020865598073840853, -0.28220834117382765, 0.22088519240477594, -0.029086449901100066, -0.14980767177776663, 0.1761342388364013, 0.23619843562912257, 0.1264306040915859, -0.16982665011414982, 0.07444919573193698, -0.04405209609902785, 0.17318703575426195, 0.06097079253279352, 0.025109139206193266, 0.13630788571002786, 0.14742458868031313, 0.10408097166819956, 0.15390513514332688, -0.08500481974791552, -0.08056932609894725, -0.2319784419516628, -0.10137846229739152, -0.24124640333237218, -0.05101971007639267, -0.12304385693445152, -0.16965044636043652, 0.34258084415961976, 0.19759665265465615, 0.16437443135092494, 0.06924517469511168, 0.3667137207306891, 0.1022414583541056, -0.004138286335710588, 0.15249009880229647, 0.23376796615441697, 0.12681325173509292, 0.09031774810148922, -0.1475538258902637, 0.08046140134349831, 0.05718369259819633] |
1,802.00381 | Signal-plus-noise matrix models: eigenvector deviations and fluctuations | Estimating eigenvectors and low-dimensional subspaces is of central
importance for numerous problems in statistics, computer science, and applied
mathematics. This paper characterizes the behavior of perturbed eigenvectors
for a range of signal-plus-noise matrix models encountered in both statistical
and random matrix theoretic settings. We prove both first-order approximation
results (i.e. sharp deviations) as well as second-order distributional limit
theory (i.e. fluctuations). The concise methodology considered in this paper
synthesizes tools rooted in two core concepts, namely (i) deterministic
decompositions of matrix perturbations and (ii) probabilistic matrix
concentration phenomena. We illustrate our theoretical results via simulation
examples involving stochastic block model random graphs.
| math.ST stat.TH | estimating eigenvectors and lowdimensional subspaces is of central importance for numerous problems in statistics computer science and applied mathematics this paper characterizes the behavior of perturbed eigenvectors for a range of signalplusnoise matrix models encountered in both statistical and random matrix theoretic settings we prove both firstorder approximation results ie sharp deviations as well as secondorder distributional limit theory ie fluctuations the concise methodology considered in this paper synthesizes tools rooted in two core concepts namely i deterministic decompositions of matrix perturbations and ii probabilistic matrix concentration phenomena we illustrate our theoretical results via simulation examples involving stochastic block model random graphs | [['estimating', 'eigenvectors', 'and', 'lowdimensional', 'subspaces', 'is', 'of', 'central', 'importance', 'for', 'numerous', 'problems', 'in', 'statistics', 'computer', 'science', 'and', 'applied', 'mathematics', 'this', 'paper', 'characterizes', 'the', 'behavior', 'of', 'perturbed', 'eigenvectors', 'for', 'a', 'range', 'of', 'signalplusnoise', 'matrix', 'models', 'encountered', 'in', 'both', 'statistical', 'and', 'random', 'matrix', 'theoretic', 'settings', 'we', 'prove', 'both', 'firstorder', 'approximation', 'results', 'ie', 'sharp', 'deviations', 'as', 'well', 'as', 'secondorder', 'distributional', 'limit', 'theory', 'ie', 'fluctuations', 'the', 'concise', 'methodology', 'considered', 'in', 'this', 'paper', 'synthesizes', 'tools', 'rooted', 'in', 'two', 'core', 'concepts', 'namely', 'i', 'deterministic', 'decompositions', 'of', 'matrix', 'perturbations', 'and', 'ii', 'probabilistic', 'matrix', 'concentration', 'phenomena', 'we', 'illustrate', 'our', 'theoretical', 'results', 'via', 'simulation', 'examples', 'involving', 'stochastic', 'block', 'model', 'random', 'graphs']] | [-0.05786552899014935, 0.07724435863943369, -0.04433340418572519, 0.11542862260545257, -0.043100511045743, -0.128042132424775, 0.019339453845567928, 0.3207542414722197, -0.322840472318086, -0.25625420260864, 0.11840923413104724, -0.28042072434361803, -0.25223812624337333, 0.17461177392397076, -0.08361866465066652, 0.10960892873688363, 0.08136259144464252, -0.0017331492968414928, -0.09834420907781367, -0.19072693427476814, 0.2887214106261073, 0.006280379741927427, 0.2944349840137304, 0.001860589345953628, 0.08846896393315903, 0.04195557841939815, -0.054979532135321814, 0.05490833842172744, -0.1223419954653318, 0.127585938072526, 0.33728847356588615, 0.17744474078519454, 0.3077655975506002, -0.4296056258871092, -0.21991771790107675, 0.11024173233183283, 0.14713980815134825, 0.13475918392285557, -0.053005682060257624, -0.2793525667751537, 0.06146029499359429, -0.1430942269142571, -0.10202770740337049, -0.11019584079108694, -0.015133500829631207, 0.022531521540847334, -0.31728667958511736, 0.1053516161993292, 0.12387802204523492, 0.09429397579629485, 0.000379598795381539, -0.1794213659983749, 0.07918739730638324, 0.107361357398879, 0.009882264141696413, -0.0867048234612608, 0.13772076805688294, -0.0998108156536724, -0.14603037392611012, 0.3627660434930494, -0.04484654168653138, -0.2135987881041479, 0.17531909118863007, -0.09564120407837133, -0.20283475268960877, 0.041939122757563986, 0.2149600635885316, 0.11308026459415023, -0.13899699578919977, 0.13702037922271035, -0.029410778672671785, 0.1169023502791556, 0.02996718374026172, 0.021604941386327733, 0.13282573982324525, 0.1271950647819276, 0.04849934197651843, 0.14095857670512416, -0.012627881931086235, -0.19657458516988247, -0.3214421813449293, -0.08487462978262235, -0.22037500355109646, 0.0017730432069476914, -0.17207831089035608, -0.21631277282265762, 0.4026142105861914, 0.1752393229261917, 0.16653284767423482, 0.11024337340895013, 0.2516668267255905, 0.11243961969112028, -0.07236571561125126, 0.07116917674612327, 0.16101074132751034, 0.2679204092927131, 0.11188530051332041, -0.1192908301554602, 0.07660886198145282, 0.11564081201475918] |
1,802.00382 | Classifying medical notes into standard disease codes using Machine
Learning | We investigate the automatic classification of patient discharge notes into
standard disease labels. We find that Convolutional Neural Networks with
Attention outperform previous algorithms used in this task, and suggest further
areas for improvement.
| cs.LG cs.CL stat.AP stat.ML | we investigate the automatic classification of patient discharge notes into standard disease labels we find that convolutional neural networks with attention outperform previous algorithms used in this task and suggest further areas for improvement | [['we', 'investigate', 'the', 'automatic', 'classification', 'of', 'patient', 'discharge', 'notes', 'into', 'standard', 'disease', 'labels', 'we', 'find', 'that', 'convolutional', 'neural', 'networks', 'with', 'attention', 'outperform', 'previous', 'algorithms', 'used', 'in', 'this', 'task', 'and', 'suggest', 'further', 'areas', 'for', 'improvement']] | [0.014874767402515691, -0.05328999510418404, -0.010488553054849891, 0.08560224346857627, -0.08022056498071727, -0.22115887276937857, 0.05680600909844918, 0.5409815916243721, -0.1702001656898681, -0.2648220579413807, 0.06921138568877187, -0.25012523467269016, -0.2661960546803825, 0.23025241625659607, -0.2325499636833282, 0.0802026688504745, 0.24896048338097684, 0.047691704814924914, -0.06938342631602769, -0.3652949291281402, 0.26012517095488663, -0.004757349434144357, 0.3960733435609761, 0.03128232785007533, 0.09339591863510363, -0.0325955754995127, -0.0861882852828678, -0.023380334434263846, -0.11965177409964621, 0.17582081243231454, 0.39727953788550463, 0.18788103959249222, 0.35597337826209907, -0.45599401323124766, -0.3016609960947843, 0.12273070462705458, 0.15995079391252467, 0.14427736513864467, -0.0030973744578659534, -0.3511015566832879, 0.10767100103754167, -0.20798758395454464, 0.08346844609717236, -0.11033870567403295, -0.044055252609884035, -0.010193438543116344, -0.2635828884428038, 0.06824070026221521, 0.06972779311164391, 0.11498039796510164, -0.060363790807862056, -0.15978193948702776, 0.05280159057378221, 0.2030302309705054, 0.06512282249134253, 0.08342845728346969, 0.1614254341351197, -0.21752584690864965, -0.22897062683477998, 0.2872120290994644, -0.03609414261710994, -0.1766218457453172, 0.1447074568885214, -0.019357201739159578, -0.2367601115256548, 0.09259017452816753, 0.30268665759221597, 0.057014418382416755, -0.14128047908546731, -0.08880480743348873, -0.027903526657182202, 0.18773081612444537, 0.05867530446609154, -0.039234454510733485, 0.17010301921297521, 0.3172532303039642, -0.02193899465012638, 0.15412991669248133, -0.12226375044487856, -0.009124681504224153, -0.1623915935154347, -0.11054561207728351, -0.09651037316550226, -0.015474878758301629, -0.051422772038409566, -0.1668489262023393, 0.45071966212023706, 0.29613543956485744, 0.15491000461556456, 0.13518817826886387, 0.27546283832805996, -0.017521958962521133, 0.14902700237272418, 0.12011801685473662, 0.16991042491623803, 0.018063185925711878, 0.13981530026477926, -0.15796748959623716, 0.08023643040317385, 0.09644473889185225] |
1,802.00383 | Annotation-Free and One-Shot Learning for Instance Segmentation of
Homogeneous Object Clusters | We propose a novel approach for instance segmen- tation given an image of
homogeneous object clus- ter (HOC). Our learning approach is one-shot be- cause
a single video of an object instance is cap- tured and it requires no human
annotation. Our in- tuition is that images of homogeneous objects can be
effectively synthesized based on structure and illumination priors derived from
real images. A novel solver is proposed that iteratively maximizes our
structured likelihood to generate realistic im- ages of HOC. Illumination
transformation scheme is applied to make the real and synthetic images share
the same illumination condition. Extensive experiments and comparisons are
performed to ver- ify our method. We build a dataset consisting of pixel-level
annotated images of HOC. The dataset and code will be published with the paper.
| cs.CV | we propose a novel approach for instance segmen tation given an image of homogeneous object clus ter hoc our learning approach is oneshot be cause a single video of an object instance is cap tured and it requires no human annotation our in tuition is that images of homogeneous objects can be effectively synthesized based on structure and illumination priors derived from real images a novel solver is proposed that iteratively maximizes our structured likelihood to generate realistic im ages of hoc illumination transformation scheme is applied to make the real and synthetic images share the same illumination condition extensive experiments and comparisons are performed to ver ify our method we build a dataset consisting of pixellevel annotated images of hoc the dataset and code will be published with the paper | [['we', 'propose', 'a', 'novel', 'approach', 'for', 'instance', 'segmen', 'tation', 'given', 'an', 'image', 'of', 'homogeneous', 'object', 'clus', 'ter', 'hoc', 'our', 'learning', 'approach', 'is', 'oneshot', 'be', 'cause', 'a', 'single', 'video', 'of', 'an', 'object', 'instance', 'is', 'cap', 'tured', 'and', 'it', 'requires', 'no', 'human', 'annotation', 'our', 'in', 'tuition', 'is', 'that', 'images', 'of', 'homogeneous', 'objects', 'can', 'be', 'effectively', 'synthesized', 'based', 'on', 'structure', 'and', 'illumination', 'priors', 'derived', 'from', 'real', 'images', 'a', 'novel', 'solver', 'is', 'proposed', 'that', 'iteratively', 'maximizes', 'our', 'structured', 'likelihood', 'to', 'generate', 'realistic', 'im', 'ages', 'of', 'hoc', 'illumination', 'transformation', 'scheme', 'is', 'applied', 'to', 'make', 'the', 'real', 'and', 'synthetic', 'images', 'share', 'the', 'same', 'illumination', 'condition', 'extensive', 'experiments', 'and', 'comparisons', 'are', 'performed', 'to', 'ver', 'ify', 'our', 'method', 'we', 'build', 'a', 'dataset', 'consisting', 'of', 'pixellevel', 'annotated', 'images', 'of', 'hoc', 'the', 'dataset', 'and', 'code', 'will', 'be', 'published', 'with', 'the', 'paper']] | [-0.06186285500343029, -0.02274797485868196, -0.10586322524513189, 0.038744686288723296, -0.12367156874388456, -0.16110724600461812, 0.008682794525968627, 0.49352511064364357, -0.22107756798370526, -0.3750622480821151, 0.06606633423093276, -0.24866136172965456, -0.16904866054940682, 0.20033870451868727, -0.163139679762893, 0.04767888207346774, 0.15831281882889855, 0.004845248837059794, -0.025863694696902084, -0.2589920331159821, 0.3100941474473355, 0.050808543871300155, 0.3075056780058031, 0.004975843533443717, 0.13606651595865304, -0.049954106866453706, -0.05195388794661714, -0.0008255372611949077, -0.0329419010467693, 0.15830225193371567, 0.2593405493606742, 0.23493260368346594, 0.23932482723254137, -0.4047770294145896, -0.22712339993852834, 0.061753338772373705, 0.11615888448297762, 0.10164257682716617, -0.08027173031872595, -0.36709642033182227, 0.11741883605360412, -0.1435815491212102, 0.006903672519211586, -0.09877514202291003, -0.015540922803428168, -0.027263301256775428, -0.3748994867948708, 0.03390350813376874, 0.014624209211279566, 0.08254624179277856, -0.09761161783781762, -0.0865829869101827, 0.025319037200097226, 0.1719727353998818, -0.01959007558806871, 0.08046867113488798, 0.13688549479523388, -0.13554570562913656, -0.09648264900852854, 0.38575286525659835, -0.044760298413726, -0.21681632022731578, 0.18626173802723106, -0.010507955613474434, -0.09656150784486761, 0.1269389296663576, 0.19701385071787697, 0.2040602867061702, -0.17384396325125215, 0.007409984017990959, -0.11883984287627615, 0.21796926326619892, 0.049741750291118825, -0.04889861942501739, 0.16371437723103624, 0.1987864158187921, 0.008673927872083508, 0.15677572782957352, -0.1817154625018772, -0.011865269176017207, -0.22755447847482105, -0.12741778345527843, -0.21097101834602655, 0.014067213856077825, -0.09320541271668985, -0.1706873191234011, 0.3561572831259232, 0.23995389761045002, 0.19126675760803313, 0.05469988864094306, 0.3447861966390449, 0.01718740701997796, 0.1017197718216966, 0.05849769526483634, 0.1513606126411245, -0.004225939660458467, 0.09038814913409833, -0.14723008357597372, 0.07060853828443214, 0.03687888093185253] |
1,802.00384 | An analytical computation of magnetic field generated from a cylinder
ferromagnet | An analytical formulation to compute a magnetic field generated from an
uniformly magnetized cylinder ferromagnet is developed. Exact solutions of the
magnetic field generated from the magnetization pointing in an arbitrary
direction are derived, which are applicable both inside and outside the
ferromagnet. The validities of the present formulas are confirmed by comparing
them with demagnetization coefficients estimated in earlier works. The results
will be useful for designing practical applications, such as high-density
magnetic recording and microwave generators, where nanostructured ferromagnets
are coupled to each other through the dipole interactions and show cooperative
phenomena such as synchronization. As an example, the magnetic field generated
from a spin torque oscillator for magnetic recording based on microwave
assisted magnetization reversal is studied.
| cond-mat.mes-hall cond-mat.other math-ph math.MP physics.comp-ph | an analytical formulation to compute a magnetic field generated from an uniformly magnetized cylinder ferromagnet is developed exact solutions of the magnetic field generated from the magnetization pointing in an arbitrary direction are derived which are applicable both inside and outside the ferromagnet the validities of the present formulas are confirmed by comparing them with demagnetization coefficients estimated in earlier works the results will be useful for designing practical applications such as highdensity magnetic recording and microwave generators where nanostructured ferromagnets are coupled to each other through the dipole interactions and show cooperative phenomena such as synchronization as an example the magnetic field generated from a spin torque oscillator for magnetic recording based on microwave assisted magnetization reversal is studied | [['an', 'analytical', 'formulation', 'to', 'compute', 'a', 'magnetic', 'field', 'generated', 'from', 'an', 'uniformly', 'magnetized', 'cylinder', 'ferromagnet', 'is', 'developed', 'exact', 'solutions', 'of', 'the', 'magnetic', 'field', 'generated', 'from', 'the', 'magnetization', 'pointing', 'in', 'an', 'arbitrary', 'direction', 'are', 'derived', 'which', 'are', 'applicable', 'both', 'inside', 'and', 'outside', 'the', 'ferromagnet', 'the', 'validities', 'of', 'the', 'present', 'formulas', 'are', 'confirmed', 'by', 'comparing', 'them', 'with', 'demagnetization', 'coefficients', 'estimated', 'in', 'earlier', 'works', 'the', 'results', 'will', 'be', 'useful', 'for', 'designing', 'practical', 'applications', 'such', 'as', 'highdensity', 'magnetic', 'recording', 'and', 'microwave', 'generators', 'where', 'nanostructured', 'ferromagnets', 'are', 'coupled', 'to', 'each', 'other', 'through', 'the', 'dipole', 'interactions', 'and', 'show', 'cooperative', 'phenomena', 'such', 'as', 'synchronization', 'as', 'an', 'example', 'the', 'magnetic', 'field', 'generated', 'from', 'a', 'spin', 'torque', 'oscillator', 'for', 'magnetic', 'recording', 'based', 'on', 'microwave', 'assisted', 'magnetization', 'reversal', 'is', 'studied']] | [-0.16229383914421003, 0.18298024663284498, 0.00902152016593997, 0.013944909514005606, -0.10074587030151937, -0.13063880029755334, -0.04707657134858891, 0.41996857926715164, -0.25195876058811945, -0.28835596540787567, 0.07989452868544807, -0.2611624929277847, -0.10087368638875584, 0.3198579270159826, 0.04974448370885511, -0.0017811211223791664, -0.02613897969519409, 0.043700204727550346, -0.032967310623886685, -0.1573781341702367, 0.2411216175300069, 0.016086349589750172, 0.30559503510594366, 0.019529469264671206, 0.07510751273560648, 0.015506977483164519, 0.05665410360864674, 0.060185056451397635, -0.10857786469083901, 0.05461722114899506, 0.24080495624803006, -0.018228362318283568, 0.16472956682555379, -0.519163902134945, -0.210114249959103, 0.027440954585714886, 0.15059090928795438, 0.16196825610143908, -0.11911958096801148, -0.3145662292993317, 0.06284730698292454, -0.1367910006471599, -0.1343974740904135, -0.11580616108064229, -0.0174072639211469, 0.07744366827731332, -0.3316965560894459, 0.025001140410313382, 0.07594942799914861, 0.13155657597041379, -0.10513698009308428, -0.08258933568528543, -0.022803502766570696, 0.11047320424889524, 0.06903988973159964, 0.082818961989445, 0.18696427087609965, -0.1165281796672692, -0.1512944606365636, 0.32766020050427563, -0.037833570847093746, -0.16771544215783554, 0.14058846638266306, -0.13602001820302878, -0.058040953214125085, 0.11302587788862486, 0.13700910892803222, 0.1401220815993535, -0.17426260480521402, 0.08012145824468461, 0.008421203478549917, 0.12244393601868069, 0.04803179538575932, 0.014469522509413461, 0.2602074160366707, 0.1505201166883732, 0.015615787434702119, 0.18003379604924702, -0.0961396151962011, -0.07491607803191679, -0.2601603259798139, -0.12175960813474376, -0.2488281062513124, 0.07244228170020506, -0.08321421400529895, -0.1528952105436474, 0.35325562761475643, 0.18408363668325667, 0.14388114095975954, -0.038477873892406936, 0.3327737711990873, 0.1354922400932992, 0.04867819312106197, 0.08253311663866043, 0.250220733898459, 0.20750501261403162, 0.12082580798305571, -0.242516704959174, 0.04528910539617451, 0.019610264720783258] |
1,802.00385 | A Unified Deep Learning Architecture for Abuse Detection | Hate speech, offensive language, sexism, racism and other types of abusive
behavior have become a common phenomenon in many online social media platforms.
In recent years, such diverse abusive behaviors have been manifesting with
increased frequency and levels of intensity. This is due to the openness and
willingness of popular media platforms, such as Twitter and Facebook, to host
content of sensitive or controversial topics. However, these platforms have not
adequately addressed the problem of online abusive behavior, and their
responsiveness to the effective detection and blocking of such inappropriate
behavior remains limited.
In the present paper, we study this complex problem by following a more
holistic approach, which considers the various aspects of abusive behavior. To
make the approach tangible, we focus on Twitter data and analyze user and
textual properties from different angles of abusive posting behavior. We
propose a deep learning architecture, which utilizes a wide variety of
available metadata, and combines it with automatically-extracted hidden
patterns within the text of the tweets, to detect multiple abusive behavioral
norms which are highly inter-related. We apply this unified architecture in a
seamless, transparent fashion to detect different types of abusive behavior
(hate speech, sexism vs. racism, bullying, sarcasm, etc.) without the need for
any tuning of the model architecture for each task. We test the proposed
approach with multiple datasets addressing different and multiple abusive
behaviors on Twitter. Our results demonstrate that it largely outperforms the
state-of-art methods (between 21 and 45\% improvement in AUC, depending on the
dataset).
| cs.CL cs.SI | hate speech offensive language sexism racism and other types of abusive behavior have become a common phenomenon in many online social media platforms in recent years such diverse abusive behaviors have been manifesting with increased frequency and levels of intensity this is due to the openness and willingness of popular media platforms such as twitter and facebook to host content of sensitive or controversial topics however these platforms have not adequately addressed the problem of online abusive behavior and their responsiveness to the effective detection and blocking of such inappropriate behavior remains limited in the present paper we study this complex problem by following a more holistic approach which considers the various aspects of abusive behavior to make the approach tangible we focus on twitter data and analyze user and textual properties from different angles of abusive posting behavior we propose a deep learning architecture which utilizes a wide variety of available metadata and combines it with automaticallyextracted hidden patterns within the text of the tweets to detect multiple abusive behavioral norms which are highly interrelated we apply this unified architecture in a seamless transparent fashion to detect different types of abusive behavior hate speech sexism vs racism bullying sarcasm etc without the need for any tuning of the model architecture for each task we test the proposed approach with multiple datasets addressing different and multiple abusive behaviors on twitter our results demonstrate that it largely outperforms the stateofart methods between 21 and 45 improvement in auc depending on the dataset | [['hate', 'speech', 'offensive', 'language', 'sexism', 'racism', 'and', 'other', 'types', 'of', 'abusive', 'behavior', 'have', 'become', 'a', 'common', 'phenomenon', 'in', 'many', 'online', 'social', 'media', 'platforms', 'in', 'recent', 'years', 'such', 'diverse', 'abusive', 'behaviors', 'have', 'been', 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1,802.00386 | Cross-City Transfer Learning for Deep Spatio-Temporal Prediction | Spatio-temporal prediction is a key type of tasks in urban computing, e.g.,
traffic flow and air quality. Adequate data is usually a prerequisite,
especially when deep learning is adopted. However, the development levels of
different cities are unbalanced, and still many cities suffer from data
scarcity. To address the problem, we propose a novel cross-city transfer
learning method for deep spatio-temporal prediction tasks, called RegionTrans.
RegionTrans aims to effectively transfer knowledge from a data-rich source city
to a data-scarce target city. More specifically, we first learn an inter-city
region matching function to match each target city region to a similar source
city region. A neural network is designed to effectively extract region-level
representation for spatio-temporal prediction. Finally, an optimization
algorithm is proposed to transfer learned features from the source city to the
target city with the region matching function. Using citywide crowd flow
prediction as a demonstration experiment, we verify the effectiveness of
RegionTrans. Results show that RegionTrans can outperform the state-of-the-art
fine-tuning deep spatio-temporal prediction models by reducing up to 10.7%
prediction error.
| cs.AI | spatiotemporal prediction is a key type of tasks in urban computing eg traffic flow and air quality adequate data is usually a prerequisite especially when deep learning is adopted however the development levels of different cities are unbalanced and still many cities suffer from data scarcity to address the problem we propose a novel crosscity transfer learning method for deep spatiotemporal prediction tasks called regiontrans regiontrans aims to effectively transfer knowledge from a datarich source city to a datascarce target city more specifically we first learn an intercity region matching function to match each target city region to a similar source city region a neural network is designed to effectively extract regionlevel representation for spatiotemporal prediction finally an optimization algorithm is proposed to transfer learned features from the source city to the target city with the region matching function using citywide crowd flow prediction as a demonstration experiment we verify the effectiveness of regiontrans results show that regiontrans can outperform the stateoftheart finetuning deep spatiotemporal prediction models by reducing up to 107 prediction error | [['spatiotemporal', 'prediction', 'is', 'a', 'key', 'type', 'of', 'tasks', 'in', 'urban', 'computing', 'eg', 'traffic', 'flow', 'and', 'air', 'quality', 'adequate', 'data', 'is', 'usually', 'a', 'prerequisite', 'especially', 'when', 'deep', 'learning', 'is', 'adopted', 'however', 'the', 'development', 'levels', 'of', 'different', 'cities', 'are', 'unbalanced', 'and', 'still', 'many', 'cities', 'suffer', 'from', 'data', 'scarcity', 'to', 'address', 'the', 'problem', 'we', 'propose', 'a', 'novel', 'crosscity', 'transfer', 'learning', 'method', 'for', 'deep', 'spatiotemporal', 'prediction', 'tasks', 'called', 'regiontrans', 'regiontrans', 'aims', 'to', 'effectively', 'transfer', 'knowledge', 'from', 'a', 'datarich', 'source', 'city', 'to', 'a', 'datascarce', 'target', 'city', 'more', 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1,802.00387 | Outflows in the Narrow Line Region of Bright Seyfert Galaxies - I:
GMOS-IFU Data | We present two-dimensional maps of emission-line fluxes and kinematics, as
well as of the stellar kinematics of the central few kpc of five bright nearby
Seyfert galaxies -- Mrk\,6, Mrk\,79, Mrk\,348, Mrk\,607 and Mrk\,1058 --
obtained from observations with the Gemini Multi-Object Spectrograph (GMOS)
Integral Field Unit (IFU) on the Gemini North Telescope. The data cover the
inner 3\farcs5$\times$5\farcs0 -- corresponding to physical scales in the range
0.6$\times$0.9 to 1.5$\times$2.2\,kpc$^2$ -- at a spatial resolution ranging
from 110 to 280 pc with a spectral coverage of 4300 -- 7100\,\AA\ and velocity
resolution of $\approx$ 90\,km\,s$^{-1}$. The gas excitation is Seyfert like
everywhere but show excitation, but show excitation gradients that are
correlated with the gas kinematics, reddening and/or the gas density. The gas
kinematics show in all cases two components: a rotation one similar to that
observed in the stellar velocity field, and an outflow component. In the case
of Mrk607, the gas is counter-rotating relative to the stars. Enhanced gas
velocity dispersion is observed in association to the outflows according to two
patterns: at the locations of the highest outflow velocities along the
ionization axis or perpendicularly to it in a strip centered at the nucleus
that we attribute to an equatorial outflow. Bipolar outflows are observed in
Mrk\,348 and Mrk\,79, while in Mrk\,1058 only the blueshifted part is clearly
observed, while in the cases of Mrk\,6 and Mrk\,607 the geometry of the outflow
needs further constraints from modeling to be presented in a forthcoming study,
where the mass flow rate and powers will also be obtained.
| astro-ph.GA | we present twodimensional maps of emissionline fluxes and kinematics as well as of the stellar kinematics of the central few kpc of five bright nearby seyfert galaxies mrk6 mrk79 mrk348 mrk607 and mrk1058 obtained from observations with the gemini multiobject spectrograph gmos integral field unit ifu on the gemini north telescope the data cover the inner 3farcs5times5farcs0 corresponding to physical scales in the range 06times09 to 15times22kpc2 at a spatial resolution ranging from 110 to 280 pc with a spectral coverage of 4300 7100aa and velocity resolution of approx 90kms1 the gas excitation is seyfert like everywhere but show excitation but show excitation gradients that are correlated with the gas kinematics reddening andor the gas density the gas kinematics show in all cases two components a rotation one similar to that observed in the stellar velocity field and an outflow component in the case of mrk607 the gas is counterrotating relative to the stars enhanced gas velocity dispersion is observed in association to the outflows according to two patterns at the locations of the highest outflow velocities along the ionization axis or perpendicularly to it in a strip centered at the nucleus that we attribute to an equatorial outflow bipolar outflows are observed in mrk348 and mrk79 while in mrk1058 only the blueshifted part is clearly observed while in the cases of mrk6 and mrk607 the geometry of the outflow needs further constraints from modeling to be presented in a forthcoming study where the mass flow rate and powers will also be obtained | [['we', 'present', 'twodimensional', 'maps', 'of', 'emissionline', 'fluxes', 'and', 'kinematics', 'as', 'well', 'as', 'of', 'the', 'stellar', 'kinematics', 'of', 'the', 'central', 'few', 'kpc', 'of', 'five', 'bright', 'nearby', 'seyfert', 'galaxies', 'mrk6', 'mrk79', 'mrk348', 'mrk607', 'and', 'mrk1058', 'obtained', 'from', 'observations', 'with', 'the', 'gemini', 'multiobject', 'spectrograph', 'gmos', 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1,802.00388 | Understanding the magnetism in noncentrosymmetric CeIrGe3: Muon spin
relaxation and neutron scattering studies | The magnetic properties of a pressure induced noncentrosymmetric
heavy-fermion superconductor CeIrGe$_3$ have been investigated by muon spin
relaxation ($\mu$SR), powder neutron diffraction (ND) and inelastic neutron
scattering (INS) techniques at ambient pressure. For completeness we have also
measured the ac magnetic susceptibility $\chi_{\rm ac}(T)$, dc magnetic
susceptibility $\chi(T)$, dc isothermal magnetization $M(H)$ and heat capacity
$C_{\rm p}(T,H)$ down to 2 K. CeIrGe$_{3}$ is known to exhibit pressure induced
superconductivity ($T_{\rm c}\approx 1.5$ K) at a pressure of 20 GPa and
antiferromagnetic ordering at 8.7 K, 4.7 K and 0.7 K at ambient pressure. Our
$\chi_{\rm ac}(T)$ and $\chi(T)$ data show an additional anomaly near 6.2 K
which is also captured in $C_{\rm p}(T)$ data. From $\chi_{\rm ac}(T)$,
$\chi(T)$ and $C_{\rm p}(T)$ measurements we infer three antiferromagnetic
transitions above 2 K at $T_{\rm N1}= 8.5$ K, $T_{\rm N2}= 6.0$ K and $T_{\rm
N3}= 4.6$ K. Our $\mu$SR study also confirms the presence of three transitions
through the observation of one frequency for $T_{\rm N2} < T\leq T_{\rm N1}$,
two frequencies for $T_{\rm N3} < T\leq T_{\rm N2}$ and three frequencies for
$T\leq T_{\rm N3}$ in the oscillatory asymmetry. The ND data reveal an
incommensurate nature of the magnetic ordering at $T=7$ K with the propagation
vector k = (0,0,0.688(3)), and a commensurate magnetic structure at $T=1.5$ K
with the propagation vector locked to the value k = (0,0,2/3) and magnetic
moments oriented along the $c$ axis. The commensurate structure couples a
macroscopic ferromagnetic component, resulting in a strong dependence of the
lock-in transition temperature on external magnetic field. The INS data show
two well defined crystal electric field (CEF) excitations arising from the
CEF-split Kramers doublet ground state of Ce$^{3+}$.
| cond-mat.str-el cond-mat.supr-con | the magnetic properties of a pressure induced noncentrosymmetric heavyfermion superconductor ceirge_3 have been investigated by muon spin relaxation musr powder neutron diffraction nd and inelastic neutron scattering ins techniques at ambient pressure for completeness we have also measured the ac magnetic susceptibility chi_rm act dc magnetic susceptibility chit dc isothermal magnetization mh and heat capacity c_rm pth down to 2 k ceirge_3 is known to exhibit pressure induced superconductivity t_rm capprox 15 k at a pressure of 20 gpa and antiferromagnetic ordering at 87 k 47 k and 07 k at ambient pressure our chi_rm act and chit data show an additional anomaly near 62 k which is also captured in c_rm pt data from chi_rm act chit and c_rm pt measurements we infer three antiferromagnetic transitions above 2 k at t_rm n1 85 k t_rm n2 60 k and t_rm n3 46 k our musr study also confirms the presence of three transitions through the observation of one frequency for t_rm n2 tleq t_rm n1 two frequencies for t_rm n3 tleq t_rm n2 and three frequencies for tleq t_rm n3 in the oscillatory asymmetry the nd data reveal an incommensurate nature of the magnetic ordering at t7 k with the propagation vector k 0006883 and a commensurate magnetic structure at t15 k with the propagation vector locked to the value k 0023 and magnetic moments oriented along the c axis the commensurate structure couples a macroscopic ferromagnetic component resulting in a strong dependence of the lockin transition temperature on external magnetic field the ins data show two well defined crystal electric field cef excitations arising from the cefsplit kramers doublet ground state of ce3 | [['the', 'magnetic', 'properties', 'of', 'a', 'pressure', 'induced', 'noncentrosymmetric', 'heavyfermion', 'superconductor', 'ceirge_3', 'have', 'been', 'investigated', 'by', 'muon', 'spin', 'relaxation', 'musr', 'powder', 'neutron', 'diffraction', 'nd', 'and', 'inelastic', 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1,802.00389 | Investigation of the dynamics of ionization induced injected electrons
under the influence of beam loading effects | In laser-driven wakefield, ionization induced injection is an efficient way
to inject electrons in the plasma wave. A detailed study on the beam dynamics
under the influence of beam loading effects, which can be controlled by the
concentration of nitrogen impurity introduced in the hydrogen gas was
conducted. For a specific value of this percentage, the final energy of the
high-energy electron bunch becomes nearly independent of the trapped positions,
thus leading to a small energy dispersion. We also show that the final beam
emittance is mainly determined by the injection process.
| physics.plasm-ph | in laserdriven wakefield ionization induced injection is an efficient way to inject electrons in the plasma wave a detailed study on the beam dynamics under the influence of beam loading effects which can be controlled by the concentration of nitrogen impurity introduced in the hydrogen gas was conducted for a specific value of this percentage the final energy of the highenergy electron bunch becomes nearly independent of the trapped positions thus leading to a small energy dispersion we also show that the final beam emittance is mainly determined by the injection process | [['in', 'laserdriven', 'wakefield', 'ionization', 'induced', 'injection', 'is', 'an', 'efficient', 'way', 'to', 'inject', 'electrons', 'in', 'the', 'plasma', 'wave', 'a', 'detailed', 'study', 'on', 'the', 'beam', 'dynamics', 'under', 'the', 'influence', 'of', 'beam', 'loading', 'effects', 'which', 'can', 'be', 'controlled', 'by', 'the', 'concentration', 'of', 'nitrogen', 'impurity', 'introduced', 'in', 'the', 'hydrogen', 'gas', 'was', 'conducted', 'for', 'a', 'specific', 'value', 'of', 'this', 'percentage', 'the', 'final', 'energy', 'of', 'the', 'highenergy', 'electron', 'bunch', 'becomes', 'nearly', 'independent', 'of', 'the', 'trapped', 'positions', 'thus', 'leading', 'to', 'a', 'small', 'energy', 'dispersion', 'we', 'also', 'show', 'that', 'the', 'final', 'beam', 'emittance', 'is', 'mainly', 'determined', 'by', 'the', 'injection', 'process']] | [-0.10530892827702464, 0.2380565988045735, -0.055361687529670155, 0.052290549116566144, 0.04881011807035817, -0.0843224491994909, 0.032600171813417386, 0.3958268166195763, -0.2597254350814341, -0.31617655586856214, 0.007644878160056617, -0.24696018646025789, 0.04531521274222304, 0.207850882054671, 0.014737491929933996, 0.034405468710009816, 0.05825770263175439, -0.04408085075429762, -0.029723225968748167, -0.2006512699932184, 0.305131205904257, 0.20019364298280815, 0.2954251611524302, 0.11144590382552808, 0.09958897185329672, 0.019287978311615956, 0.024042038773388966, -0.010064733164061023, -0.12302550409865785, 0.0670710309945128, 0.16611180326941868, 0.024147074170326487, 0.2801478542488716, -0.4561111857385739, -0.22388315221051808, 0.03868900184296881, 0.1550052848912816, 0.15455321753372275, -0.12484352914844235, -0.24016732531700932, 0.0092988876555034, -0.1792098764816056, -0.17526723430289523, -0.002758680326540185, 0.004463841764094389, 0.07238695284847738, -0.2777788717421177, 0.0691856344090648, 0.03609792772255352, 0.0019008748577502759, -0.04583366540938859, -0.061592327516890415, -0.05163871482743517, 0.05143205334088239, 0.049620135388344665, 0.04633280952491433, 0.25402135054742836, -0.11590940519944644, -0.02758130048016977, 0.38988444436867925, -0.04873246281994912, -0.16290216437008223, 0.12564734637777766, -0.20679389236940313, -0.03522480426132144, 0.22785098789988653, 0.19414852460360396, 0.08517995386564112, -0.17319733279494, 0.0030753518070053797, -0.017875105770065642, 0.17148687753259487, 0.12483887928133101, 0.007301417551428565, 0.2125812560805808, 0.18554397760485503, 0.08123075646226821, 0.16779818480869796, -0.14446530410888322, -0.00545642375389276, -0.27368533344048523, -0.14554689008661587, -0.16245378144642175, 0.0702963895827175, -0.0027332865258516826, -0.13566573736202175, 0.44572873537064245, 0.11397677470449707, 0.1684149815802179, -0.11499541693078556, 0.3257218677393647, 0.15572958575237705, 0.0027467241591733436, 0.0550242083693814, 0.26548853577317105, 0.12463500974801085, 0.08951111098640072, -0.3121110861462986, 0.08220727013869454, 0.015765945994011734] |
1,802.0039 | Face Synthesis with Landmark Points from Generative Adversarial Networks
and Inverse Latent Space Mapping | Facial landmarks refer to the localization of fundamental facial points on
face images. There have been a tremendous amount of attempts to detect these
points from facial images however, there has never been an attempt to
synthesize a random face and generate its corresponding facial landmarks. This
paper presents a framework for augmenting a dataset in a latent Z-space and
applied to the regression problem of generating a corresponding set of
landmarks from a 2D facial dataset. The BEGAN framework has been used to train
a face generator from CelebA database. The inverse of the generator is
implemented using an Adam optimizer to generate the latent vector corresponding
to each facial image, and a lightweight deep neural network is trained to map
latent Z-space vectors to the landmark space. Initial results are promising and
provide a generic methodology to augment annotated image datasets with
additional intermediate samples.
| eess.IV | facial landmarks refer to the localization of fundamental facial points on face images there have been a tremendous amount of attempts to detect these points from facial images however there has never been an attempt to synthesize a random face and generate its corresponding facial landmarks this paper presents a framework for augmenting a dataset in a latent zspace and applied to the regression problem of generating a corresponding set of landmarks from a 2d facial dataset the began framework has been used to train a face generator from celeba database the inverse of the generator is implemented using an adam optimizer to generate the latent vector corresponding to each facial image and a lightweight deep neural network is trained to map latent zspace vectors to the landmark space initial results are promising and provide a generic methodology to augment annotated image datasets with additional intermediate samples | [['facial', 'landmarks', 'refer', 'to', 'the', 'localization', 'of', 'fundamental', 'facial', 'points', 'on', 'face', 'images', 'there', 'have', 'been', 'a', 'tremendous', 'amount', 'of', 'attempts', 'to', 'detect', 'these', 'points', 'from', 'facial', 'images', 'however', 'there', 'has', 'never', 'been', 'an', 'attempt', 'to', 'synthesize', 'a', 'random', 'face', 'and', 'generate', 'its', 'corresponding', 'facial', 'landmarks', 'this', 'paper', 'presents', 'a', 'framework', 'for', 'augmenting', 'a', 'dataset', 'in', 'a', 'latent', 'zspace', 'and', 'applied', 'to', 'the', 'regression', 'problem', 'of', 'generating', 'a', 'corresponding', 'set', 'of', 'landmarks', 'from', 'a', '2d', 'facial', 'dataset', 'the', 'began', 'framework', 'has', 'been', 'used', 'to', 'train', 'a', 'face', 'generator', 'from', 'celeba', 'database', 'the', 'inverse', 'of', 'the', 'generator', 'is', 'implemented', 'using', 'an', 'adam', 'optimizer', 'to', 'generate', 'the', 'latent', 'vector', 'corresponding', 'to', 'each', 'facial', 'image', 'and', 'a', 'lightweight', 'deep', 'neural', 'network', 'is', 'trained', 'to', 'map', 'latent', 'zspace', 'vectors', 'to', 'the', 'landmark', 'space', 'initial', 'results', 'are', 'promising', 'and', 'provide', 'a', 'generic', 'methodology', 'to', 'augment', 'annotated', 'image', 'datasets', 'with', 'additional', 'intermediate', 'samples']] | [-0.011036941606027143, -0.0547646098034884, -0.08283211390145731, 0.04974606856394901, -0.12071482580611292, -0.16666114070574709, -0.006370923547612719, 0.4632896409389012, -0.26555960859824607, -0.3143953197971493, 0.09923062584328078, -0.3257544184052924, -0.18081269180085383, 0.1635375701106426, -0.18420801010793772, 0.1418429736683912, 0.12035142075029664, 0.09106305631873084, -0.04938842640630584, -0.2571902703177057, 0.28539316453749225, 0.00671741665878688, 0.2958107410318719, -0.030020305855187022, 0.20481203152436991, -0.06609380398290929, -0.02996113061505769, -0.012350918624754424, -0.03243522515178335, 0.21466547883904483, 0.32683557760268195, 0.21495641995899278, 0.28745906803832977, -0.4165468200356985, -0.19724850912204608, 0.1083138964367004, 0.11329747320843392, 0.15632244592722977, -0.05488899785813046, -0.3916898852809757, 0.10867614774857046, -0.12562746067411032, 0.014544368987636907, -0.15337326544254612, 0.030779749809187792, -0.07848144394066818, -0.31637363441187105, -0.006908529729512679, 0.041525102797008696, 0.1209152580878767, -0.06041143916873578, -0.09019338082503148, -0.027600643362811938, 0.22248366387041452, 0.05109093959766383, 0.13518866170577856, 0.12372159458012605, -0.18885950914419378, -0.11938292849975239, 0.3712772811021732, -0.0226427707187578, -0.2183860188665274, 0.18093556101072808, -0.018387493579236625, -0.13260218152320202, 0.1571297472608941, 0.276815919573007, 0.11472497497792958, -0.19419165663294444, 0.019005428320177053, -0.12136180289477731, 0.18840388055941482, 0.0529796430040436, -0.06802874591302913, 0.216372992688961, 0.19629749091228052, 0.007723391250878268, 0.1836529062842304, -0.2231863271682618, 0.019016966008308794, -0.204911690294033, -0.1043686842906992, -0.24228802367690064, -0.023985814094087298, -0.08769983892308447, -0.19206381958377147, 0.46113786023731035, 0.24344239465664236, 0.28351338905896867, 0.07710858933044737, 0.28843776014994604, 0.02458174382488886, 0.15523050252512907, 0.05282125686973232, 0.14365170961942803, 0.007956341894178771, 0.10873486833380801, -0.12246934400608471, 0.08618808585554869, 0.09767943155337251] |
1,802.00391 | Generalized Mathematical Formalism Governing Free-carrier Driven Kerr
Frequency Comb in Optical Micro-cavities | Continuous-wave pumped optical microresonators have been vastly exploited to
generate frequency comb (FC) utilizing the Kerr nonlinearity. Most of the
nonlinear materials used to build photonic platforms exhibit nonlinear losses
such as multi-photon absorption, free-carrier absorption (FCA), and
free-carrier dispersion (FCD) which can strongly affect the nonlinear
characteristics of the devices made out of these materials. In this work, we
model the Kerr FC based on modified Lugiato-Lefever Equation (LLE) along with
the rate equation and develop analytical formulations to make quick estimations
of the steady-state, modulation instability (MI) gain, bandwidth and the
dynamics of Kerr Frequency-Comb (FC) in presence of nonlinear losses. Our
analytical model is valid over a broad wavelength range of interest as it
includes the effects of all nonlinear losses. Higher order (>3) characteristic
polynomial of intra-cavity power describing the steady-state homogeneous
solution of the modified LLE are discussed in detail. We derive the generalized
analytical expressions for the threshold of normalized pump detuning to
initiate the optical bistability which is a necessary condition for the FC
generation. Free-carrier dispersion-led nonlinear cavity detuning is observed
through the reverse Kerr-tilt of the resonant-peaks. We further deduce the
expressions for the threshold pump intensity and the range of possible cavity
detuning for the initiation of the MI when all the nonlinear losses are
present. To corroborate our analytical findings, LLE along with the rate
equations are solved numerically through split-step Fourier method. Our
theoretical study can explain several experimental results which are previously
reported and thereby is able to provide a better understanding of the comb
dynamics.
| physics.optics | continuouswave pumped optical microresonators have been vastly exploited to generate frequency comb fc utilizing the kerr nonlinearity most of the nonlinear materials used to build photonic platforms exhibit nonlinear losses such as multiphoton absorption freecarrier absorption fca and freecarrier dispersion fcd which can strongly affect the nonlinear characteristics of the devices made out of these materials in this work we model the kerr fc based on modified lugiatolefever equation lle along with the rate equation and develop analytical formulations to make quick estimations of the steadystate modulation instability mi gain bandwidth and the dynamics of kerr frequencycomb fc in presence of nonlinear losses our analytical model is valid over a broad wavelength range of interest as it includes the effects of all nonlinear losses higher order 3 characteristic polynomial of intracavity power describing the steadystate homogeneous solution of the modified lle are discussed in detail we derive the generalized analytical expressions for the threshold of normalized pump detuning to initiate the optical bistability which is a necessary condition for the fc generation freecarrier dispersionled nonlinear cavity detuning is observed through the reverse kerrtilt of the resonantpeaks we further deduce the expressions for the threshold pump intensity and the range of possible cavity detuning for the initiation of the mi when all the nonlinear losses are present to corroborate our analytical findings lle along with the rate equations are solved numerically through splitstep fourier method our theoretical study can explain several experimental results which are previously reported and thereby is able to provide a better understanding of the comb dynamics | [['continuouswave', 'pumped', 'optical', 'microresonators', 'have', 'been', 'vastly', 'exploited', 'to', 'generate', 'frequency', 'comb', 'fc', 'utilizing', 'the', 'kerr', 'nonlinearity', 'most', 'of', 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1,802.00392 | An intrinsic pink-noise multi-decadal global climate dynamics mode | Understanding multi-decadal variability is an essential goal of climate
dynamics. For example, the recent phenomenon referred to as the "global warming
hiatus" may reflect a coupling to an intrinsic, pre-industrial, multi-decadal
variability process. Here, using a multi-fractal time series method, we
demonstrate that forty-two data sets of seventy-nine proxies with global
coverage exhibit pink noise characteristics on multi-decadal time scales. To
quantify the persistence of this behavior, we examine high-resolution ice core
and speleothem data to find pink noise in both pre- and post-industrial
periods. We examine the spatial structure with Empirical Orthogonal Function
(EOF) analysis of the monthly-averaged surface temperature from 1901 to 2012.
The first mode clearly shows the distribution of ocean heat flux sinks located
in the eastern Pacific and the Southern Ocean, and has pink noise
characteristics on a multi-decadal time-scale. We hypothesize that this pink
noise multi-decadal spatial mode may resonate with externally-driven greenhouse
gas forcing, driving large-scale climate processes.
| physics.ao-ph nlin.CD | understanding multidecadal variability is an essential goal of climate dynamics for example the recent phenomenon referred to as the global warming hiatus may reflect a coupling to an intrinsic preindustrial multidecadal variability process here using a multifractal time series method we demonstrate that fortytwo data sets of seventynine proxies with global coverage exhibit pink noise characteristics on multidecadal time scales to quantify the persistence of this behavior we examine highresolution ice core and speleothem data to find pink noise in both pre and postindustrial periods we examine the spatial structure with empirical orthogonal function eof analysis of the monthlyaveraged surface temperature from 1901 to 2012 the first mode clearly shows the distribution of ocean heat flux sinks located in the eastern pacific and the southern ocean and has pink noise characteristics on a multidecadal timescale we hypothesize that this pink noise multidecadal spatial mode may resonate with externallydriven greenhouse gas forcing driving largescale climate processes | [['understanding', 'multidecadal', 'variability', 'is', 'an', 'essential', 'goal', 'of', 'climate', 'dynamics', 'for', 'example', 'the', 'recent', 'phenomenon', 'referred', 'to', 'as', 'the', 'global', 'warming', 'hiatus', 'may', 'reflect', 'a', 'coupling', 'to', 'an', 'intrinsic', 'preindustrial', 'multidecadal', 'variability', 'process', 'here', 'using', 'a', 'multifractal', 'time', 'series', 'method', 'we', 'demonstrate', 'that', 'fortytwo', 'data', 'sets', 'of', 'seventynine', 'proxies', 'with', 'global', 'coverage', 'exhibit', 'pink', 'noise', 'characteristics', 'on', 'multidecadal', 'time', 'scales', 'to', 'quantify', 'the', 'persistence', 'of', 'this', 'behavior', 'we', 'examine', 'highresolution', 'ice', 'core', 'and', 'speleothem', 'data', 'to', 'find', 'pink', 'noise', 'in', 'both', 'pre', 'and', 'postindustrial', 'periods', 'we', 'examine', 'the', 'spatial', 'structure', 'with', 'empirical', 'orthogonal', 'function', 'eof', 'analysis', 'of', 'the', 'monthlyaveraged', 'surface', 'temperature', 'from', '1901', 'to', '2012', 'the', 'first', 'mode', 'clearly', 'shows', 'the', 'distribution', 'of', 'ocean', 'heat', 'flux', 'sinks', 'located', 'in', 'the', 'eastern', 'pacific', 'and', 'the', 'southern', 'ocean', 'and', 'has', 'pink', 'noise', 'characteristics', 'on', 'a', 'multidecadal', 'timescale', 'we', 'hypothesize', 'that', 'this', 'pink', 'noise', 'multidecadal', 'spatial', 'mode', 'may', 'resonate', 'with', 'externallydriven', 'greenhouse', 'gas', 'forcing', 'driving', 'largescale', 'climate', 'processes']] | [-0.13942638907147656, 0.14128177220250523, -0.10813741221745776, 0.11866476287044649, -0.03971109538665646, -0.036642727448133294, 0.04760257842460672, 0.3523512146157491, -0.2553905976524988, -0.2985673896490608, 0.1427631852347041, -0.2763894750340161, -0.2009449743593184, 0.2000457878139886, -0.12077677939631432, -0.024504082267589915, 0.039441256531795435, -0.0700926455856579, 0.03986370687784216, -0.18280533644788016, 0.2430548494736144, 0.11463237250191251, 0.3148666442426333, 0.019552003568062533, 0.0709883462208287, -0.08676840689232838, -0.07167028642694961, -0.03931463047765292, -0.11511334374687988, 0.017929316433328023, 0.2236260823382355, 0.10856869830235888, 0.2577892372296978, -0.4364953515325467, -0.27426693673690106, 0.10076459486630153, 0.09987467257593238, 0.04229528250100164, 0.02704343196554956, -0.25640244695491027, -0.017390244114273166, -0.13419597210096462, -0.13987826910051335, -0.04799272977994973, 0.07133554487017454, 0.013614400748810549, -0.24124056792647167, 0.1478302264812874, 0.08455646482550284, 0.17963604123464652, -0.09500819487291594, -0.10217663443756181, -0.08155734305097662, 0.13474247935560665, 0.05999782561553588, -0.004821635014679912, 0.1680937186367326, -0.06678852420179295, -0.07959006358143668, 0.3021712822404194, -0.14862492658476067, -0.08035294556196147, 0.2331132430026864, -0.22870429684846455, -0.11188466925258664, 0.11714307369978784, 0.17653831436794687, 0.010774848326532678, -0.1330570445502594, -0.012076204657772338, -0.019711790612427057, 0.21819411975621886, 0.0820555620609069, 0.021903024617674786, 0.2433795645249427, 0.20760500668729473, 0.08006222544588729, 0.10920738639890568, -0.22067321955782737, -0.08108159349989388, -0.1859363798904777, -0.06699201446510368, -0.11389528968720697, 0.06981056809724707, -0.05500550010179581, -0.18538990558893118, 0.4222996512204167, 0.180382694022476, 0.17434406968501892, 0.008345564186282746, 0.2880344686231443, 0.07693879722009787, 0.032650526452737, 0.09121928705422619, 0.19736097199394814, 0.12097882878869869, 0.1819471603973055, -0.26096695068431414, 0.10495834840785155, -0.020554570232475686] |
1,802.00393 | Large Scale Crowdsourcing and Characterization of Twitter Abusive
Behavior | In recent years, offensive, abusive and hateful language, sexism, racism and
other types of aggressive and cyberbullying behavior have been manifesting with
increased frequency, and in many online social media platforms. In fact, past
scientific work focused on studying these forms in popular media, such as
Facebook and Twitter. Building on such work, we present an 8-month study of the
various forms of abusive behavior on Twitter, in a holistic fashion. Departing
from past work, we examine a wide variety of labeling schemes, which cover
different forms of abusive behavior, at the same time. We propose an
incremental and iterative methodology, that utilizes the power of crowdsourcing
to annotate a large scale collection of tweets with a set of abuse-related
labels. In fact, by applying our methodology including statistical analysis for
label merging or elimination, we identify a reduced but robust set of labels.
Finally, we offer a first overview and findings of our collected and annotated
dataset of 100 thousand tweets, which we make publicly available for further
scientific exploration.
| cs.SI | in recent years offensive abusive and hateful language sexism racism and other types of aggressive and cyberbullying behavior have been manifesting with increased frequency and in many online social media platforms in fact past scientific work focused on studying these forms in popular media such as facebook and twitter building on such work we present an 8month study of the various forms of abusive behavior on twitter in a holistic fashion departing from past work we examine a wide variety of labeling schemes which cover different forms of abusive behavior at the same time we propose an incremental and iterative methodology that utilizes the power of crowdsourcing to annotate a large scale collection of tweets with a set of abuserelated labels in fact by applying our methodology including statistical analysis for label merging or elimination we identify a reduced but robust set of labels finally we offer a first overview and findings of our collected and annotated dataset of 100 thousand tweets which we make publicly available for further scientific exploration | [['in', 'recent', 'years', 'offensive', 'abusive', 'and', 'hateful', 'language', 'sexism', 'racism', 'and', 'other', 'types', 'of', 'aggressive', 'and', 'cyberbullying', 'behavior', 'have', 'been', 'manifesting', 'with', 'increased', 'frequency', 'and', 'in', 'many', 'online', 'social', 'media', 'platforms', 'in', 'fact', 'past', 'scientific', 'work', 'focused', 'on', 'studying', 'these', 'forms', 'in', 'popular', 'media', 'such', 'as', 'facebook', 'and', 'twitter', 'building', 'on', 'such', 'work', 'we', 'present', 'an', '8month', 'study', 'of', 'the', 'various', 'forms', 'of', 'abusive', 'behavior', 'on', 'twitter', 'in', 'a', 'holistic', 'fashion', 'departing', 'from', 'past', 'work', 'we', 'examine', 'a', 'wide', 'variety', 'of', 'labeling', 'schemes', 'which', 'cover', 'different', 'forms', 'of', 'abusive', 'behavior', 'at', 'the', 'same', 'time', 'we', 'propose', 'an', 'incremental', 'and', 'iterative', 'methodology', 'that', 'utilizes', 'the', 'power', 'of', 'crowdsourcing', 'to', 'annotate', 'a', 'large', 'scale', 'collection', 'of', 'tweets', 'with', 'a', 'set', 'of', 'abuserelated', 'labels', 'in', 'fact', 'by', 'applying', 'our', 'methodology', 'including', 'statistical', 'analysis', 'for', 'label', 'merging', 'or', 'elimination', 'we', 'identify', 'a', 'reduced', 'but', 'robust', 'set', 'of', 'labels', 'finally', 'we', 'offer', 'a', 'first', 'overview', 'and', 'findings', 'of', 'our', 'collected', 'and', 'annotated', 'dataset', 'of', '100', 'thousand', 'tweets', 'which', 'we', 'make', 'publicly', 'available', 'for', 'further', 'scientific', 'exploration']] | [-0.0818572843734942, 0.024325033102136597, -0.06428077362532562, 0.029859580988447893, -0.15267276205670308, -0.11106333635226988, 0.07749691652271021, 0.41802800118046646, -0.232821004973341, -0.36120757135179116, 0.09910028542200212, -0.3521995038670652, -0.1740768985754317, 0.23056648897746687, -0.06885081723140662, 0.02559739047770991, 0.09216536104624325, 0.03764438703553477, -0.00986430149333661, -0.2936583698295769, 0.3267625400248696, 0.00663298311205033, 0.32602230483556494, 0.05278053610202144, 0.08706977826762287, 0.001168576245853568, -0.12077453511164468, 0.023306305507910165, -0.09601872514146688, 0.1704954939086319, 0.33601743428255704, 0.22706865478882238, 0.36235919436439873, -0.41754065265550333, -0.20620975185404805, 0.07469769875135492, 0.14606716320576035, 0.11633066002806813, -0.0690003358578799, -0.34660366382997704, 0.07831088715123341, -0.22958575553014218, -0.026732256551108818, -0.1156847508959746, 0.042223091300248226, 0.014732866542865796, -0.21024455206591966, 0.03162505631882916, 0.02395212816362105, 0.16184358880581223, -0.021108340985579965, -0.10863331619732301, 0.045720346419222874, 0.1726554075762739, 0.08986656883772572, -0.027575244563152357, 0.1214726517250871, -0.1456773049526793, -0.15647573027047604, 0.35949732271187446, -0.04144671874066048, -0.1050921065185, 0.2330196350840304, -0.054103833478053705, -0.18226391346303417, 0.061766046204823344, 0.2899381334948189, 0.13581437522490672, -0.1717117549474899, -0.016144646815133883, -0.06725285270744387, 0.1777951655224623, 0.09443236724747454, 0.014877262541695553, 0.1702129509902614, 0.24305366031168138, 0.020004621329922777, 0.12270720488124746, -0.04148932480636765, -0.047252962942858336, -0.21150388842010323, -0.13068141495151556, -0.13784541355939034, 0.040402618363527036, -0.07485390829182613, -0.17386637014501236, 0.4177231855635696, 0.2087068341754596, 0.19960211643620449, 0.05062730787527364, 0.27776414335102717, -0.027701286785818142, 0.07703155647853718, 0.08388109608580742, 0.13834434639498153, -0.051772964163683356, 0.15321661336621378, -0.11750603613875094, 0.08317200084942776, -0.006928130958284087] |
1,802.00394 | Quantitative CLTs for symmetric $U$-statistics using contractions | We consider sequences of symmetric $U$-statistics, not necessarily
Hoeffding-degenerate, both in a one- and multi-dimensional setting, and prove
quantitative central limit theorems (CLTs) based on the use of {\it contraction
operators}. Our results represent an explicit counterpart to analogous criteria
that are available for sequences of random variables living on the Gaussian,
Poisson or Rademacher chaoses, and are perfectly tailored for geometric
applications. As a demonstration of this fact, we develop explicit bounds for
subgraph counting in generalised random graphs on Euclidean spaces; special
attention is devoted to the so-called `dense parameter regime' for uniformly
distributed points, for which we deduce CLTs that are new even in their
qualitative statement, and that substantially extend classical findings by
Jammalamadaka and Janson (1986) and Bhattacharaya and Ghosh (1992).
| math.PR | we consider sequences of symmetric ustatistics not necessarily hoeffdingdegenerate both in a one and multidimensional setting and prove quantitative central limit theorems clts based on the use of it contraction operators our results represent an explicit counterpart to analogous criteria that are available for sequences of random variables living on the gaussian poisson or rademacher chaoses and are perfectly tailored for geometric applications as a demonstration of this fact we develop explicit bounds for subgraph counting in generalised random graphs on euclidean spaces special attention is devoted to the socalled dense parameter regime for uniformly distributed points for which we deduce clts that are new even in their qualitative statement and that substantially extend classical findings by jammalamadaka and janson 1986 and bhattacharaya and ghosh 1992 | [['we', 'consider', 'sequences', 'of', 'symmetric', 'ustatistics', 'not', 'necessarily', 'hoeffdingdegenerate', 'both', 'in', 'a', 'one', 'and', 'multidimensional', 'setting', 'and', 'prove', 'quantitative', 'central', 'limit', 'theorems', 'clts', 'based', 'on', 'the', 'use', 'of', 'it', 'contraction', 'operators', 'our', 'results', 'represent', 'an', 'explicit', 'counterpart', 'to', 'analogous', 'criteria', 'that', 'are', 'available', 'for', 'sequences', 'of', 'random', 'variables', 'living', 'on', 'the', 'gaussian', 'poisson', 'or', 'rademacher', 'chaoses', 'and', 'are', 'perfectly', 'tailored', 'for', 'geometric', 'applications', 'as', 'a', 'demonstration', 'of', 'this', 'fact', 'we', 'develop', 'explicit', 'bounds', 'for', 'subgraph', 'counting', 'in', 'generalised', 'random', 'graphs', 'on', 'euclidean', 'spaces', 'special', 'attention', 'is', 'devoted', 'to', 'the', 'socalled', 'dense', 'parameter', 'regime', 'for', 'uniformly', 'distributed', 'points', 'for', 'which', 'we', 'deduce', 'clts', 'that', 'are', 'new', 'even', 'in', 'their', 'qualitative', 'statement', 'and', 'that', 'substantially', 'extend', 'classical', 'findings', 'by', 'jammalamadaka', 'and', 'janson', '1986', 'and', 'bhattacharaya', 'and', 'ghosh', '1992']] | [-0.07218571094468584, 0.08380932530860996, -0.078974628162275, 0.12433976479862793, -0.07510493347815018, -0.12567067140243887, 0.08245939838631851, 0.3708023244166762, -0.23160198271819732, -0.22873514946701565, 0.15511360601900614, -0.25549321641153616, -0.17920617558766247, 0.2363813410426028, -0.16024349150967185, 0.051157895956430735, 0.06074406955451742, 0.02376231486810659, -0.027639433832430258, -0.2657885949820189, 0.335014887427631, -0.009624798282435754, 0.26898051051771255, 0.009892567599426985, 0.059234561425126425, 0.07550856270410908, -0.07921520867801415, -0.0029876697780110125, -0.16237177642915782, 0.14685227405336662, 0.2634400081767784, 0.08487643994867983, 0.26306280508879726, -0.40239868141953056, -0.2048969970470885, 0.15838672090473213, 0.11894036629152052, 0.0818980504537183, -0.04709763967785113, -0.28920848201203153, 0.07863219972222862, -0.11499522269393007, -0.1302215049149302, -0.12563387813364588, 0.018680902186599447, 0.08199704993881543, -0.32406493385769125, 0.07453623587053602, 0.1884587909572008, 0.04600293808654556, -0.025296734621354598, -0.1300268513566958, 0.061981454985670564, 0.10714378485520469, -0.0011071731531386816, 0.00046425251615786456, 0.061700527881824875, -0.06382518662026197, -0.1650835386802995, 0.33094318649671, -0.027655031920100253, -0.2230692897749141, 0.18306579908197065, -0.13693071523211836, -0.2142554588456888, 0.05433677695029059, 0.16330734393521537, 0.15672626734779374, -0.13354647712312578, 0.1272277439404014, -0.09012548254454524, 0.09171480120905501, 0.10794959337321844, 0.04533421825920421, 0.12146332604163212, 0.06751264405353524, 0.09915389828961267, 0.1662251806753589, 0.003164962102560614, -0.15571187429150898, -0.3139956423376755, -0.13229282475474133, -0.21996195256195175, 0.05920395345772083, -0.15082064307234685, -0.21047751552413968, 0.31008389129727415, 0.12639546374046448, 0.18648066652590425, 0.14194608623506424, 0.21583769624916518, 0.10513071155902452, -0.010012023738942466, 0.09097064412539689, 0.18020640130578805, 0.20203875726263032, 0.0684468780977394, -0.07213341098324191, 0.04640242367664852, 0.13954204473477916] |
1,802.00395 | Ge hole spin qubit | Holes confined in quantum dots have gained considerable interest in the past
few years due to their potential as spin qubits. Here we demonstrate double
quantum dot devices in Ge hut wires. Low temperature transport measurements
reveal Pauli spin blockade. We demonstrate electric-dipole spin resonance by
applying a radio frequency electric field to one of the electrodes defining the
double quantum dot. Next, we induce coherent hole spin oscillations by varying
the duration of the microwave burst. Rabi oscillations with frequencies
reaching 140MHz are observed. Finally, Ramsey experiments reveal dephasing
times of 130ns. The reported results emphasize the potential of Ge as a
platform for fast and scalable hole spin qubit devices.
| cond-mat.mes-hall | holes confined in quantum dots have gained considerable interest in the past few years due to their potential as spin qubits here we demonstrate double quantum dot devices in ge hut wires low temperature transport measurements reveal pauli spin blockade we demonstrate electricdipole spin resonance by applying a radio frequency electric field to one of the electrodes defining the double quantum dot next we induce coherent hole spin oscillations by varying the duration of the microwave burst rabi oscillations with frequencies reaching 140mhz are observed finally ramsey experiments reveal dephasing times of 130ns the reported results emphasize the potential of ge as a platform for fast and scalable hole spin qubit devices | [['holes', 'confined', 'in', 'quantum', 'dots', 'have', 'gained', 'considerable', 'interest', 'in', 'the', 'past', 'few', 'years', 'due', 'to', 'their', 'potential', 'as', 'spin', 'qubits', 'here', 'we', 'demonstrate', 'double', 'quantum', 'dot', 'devices', 'in', 'ge', 'hut', 'wires', 'low', 'temperature', 'transport', 'measurements', 'reveal', 'pauli', 'spin', 'blockade', 'we', 'demonstrate', 'electricdipole', 'spin', 'resonance', 'by', 'applying', 'a', 'radio', 'frequency', 'electric', 'field', 'to', 'one', 'of', 'the', 'electrodes', 'defining', 'the', 'double', 'quantum', 'dot', 'next', 'we', 'induce', 'coherent', 'hole', 'spin', 'oscillations', 'by', 'varying', 'the', 'duration', 'of', 'the', 'microwave', 'burst', 'rabi', 'oscillations', 'with', 'frequencies', 'reaching', '140mhz', 'are', 'observed', 'finally', 'ramsey', 'experiments', 'reveal', 'dephasing', 'times', 'of', '130ns', 'the', 'reported', 'results', 'emphasize', 'the', 'potential', 'of', 'ge', 'as', 'a', 'platform', 'for', 'fast', 'and', 'scalable', 'hole', 'spin', 'qubit', 'devices']] | [-0.19700416357849132, 0.25350021887993945, 0.05442273643883792, 0.015326171927154065, 0.0016782675425268032, -0.218983141917058, 0.0765502887121825, 0.43406469239429996, -0.2153207151727243, -0.30916279154745013, 0.004078131961763244, -0.2886015307158232, -0.09300030812737532, 0.2991322674217041, 0.01731635251040147, 0.045913669289174404, 0.04904266893863678, -0.021001558831300247, -0.08214759340679104, -0.19403137344144686, 0.22552373209036886, 0.03931955315109173, 0.293452042946592, 0.06881723949177698, 0.09214492219246247, 0.008893217523158952, 0.09585595474663106, -0.032119935770011085, -0.1296206041559344, 0.026688404897735878, 0.26098989732563493, -0.013740789961196822, 0.2281910577788949, -0.522045930407264, -0.21067407401278615, 0.026917972237887708, 0.15935124690374572, 0.202377840150571, -0.11893935022367673, -0.331897495390678, 0.0042870164256204255, -0.20681235495827754, -0.09439413353181655, -0.08243535717377778, 0.046571886360602964, 0.026875915221700613, -0.19754787150939757, 0.09896170115733349, 0.05104401603933762, 0.009964060842652212, 0.0056808037371163, -0.06732979949182746, 0.03556056020739065, 0.07623770497739316, 0.011416301876306535, 0.010456123833798549, 0.24522014931902628, -0.08288288590000857, -0.23024002832614562, 0.25936617615040053, -0.05623321751058525, -0.060234506087462336, 0.1102395093745806, -0.26879874495736494, -0.04788424881513823, 0.08355910025685179, 0.12514884235676038, 0.09373155964157459, -0.12913529586406763, 0.09048095526020254, 0.051494431174995206, 0.17573493217880076, 0.09011753726623614, 0.1730015988800336, 0.3172638085670769, 0.18341615319844673, 0.05181504456876693, 0.11660336115958424, -0.1796112629838965, -0.07333367754789916, -0.19624080048366027, -0.14870169445533643, -0.246615593270822, 0.17488204563361995, -0.06762035394243536, -0.12831417074088347, 0.41351015091111715, 0.13570043853674593, 0.1548153044804084, -0.06539102378512987, 0.2513025993329476, 0.1225769644994712, 0.09349021019879729, 0.007316438218748027, 0.2882212551733987, 0.26015738256868315, 0.09877239601178603, -0.33919384454546325, -0.03254500347274271, -0.08229543344879692] |
1,802.00396 | Disunited Nations? A Multiplex Network Approach to Detecting Preference
Affinity Blocs using Texts and Votes | This paper contributes to an emerging literature that models votes and text
in tandem to better understand polarization of expressed preferences. It
introduces a new approach to estimate preference polarization in
multidimensional settings, such as international relations, based on
developments in the natural language processing and network science literatures
-- namely word embeddings, which retain valuable syntactical qualities of human
language, and community detection in multilayer networks, which locates densely
connected actors across multiple, complex networks. We find that the employment
of these tools in tandem helps to better estimate states' foreign policy
preferences expressed in UN votes and speeches beyond that permitted by votes
alone. The utility of these located affinity blocs is demonstrated through an
application to conflict onset in International Relations, though these tools
will be of interest to all scholars faced with the measurement of preferences
and polarization in multidimensional settings.
| cs.CL cs.CY cs.SI physics.soc-ph | this paper contributes to an emerging literature that models votes and text in tandem to better understand polarization of expressed preferences it introduces a new approach to estimate preference polarization in multidimensional settings such as international relations based on developments in the natural language processing and network science literatures namely word embeddings which retain valuable syntactical qualities of human language and community detection in multilayer networks which locates densely connected actors across multiple complex networks we find that the employment of these tools in tandem helps to better estimate states foreign policy preferences expressed in un votes and speeches beyond that permitted by votes alone the utility of these located affinity blocs is demonstrated through an application to conflict onset in international relations though these tools will be of interest to all scholars faced with the measurement of preferences and polarization in multidimensional settings | [['this', 'paper', 'contributes', 'to', 'an', 'emerging', 'literature', 'that', 'models', 'votes', 'and', 'text', 'in', 'tandem', 'to', 'better', 'understand', 'polarization', 'of', 'expressed', 'preferences', 'it', 'introduces', 'a', 'new', 'approach', 'to', 'estimate', 'preference', 'polarization', 'in', 'multidimensional', 'settings', 'such', 'as', 'international', 'relations', 'based', 'on', 'developments', 'in', 'the', 'natural', 'language', 'processing', 'and', 'network', 'science', 'literatures', 'namely', 'word', 'embeddings', 'which', 'retain', 'valuable', 'syntactical', 'qualities', 'of', 'human', 'language', 'and', 'community', 'detection', 'in', 'multilayer', 'networks', 'which', 'locates', 'densely', 'connected', 'actors', 'across', 'multiple', 'complex', 'networks', 'we', 'find', 'that', 'the', 'employment', 'of', 'these', 'tools', 'in', 'tandem', 'helps', 'to', 'better', 'estimate', 'states', 'foreign', 'policy', 'preferences', 'expressed', 'in', 'un', 'votes', 'and', 'speeches', 'beyond', 'that', 'permitted', 'by', 'votes', 'alone', 'the', 'utility', 'of', 'these', 'located', 'affinity', 'blocs', 'is', 'demonstrated', 'through', 'an', 'application', 'to', 'conflict', 'onset', 'in', 'international', 'relations', 'though', 'these', 'tools', 'will', 'be', 'of', 'interest', 'to', 'all', 'scholars', 'faced', 'with', 'the', 'measurement', 'of', 'preferences', 'and', 'polarization', 'in', 'multidimensional', 'settings']] | [-0.06829781394723493, 0.026999461985421174, -0.03653614410561406, 0.11067944634770457, -0.15204044854100277, -0.1396625321455455, 0.08354706044337945, 0.4066126028386255, -0.2924161541062252, -0.34365221427287906, 0.04989535741495072, -0.30882257957839304, -0.18383604553026897, 0.1749530257139769, -0.1355736479615896, 0.02082241570052348, 0.07149439219089497, 0.04691020254459646, 0.007891367323787158, -0.2784601517519655, 0.2900972707559251, 0.0628454971075472, 0.34458733996143565, 0.01779830185114406, 0.06894192553914359, 0.039298211227610916, -0.0628399101854787, 0.025058802067683753, -0.07889594141059003, 0.2043400464830888, 0.393137337744545, 0.22791893225156754, 0.3218792276974354, -0.43864868173841387, -0.18964847829192877, 0.0908118848294382, 0.12995253400489068, 0.051973024750218935, -0.01357225652241646, -0.31751219923737356, 0.029625086550367996, -0.19382350063662873, -0.046615079779359, -0.08931147208527869, 0.010775323225162638, 0.025914167330483906, -0.251445516696549, 0.027694363493032545, 0.04789975987963165, 0.07196206074311501, -0.03872707645253589, -0.10925843344496873, -0.020501013373076502, 0.20939336826429805, 0.062311826055115996, 0.00013327788070051206, 0.12872415976663534, -0.16717630071474965, -0.18594766234875554, 0.3934745578994302, -0.03704033982163916, -0.1809166301908489, 0.18432514098660452, -0.12202625925258165, -0.19535824730862966, 0.04235223976946953, 0.23843570114372092, 0.05581295419122196, -0.17632785727053285, 0.003106672243625831, -0.03583088809520834, 0.2033387583101608, 0.10003655099596169, 0.04203781597122239, 0.23993481412536413, 0.18067711497941571, 0.03824062688040107, 0.07281614018413368, -0.01376925367286377, -0.1158753350557365, -0.2076847729917467, -0.13660990979729426, -0.11874010129071798, -0.021976227162263565, -0.07275046108679817, -0.14333422399229473, 0.3703394617833611, 0.1872098427121374, 0.14982346318073622, 0.0435204812203867, 0.2625033024103484, 0.023418537637755636, 0.09595067519209503, 0.04411417375538602, 0.17071460939930855, 0.06146110443094383, 0.1578393948600731, -0.12599362759909935, 0.1465776845968018, -0.004044156215968542] |
1,802.00397 | Global-local mixing for the Boole map | In the context of 'infinite-volume mixing' we prove global-local mixing for
the Boole map, a.k.a. Boole transformation, which is the prototype of a
non-uniformly expanding map with two neutral fixed points. Global-local mixing
amounts to the decorrelation of all pairs of global and local observables. In
terms of the equilibrium properties of the system it means that the evolution
of every absolutely continuous probability measure converges, in a certain
precise sense, to an averaging functional over the entire space.
| math.DS nlin.CD | in the context of infinitevolume mixing we prove globallocal mixing for the boole map aka boole transformation which is the prototype of a nonuniformly expanding map with two neutral fixed points globallocal mixing amounts to the decorrelation of all pairs of global and local observables in terms of the equilibrium properties of the system it means that the evolution of every absolutely continuous probability measure converges in a certain precise sense to an averaging functional over the entire space | [['in', 'the', 'context', 'of', 'infinitevolume', 'mixing', 'we', 'prove', 'globallocal', 'mixing', 'for', 'the', 'boole', 'map', 'aka', 'boole', 'transformation', 'which', 'is', 'the', 'prototype', 'of', 'a', 'nonuniformly', 'expanding', 'map', 'with', 'two', 'neutral', 'fixed', 'points', 'globallocal', 'mixing', 'amounts', 'to', 'the', 'decorrelation', 'of', 'all', 'pairs', 'of', 'global', 'and', 'local', 'observables', 'in', 'terms', 'of', 'the', 'equilibrium', 'properties', 'of', 'the', 'system', 'it', 'means', 'that', 'the', 'evolution', 'of', 'every', 'absolutely', 'continuous', 'probability', 'measure', 'converges', 'in', 'a', 'certain', 'precise', 'sense', 'to', 'an', 'averaging', 'functional', 'over', 'the', 'entire', 'space']] | [-0.1170203383423276, 0.13408325260222884, -0.11644831224627604, 0.05214536817938891, 0.021626733104945926, -0.05031348856849761, 0.04439167987225177, 0.3232610814179046, -0.3401351543084447, -0.20411774852089112, 0.0869497751089143, -0.2658418759915836, -0.12488924129571341, 0.14162058413140713, -0.04920036576782601, 0.10174429467643457, 0.046272553644980056, 0.02311327405969459, -0.13821524476832886, -0.21528188596314551, 0.34539569928487646, 0.02171855806549893, 0.27425243238670916, -0.0332233996802493, 0.17494288483587436, 0.02746311777648575, -0.04459570152567157, -0.001374978719859773, -0.11045548604269692, 0.12743149003414792, 0.1695903865528393, 0.13770563649072584, 0.2611163775908136, -0.31984016579049757, -0.20442032221044543, 0.20730608021486788, 0.11373823435529123, 0.035940761166024966, -0.00365484807098025, -0.2921347776427865, 0.04653977642802498, -0.1404648857969272, -0.14364212905823054, -0.10141778736127706, 0.024744228937344837, 0.05518232579519854, -0.3277684340159161, 0.05656401852831573, 0.07586764586688596, 0.07135833727189965, -0.04481478225251165, -0.028796116560638612, -0.06955738115725638, 0.15638224428955796, 0.03097057607484675, 0.030718060210347176, 0.11823559820554749, -0.09305544519396144, -0.04116643384788657, 0.3602629129898652, -0.12014061890990485, -0.2362133473941844, 0.18148127413956047, -0.18164476677421718, -0.16762973913404194, 0.12766624127125628, 0.10383004368624732, 0.11947488014975303, -0.16109254582537502, 0.13729278745551157, -0.11120496080787498, 0.1386718814013691, 0.08468504259480705, 0.04892100863559525, 0.17090512032154948, 0.11818355463350876, 0.1652085095337486, 0.10916656677764427, -0.03498727367392187, -0.14552679947353428, -0.3530697701380977, -0.19271154831387574, -0.14971585613174387, 0.06273473011730593, -0.11365878311279849, -0.2096521265427523, 0.40753307645621745, 0.11668634786022992, 0.2350978063849756, 0.06411448458970018, 0.21998851701522928, 0.11595867303070388, 0.029583539190419207, 0.06550010618506165, 0.18339692225349666, 0.14088743277000193, 0.06743594604880325, -0.1992698364973634, 0.05757929666757678, 0.12866364263846905] |
1,802.00398 | The FLAME laser at SPARC_LAB | FLAME is a high power laser system installed at the SPARC_LAB Test Facility
in Frascati (Italy). The ultra-intense laser pulses are employed to study the
interaction with matter for many purposes: electron acceleration through LWFA,
ion and proton generation exploiting the TNSA mechanism, study of new radiation
sources and development of new electron diagnostics. In this work, an overview
of the FLAME laser system will be given, together with recent experimental
results
| physics.acc-ph | flame is a high power laser system installed at the sparc_lab test facility in frascati italy the ultraintense laser pulses are employed to study the interaction with matter for many purposes electron acceleration through lwfa ion and proton generation exploiting the tnsa mechanism study of new radiation sources and development of new electron diagnostics in this work an overview of the flame laser system will be given together with recent experimental results | [['flame', 'is', 'a', 'high', 'power', 'laser', 'system', 'installed', 'at', 'the', 'sparc_lab', 'test', 'facility', 'in', 'frascati', 'italy', 'the', 'ultraintense', 'laser', 'pulses', 'are', 'employed', 'to', 'study', 'the', 'interaction', 'with', 'matter', 'for', 'many', 'purposes', 'electron', 'acceleration', 'through', 'lwfa', 'ion', 'and', 'proton', 'generation', 'exploiting', 'the', 'tnsa', 'mechanism', 'study', 'of', 'new', 'radiation', 'sources', 'and', 'development', 'of', 'new', 'electron', 'diagnostics', 'in', 'this', 'work', 'an', 'overview', 'of', 'the', 'flame', 'laser', 'system', 'will', 'be', 'given', 'together', 'with', 'recent', 'experimental', 'results']] | [-0.057649072531300284, 0.21908399147266916, -0.0851443811164548, 0.030219705439069204, -0.0215482673924675, -0.17241191422524732, -0.05324758058284513, 0.401918650611252, -0.18343269243551832, -0.32810203816431266, 0.037176020168569975, -0.29478512494824827, 0.022929972807307623, 0.3345025218764527, -0.012587797433500074, 0.07357718299479327, 0.10314050065870914, -0.0794928713746938, 0.03847823847091705, -0.16143156518228352, 0.2757116215717461, 0.2402861505591621, 0.32611441801095176, 0.10505574910591046, 0.1483407064418619, -0.027497227218797587, -0.008596682539468424, -0.09004843385062283, -0.11709610147550444, 0.08038247566178648, 0.27956594559186165, 0.10639955165485541, 0.2718108446440763, -0.49716093476551276, -0.23980438080616295, 0.02280581960480453, 0.10620595201099706, 0.10085200012286401, -0.17734680830229385, -0.2755650513831319, 0.002499595297397011, -0.22793015730308575, -0.1695224195977466, 0.008327576299456673, -0.03309204896989589, 0.14518079008363807, -0.3003715800490075, -0.0948935007262561, -0.027408996254153963, 0.07497358873176078, -0.03910635616112915, -0.04503763318643905, 0.08447146539886792, 0.028882323240395635, 0.05889021075240129, 0.107329090927831, 0.2037164177446458, -0.1284278868277195, -0.09502771644232173, 0.37949963053688407, -0.05368939830320111, -0.031313355598184794, 0.16924473885188085, -0.22463318339497265, -0.08737248955811891, 0.13614746435390165, 0.22085147254013768, 0.09641449405899039, -0.1868807591446158, 0.004468984124186035, 0.02765663330339723, 0.14970820627326653, 0.12629078950137934, 0.028893135927824512, 0.24013815217444467, 0.2731985304401153, 0.011673385942736382, 0.12071852879974661, -0.1403731626148025, 0.011712279946853718, -0.3066197375948023, -0.13115492685594493, -0.11915761695450379, -0.015228362217183329, 0.020340295541245723, -0.04857783822080819, 0.41879123946030933, 0.15393857820890844, 0.046203252031571336, -0.11199962757463153, 0.35541072831903064, 0.09492455435813302, -0.01667914676686956, 0.02475019750676842, 0.26386267552799025, 0.12382626862058209, 0.17815922283464009, -0.25332393058084157, 0.0014929411651489015, 0.022595042112192862] |
1,802.00399 | Classical properties of non-local, ghost- and singularity-free gravity | In this paper we will show all the linearized curvature tensors in the
infinite derivative ghost and singularity free theory of gravity in the static
limit. We have found that in the region of non-locality, in the ultraviolet
regime (at short distance from the source), the Ricci tensor and the Ricci
scalar are not vanishing, meaning that we do not have a vacuum solution anymore
due to the smearing of the source induced by the presence of non-local
gravitational interactions. It also follows that, unlike in Einstein's gravity,
the Riemann tensor is not traceless and it does not coincide with the Weyl
tensor. Secondly, these curvatures are regularized at short distances such that
they are singularity-free, in particular the same happens for the Kretschmann
invariant. Unlike the others, the Weyl tensor vanishes at short distances,
implying that the spacetime metric becomes conformally flat in the region of
non-locality, in the ultraviolet. As a consequence, the non-local region can be
approximated by a conformally flat manifold with non-negative constant
curvatures. We briefly discuss the solution in the non-linear regime, and argue
that $1/r$ metric potential cannot be the solution where non-locality is
important in the ultraviolet regime.
| gr-qc hep-th | in this paper we will show all the linearized curvature tensors in the infinite derivative ghost and singularity free theory of gravity in the static limit we have found that in the region of nonlocality in the ultraviolet regime at short distance from the source the ricci tensor and the ricci scalar are not vanishing meaning that we do not have a vacuum solution anymore due to the smearing of the source induced by the presence of nonlocal gravitational interactions it also follows that unlike in einsteins gravity the riemann tensor is not traceless and it does not coincide with the weyl tensor secondly these curvatures are regularized at short distances such that they are singularityfree in particular the same happens for the kretschmann invariant unlike the others the weyl tensor vanishes at short distances implying that the spacetime metric becomes conformally flat in the region of nonlocality in the ultraviolet as a consequence the nonlocal region can be approximated by a conformally flat manifold with nonnegative constant curvatures we briefly discuss the solution in the nonlinear regime and argue that 1r metric potential cannot be the solution where nonlocality is important in the ultraviolet regime | [['in', 'this', 'paper', 'we', 'will', 'show', 'all', 'the', 'linearized', 'curvature', 'tensors', 'in', 'the', 'infinite', 'derivative', 'ghost', 'and', 'singularity', 'free', 'theory', 'of', 'gravity', 'in', 'the', 'static', 'limit', 'we', 'have', 'found', 'that', 'in', 'the', 'region', 'of', 'nonlocality', 'in', 'the', 'ultraviolet', 'regime', 'at', 'short', 'distance', 'from', 'the', 'source', 'the', 'ricci', 'tensor', 'and', 'the', 'ricci', 'scalar', 'are', 'not', 'vanishing', 'meaning', 'that', 'we', 'do', 'not', 'have', 'a', 'vacuum', 'solution', 'anymore', 'due', 'to', 'the', 'smearing', 'of', 'the', 'source', 'induced', 'by', 'the', 'presence', 'of', 'nonlocal', 'gravitational', 'interactions', 'it', 'also', 'follows', 'that', 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1,802.004 | A Comparison of Word Embeddings for the Biomedical Natural Language
Processing | Word embeddings have been widely used in biomedical Natural Language
Processing (NLP) applications as they provide vector representations of words
capturing the semantic properties of words and the linguistic relationship
between words. Many biomedical applications use different textual resources
(e.g., Wikipedia and biomedical articles) to train word embeddings and apply
these word embeddings to downstream biomedical applications. However, there has
been little work on evaluating the word embeddings trained from these
resources.In this study, we provide an empirical evaluation of word embeddings
trained from four different resources, namely clinical notes, biomedical
publications, Wikipedia, and news. We performed the evaluation qualitatively
and quantitatively. For the qualitative evaluation, we manually inspected five
most similar medical words to a given set of target medical words, and then
analyzed word embeddings through the visualization of those word embeddings.
For the quantitative evaluation, we conducted both intrinsic and extrinsic
evaluation. Based on the evaluation results, we can draw the following
conclusions. First, the word embeddings trained on clinical notes and
biomedical publications can capture the semantics of medical terms better, and
find more relevant similar medical terms, and are closer to human experts'
judgments, compared to these trained on Wikipedia and news. Second, there does
not exist a consistent global ranking of word embedding quality for downstream
biomedical NLP applications. However, adding word embeddings as extra features
will improve results on most downstream tasks. Finally, the word embeddings
trained on biomedical domain corpora do not necessarily have better performance
than those trained on other general domain corpora for any downstream
biomedical NLP tasks.
| cs.IR | word embeddings have been widely used in biomedical natural language processing nlp applications as they provide vector representations of words capturing the semantic properties of words and the linguistic relationship between words many biomedical applications use different textual resources eg wikipedia and biomedical articles to train word embeddings and apply these word embeddings to downstream biomedical applications however there has been little work on evaluating the word embeddings trained from these resourcesin this study we provide an empirical evaluation of word embeddings trained from four different resources namely clinical notes biomedical publications wikipedia and news we performed the evaluation qualitatively and quantitatively for the qualitative evaluation we manually inspected five most similar medical words to a given set of target medical words and then analyzed word embeddings through the visualization of those word embeddings for the quantitative evaluation we conducted both intrinsic and extrinsic evaluation based on the evaluation results we can draw the following conclusions first the word embeddings trained on clinical notes and biomedical publications can capture the semantics of medical terms better and find more relevant similar medical terms and are closer to human experts judgments compared to these trained on wikipedia and news second there does not exist a consistent global ranking of word embedding quality for downstream biomedical nlp applications however adding word embeddings as extra features will improve results on most downstream tasks finally the word embeddings trained on biomedical domain corpora do not necessarily have better performance than those trained on other general domain corpora for any downstream biomedical nlp tasks | [['word', 'embeddings', 'have', 'been', 'widely', 'used', 'in', 'biomedical', 'natural', 'language', 'processing', 'nlp', 'applications', 'as', 'they', 'provide', 'vector', 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1,802.00401 | Bayesian Inference for Randomized Benchmarking Protocols | Randomized benchmarking (RB) protocols are standard tools for characterizing
quantum devices. Prior analyses of RB protocols have not provided a complete
method for analyzing realistic data, resulting in a variety of ad-hoc methods.
The main confounding factor in rigorously analyzing data from RB protocols is
an unknown and noise-dependent distribution of survival probabilities over
random sequences. We propose a hierarchical Bayesian method where these
survival distributions are modeled as nonparametric Dirichlet process mixtures.
Our method infers parameters of interest without additional assumptions about
the underlying physical noise process. We show with numerical examples that our
method works robustly for both standard and highly pathological error models.
Our method also works reliably at low noise levels and with little data because
we avoid the asymptotic assumptions of commonly used methods such as
least-squares fitting. For example, our method produces a narrow and consistent
posterior for the average gate fidelity from ten random sequences per sequence
length in the standard RB protocol.
| quant-ph | randomized benchmarking rb protocols are standard tools for characterizing quantum devices prior analyses of rb protocols have not provided a complete method for analyzing realistic data resulting in a variety of adhoc methods the main confounding factor in rigorously analyzing data from rb protocols is an unknown and noisedependent distribution of survival probabilities over random sequences we propose a hierarchical bayesian method where these survival distributions are modeled as nonparametric dirichlet process mixtures our method infers parameters of interest without additional assumptions about the underlying physical noise process we show with numerical examples that our method works robustly for both standard and highly pathological error models our method also works reliably at low noise levels and with little data because we avoid the asymptotic assumptions of commonly used methods such as leastsquares fitting for example our method produces a narrow and consistent posterior for the average gate fidelity from ten random sequences per sequence length in the standard rb protocol | [['randomized', 'benchmarking', 'rb', 'protocols', 'are', 'standard', 'tools', 'for', 'characterizing', 'quantum', 'devices', 'prior', 'analyses', 'of', 'rb', 'protocols', 'have', 'not', 'provided', 'a', 'complete', 'method', 'for', 'analyzing', 'realistic', 'data', 'resulting', 'in', 'a', 'variety', 'of', 'adhoc', 'methods', 'the', 'main', 'confounding', 'factor', 'in', 'rigorously', 'analyzing', 'data', 'from', 'rb', 'protocols', 'is', 'an', 'unknown', 'and', 'noisedependent', 'distribution', 'of', 'survival', 'probabilities', 'over', 'random', 'sequences', 'we', 'propose', 'a', 'hierarchical', 'bayesian', 'method', 'where', 'these', 'survival', 'distributions', 'are', 'modeled', 'as', 'nonparametric', 'dirichlet', 'process', 'mixtures', 'our', 'method', 'infers', 'parameters', 'of', 'interest', 'without', 'additional', 'assumptions', 'about', 'the', 'underlying', 'physical', 'noise', 'process', 'we', 'show', 'with', 'numerical', 'examples', 'that', 'our', 'method', 'works', 'robustly', 'for', 'both', 'standard', 'and', 'highly', 'pathological', 'error', 'models', 'our', 'method', 'also', 'works', 'reliably', 'at', 'low', 'noise', 'levels', 'and', 'with', 'little', 'data', 'because', 'we', 'avoid', 'the', 'asymptotic', 'assumptions', 'of', 'commonly', 'used', 'methods', 'such', 'as', 'leastsquares', 'fitting', 'for', 'example', 'our', 'method', 'produces', 'a', 'narrow', 'and', 'consistent', 'posterior', 'for', 'the', 'average', 'gate', 'fidelity', 'from', 'ten', 'random', 'sequences', 'per', 'sequence', 'length', 'in', 'the', 'standard', 'rb', 'protocol']] | [-0.029844903114098997, 0.04288813404937173, -0.0741125965345418, 0.10638328503857793, -0.0031456743585295045, -0.18674053711292798, 0.11816028974935762, 0.4321246713167056, -0.23822037599165924, -0.3279962688044179, 0.0905402694024815, -0.22678011643292847, -0.14149226645822638, 0.24986632570507936, -0.1037080987211084, 0.14259325402454123, 0.09870247895596548, -0.007034529960947111, -0.05726252235399443, -0.250756784893747, 0.29086481318809093, 0.04732168497357634, 0.3106413356726989, -0.04717188532813452, 0.07807573157988372, 0.0029742689628619702, -0.05497941376233939, -0.028249198183766568, -0.10798922817507446, 0.09375066638749559, 0.24560642368553545, 0.1793497730308445, 0.30376953200029677, -0.4004766812373418, -0.2732587683247402, 0.12005277580174152, 0.15010490012937225, 0.1632639560099051, -0.04251783623476513, -0.2860639772261493, 0.08198251767753391, -0.15129094711373908, -0.08233021803162047, -0.13606312263873405, -0.03595131221809424, 0.042427051169943296, -0.3627447339735227, 0.11402501637912792, 0.044265647639986125, 0.08940425310865976, -0.03095911558093576, -0.16040516626089812, 0.0497103768044326, 0.11351121629559202, 0.026324592096716514, -0.02527182631674805, 0.14908022982708644, -0.08670476216246925, -0.1280917643511202, 0.31154205824714154, -0.07067626645439304, -0.2248446730780415, 0.16757753906858852, -0.07139116309117526, -0.1605475892953109, 0.12963603668031282, 0.15797078497635084, 0.14089082406717351, -0.17307533192215488, 0.03230042837694782, -0.017494001886370826, 0.193908700299653, 0.028485527721932156, 0.026456062265788206, 0.13146426149469334, 0.17533355460182065, 0.013137752284819726, 0.09062832762720063, -0.1198306603851961, -0.11658695578371407, -0.27824457879178227, -0.10627132978661394, -0.19631419609941075, 0.0038074429133303058, -0.1452633007629629, -0.17642883926309877, 0.357482137682382, 0.1976213057700079, 0.20297082074102946, 0.06454657545546069, 0.36194682578061477, 0.07516814514674479, 0.028107987402472646, 0.07346267653920222, 0.1340121088840533, 0.10929806134736282, 0.0398638249396754, -0.16462425000463554, 0.14999339086352848, -0.010243077931227163] |
1,802.00402 | Analysis of WDM-PON for Next-Generation Back- and Fronthaul | An analysis of next-generation infrastructure for mobile back- and fronthaul
is presented. The same infrastructure can be used for wireline backhaul and
dedicated business access. Possible coexistence with FTTH residential access
based on NG-PON2 TWDM is also analyzed. Further, different locations for pools
of base-band units in fronthaul scenarios are compared with regard to resulting
cost. It turns out that fronthaul with highly concentrated base-band unit pools
can be cost-efficient even if fronthaul bit rates reach 10 Gb/s.
| cs.NI | an analysis of nextgeneration infrastructure for mobile back and fronthaul is presented the same infrastructure can be used for wireline backhaul and dedicated business access possible coexistence with ftth residential access based on ngpon2 twdm is also analyzed further different locations for pools of baseband units in fronthaul scenarios are compared with regard to resulting cost it turns out that fronthaul with highly concentrated baseband unit pools can be costefficient even if fronthaul bit rates reach 10 gbs | [['an', 'analysis', 'of', 'nextgeneration', 'infrastructure', 'for', 'mobile', 'back', 'and', 'fronthaul', 'is', 'presented', 'the', 'same', 'infrastructure', 'can', 'be', 'used', 'for', 'wireline', 'backhaul', 'and', 'dedicated', 'business', 'access', 'possible', 'coexistence', 'with', 'ftth', 'residential', 'access', 'based', 'on', 'ngpon2', 'twdm', 'is', 'also', 'analyzed', 'further', 'different', 'locations', 'for', 'pools', 'of', 'baseband', 'units', 'in', 'fronthaul', 'scenarios', 'are', 'compared', 'with', 'regard', 'to', 'resulting', 'cost', 'it', 'turns', 'out', 'that', 'fronthaul', 'with', 'highly', 'concentrated', 'baseband', 'unit', 'pools', 'can', 'be', 'costefficient', 'even', 'if', 'fronthaul', 'bit', 'rates', 'reach', '10', 'gbs']] | [-0.24354540265782118, 0.030308514865388936, 0.05249717378499011, -0.007513025881383906, -0.08661378657614643, -0.2772418014076236, 0.18150243409848832, 0.41385106689163614, -0.28959164620897215, -0.23282398441927388, 0.14985857069849146, -0.260045651576252, -0.09243324086940907, 0.20666931967505, -0.12109903541284722, 0.0177292518632172, 0.06874972351451779, 0.00390920564290378, 0.023125224038633492, -0.3120454811164505, 0.1972541502184029, 0.14977445889736055, 0.4387390519576994, 0.059503086878881825, 0.007847643650874689, -0.056825016927603, -0.03569490748590657, -0.06485229555227152, -0.04189726021248536, 0.0828352540840286, 0.39886975864117796, 0.16601203149184585, 0.2565253306809184, -0.5439803050710009, -0.214014623652805, 0.09866470896771976, 0.18646045108386256, -0.035037837462959354, -0.04326152882550831, -0.2556855403908903, 0.19699195292234034, -0.2582007285763884, -0.028287987127996884, -0.039597517971021984, -0.08131018743015729, 0.0752593883549093, -0.305636328826477, -0.023049432210179722, -0.1294261629681115, 0.01253789666943349, -0.03962953350591389, -0.11361698633628328, -0.04657784630484008, 0.1941891294637961, 0.0025508811080513834, -0.004612013213820271, 0.18583171934421575, -0.0875797150414679, -0.09382644429948035, 0.4264488354349485, 0.0787405843374791, -0.22214849079451102, 0.1629347025126509, -0.04782686312380549, -0.1366482692915801, 0.13134784830504326, 0.25275812806053594, -0.0034411640825693485, -0.22399090974313485, 0.01680414855038723, 0.022666918041257113, 0.17181630250574512, 0.1208292808105516, 0.11241098161024804, 0.23313886960121719, 0.2467457925229539, 0.18601685766033926, 0.13809539321144776, -0.13723681984142727, -0.13051216265673496, -0.1827849071932497, -0.11827118916122557, -0.17970696731482622, 0.04321622396002874, -0.09229130524644544, -0.01506138143020791, 0.2717047878964381, 0.1031557393181682, 0.09934879897476791, 0.09737477348754545, 0.39277207896010585, 0.08054459308782085, 0.16916562090688325, 0.1453163285630864, 0.1421132742914117, 0.032061806240692804, 0.18348549324535318, -0.14276800279251553, 0.05297619835685261, -0.05449494600368591] |
1,802.00403 | Formation of terrestrial planets in eccentric and inclined giant planet
systems | Evidence of mutually inclined planetary orbits has been reported for giant
planets these last years. Here we aim to study the impact of eccentric and
inclined massive giant planets on the terrestrial planet formation process, and
investigate whether it can possibly lead to the existence of inclined
terrestrial planets. We have performed 126 simulations of the late-stage
planetary accretion in eccentric and inclined giant planet systems. The
physical and orbital parameters of the giant planet systems result from n-body
simulations of three giant planets in the late stage of the gas disc, under the
combined action of Type II migration and planet-planet scattering. Fourteen
two- and three-planet configurations have been selected, with diversified
masses, semi-major axes (resonant configurations or not), eccentricities and
inclinations (including coplanar systems) at the dispersal of the gas disc. We
have then followed the gravitational interactions of these systems with an
inner disc of planetesimals and embryos (9 runs per system), studying in detail
the final configurations of the formed terrestrial planets. While coplanar
giant systems harbour several terrestrial planets, generally as massive as the
Earth and mainly on low eccentric and low inclined orbits, terrestrial planets
formed in systems with mutually inclined giant planets are usually fewer, less
massive (<0.5 M_{\Earth}) and with larger eccentricities and inclinations. This
work shows that terrestrial planets can form on stable inclined orbits through
the classical accretion theory, even in coplanar giant planet systems emerging
from the disc phase.
| astro-ph.EP | evidence of mutually inclined planetary orbits has been reported for giant planets these last years here we aim to study the impact of eccentric and inclined massive giant planets on the terrestrial planet formation process and investigate whether it can possibly lead to the existence of inclined terrestrial planets we have performed 126 simulations of the latestage planetary accretion in eccentric and inclined giant planet systems the physical and orbital parameters of the giant planet systems result from nbody simulations of three giant planets in the late stage of the gas disc under the combined action of type ii migration and planetplanet scattering fourteen two and threeplanet configurations have been selected with diversified masses semimajor axes resonant configurations or not eccentricities and inclinations including coplanar systems at the dispersal of the gas disc we have then followed the gravitational interactions of these systems with an inner disc of planetesimals and embryos 9 runs per system studying in detail the final configurations of the formed terrestrial planets while coplanar giant systems harbour several terrestrial planets generally as massive as the earth and mainly on low eccentric and low inclined orbits terrestrial planets formed in systems with mutually inclined giant planets are usually fewer less massive 05 m_earth and with larger eccentricities and inclinations this work shows that terrestrial planets can form on stable inclined orbits through the classical accretion theory even in coplanar giant planet systems emerging from the disc phase | [['evidence', 'of', 'mutually', 'inclined', 'planetary', 'orbits', 'has', 'been', 'reported', 'for', 'giant', 'planets', 'these', 'last', 'years', 'here', 'we', 'aim', 'to', 'study', 'the', 'impact', 'of', 'eccentric', 'and', 'inclined', 'massive', 'giant', 'planets', 'on', 'the', 'terrestrial', 'planet', 'formation', 'process', 'and', 'investigate', 'whether', 'it', 'can', 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1,802.00404 | A Unifying Theory of Exactness of Linear Penalty Functions | In this article we develop a theory of exact linear penalty functions that
generalizes and unifies most of the results on exact penalization existing in
the literature. We discuss several approaches to the study of both locally and
globally exact linear penalty functions, and obtain various necessary and
sufficient conditions for the exactness of a linear penalty function. We pay
more attention than usual to necessary conditions that allows us to deeper
understand the exact penalty technique.
| math.OC | in this article we develop a theory of exact linear penalty functions that generalizes and unifies most of the results on exact penalization existing in the literature we discuss several approaches to the study of both locally and globally exact linear penalty functions and obtain various necessary and sufficient conditions for the exactness of a linear penalty function we pay more attention than usual to necessary conditions that allows us to deeper understand the exact penalty technique | [['in', 'this', 'article', 'we', 'develop', 'a', 'theory', 'of', 'exact', 'linear', 'penalty', 'functions', 'that', 'generalizes', 'and', 'unifies', 'most', 'of', 'the', 'results', 'on', 'exact', 'penalization', 'existing', 'in', 'the', 'literature', 'we', 'discuss', 'several', 'approaches', 'to', 'the', 'study', 'of', 'both', 'locally', 'and', 'globally', 'exact', 'linear', 'penalty', 'functions', 'and', 'obtain', 'various', 'necessary', 'and', 'sufficient', 'conditions', 'for', 'the', 'exactness', 'of', 'a', 'linear', 'penalty', 'function', 'we', 'pay', 'more', 'attention', 'than', 'usual', 'to', 'necessary', 'conditions', 'that', 'allows', 'us', 'to', 'deeper', 'understand', 'the', 'exact', 'penalty', 'technique']] | [-0.06351002150777631, -0.03282423172895978, -0.12242767844022578, 0.13996809890777986, -0.1588787177347808, -0.1495280113651768, 0.06258609165685469, 0.3865022224120118, -0.23772405391686002, -0.24819570008133138, 0.12119211538622228, -0.19605891366943554, -0.2131466447049147, 0.19283014480266478, -0.10024849081097485, 0.10592132479756732, 0.023807137188586323, 0.022311711671774263, -0.176023798444393, -0.2574367125748427, 0.31642740738106434, 0.04293876417077981, 0.2646087802366003, 0.08230446831794916, 0.10611889510439684, 0.025020427001011255, -0.050357575888152824, 0.015075990180303525, -0.22847397435043013, 0.15436066546803945, 0.25994533348780174, 0.13672535278072412, 0.3578221042483271, -0.47065393307379316, -0.20550227392610018, 0.13336138605055484, 0.08498592372657127, 0.12646892666514334, -0.0023764897277351927, -0.19504585512611386, 0.11979836561753378, -0.16973144286493588, -0.11461716965324693, -0.15062656299537652, -0.042617936872623184, 0.033141570936815884, -0.35328784799082324, 0.06434431536026396, 0.09184175099596961, 0.003284388439512098, -0.11529067657697438, -0.1356780112346078, 0.026940889298226443, 0.09635135163734486, 0.09495496476528706, 0.004272230625660582, 0.033761450851505455, -0.12307405349943641, -0.05294090787601936, 0.3339044532025015, -0.04329268374066806, -0.2577539712716765, 0.22959395962489115, -0.12339550652843598, -0.13782435151530648, 0.08942627165369786, 0.17111176076986187, 0.1767278987817563, -0.16691581943592468, 0.101717914306474, -0.03771212879665099, 0.11919805566574652, 0.04527642077149509, 0.05813067161490197, 0.05721291142527933, 0.10955600168362453, 0.18886376118480966, 0.19518613911766028, -0.0066881750607500215, -0.11780701865526763, -0.332631559486126, -0.12318716562873164, -0.12011290380017614, -0.018040675258675178, -0.09577219526195753, -0.17264472032812508, 0.41610416811104717, 0.18676886443871182, 0.181136246480338, 0.13229091404997684, 0.28244219299454193, 0.11226678451193593, 0.048280317384701274, 0.037951959817150195, 0.20639284071210143, 0.1499361976067983, 0.053656422297240464, -0.21721277112600865, 0.03321728674247377, 0.1129822277875206] |
1,802.00405 | HOL Light QE | We are interested in algorithms that manipulate mathematical expressions in
mathematically meaningful ways. Expressions are syntactic, but most logics do
not allow one to discuss syntax. ${\rm CTT}_{\rm qe}$ is a version of Church's
type theory that includes quotation and evaluation operators, akin to quote and
eval in the Lisp programming language. Since the HOL logic is also a version of
Church's type theory, we decided to add quotation and evaluation to HOL Light
to demonstrate the implementability of ${\rm CTT}_{\rm qe}$ and the benefits of
having quotation and evaluation in a proof assistant. The resulting system is
called HOL Light QE. Here we document the design of HOL Light QE and the
challenges that needed to be overcome. The resulting implementation is freely
available.
| cs.LO cs.MS | we are interested in algorithms that manipulate mathematical expressions in mathematically meaningful ways expressions are syntactic but most logics do not allow one to discuss syntax rm ctt_rm qe is a version of churchs type theory that includes quotation and evaluation operators akin to quote and eval in the lisp programming language since the hol logic is also a version of churchs type theory we decided to add quotation and evaluation to hol light to demonstrate the implementability of rm ctt_rm qe and the benefits of having quotation and evaluation in a proof assistant the resulting system is called hol light qe here we document the design of hol light qe and the challenges that needed to be overcome the resulting implementation is freely available | [['we', 'are', 'interested', 'in', 'algorithms', 'that', 'manipulate', 'mathematical', 'expressions', 'in', 'mathematically', 'meaningful', 'ways', 'expressions', 'are', 'syntactic', 'but', 'most', 'logics', 'do', 'not', 'allow', 'one', 'to', 'discuss', 'syntax', 'rm', 'ctt_rm', 'qe', 'is', 'a', 'version', 'of', 'churchs', 'type', 'theory', 'that', 'includes', 'quotation', 'and', 'evaluation', 'operators', 'akin', 'to', 'quote', 'and', 'eval', 'in', 'the', 'lisp', 'programming', 'language', 'since', 'the', 'hol', 'logic', 'is', 'also', 'a', 'version', 'of', 'churchs', 'type', 'theory', 'we', 'decided', 'to', 'add', 'quotation', 'and', 'evaluation', 'to', 'hol', 'light', 'to', 'demonstrate', 'the', 'implementability', 'of', 'rm', 'ctt_rm', 'qe', 'and', 'the', 'benefits', 'of', 'having', 'quotation', 'and', 'evaluation', 'in', 'a', 'proof', 'assistant', 'the', 'resulting', 'system', 'is', 'called', 'hol', 'light', 'qe', 'here', 'we', 'document', 'the', 'design', 'of', 'hol', 'light', 'qe', 'and', 'the', 'challenges', 'that', 'needed', 'to', 'be', 'overcome', 'the', 'resulting', 'implementation', 'is', 'freely', 'available']] | [-0.05515438121370971, 0.03927221943810582, -0.11692874046042562, 0.1467463053651154, -0.17521137610264123, -0.18342877988144754, 0.0818783192653209, 0.36884414311498404, -0.2753752846093848, -0.2747248282134533, 0.08125441370159388, -0.29664254759624603, -0.10701808765530586, 0.22393492430541664, -0.16423545293882488, 0.013506687548942863, 0.04935976452380419, 0.03648762552067637, -0.03345670139417052, -0.21584789733216167, 0.27465200682263824, -0.0253734948374331, 0.26863389496132734, 0.12014304596930742, 0.0785700300745666, 0.03434078883193433, -0.023024664995959027, -0.030308497495949268, -0.06869698391848943, 0.18664599688723682, 0.3232284961640835, 0.28319604495167733, 0.2678192485794425, -0.4041406578719616, -0.08616104597900995, 0.023771196015179158, 0.11540512203425168, 0.11626652847602964, -0.00041786933597177267, -0.2799719707816839, 0.10537298684194683, -0.20943140177428723, -0.08581465377658605, -0.10882904650270939, 0.03580968567728996, -0.00290066846460104, -0.1912150601958856, -0.06560113357217051, 0.13057723059505225, 0.09562867095321417, 0.004292860083281994, -0.10425738644134254, 0.020948913127183916, 0.07058250717073679, -0.010733110757544637, 0.015135668886825443, 0.11166390382498503, -0.08842051638662815, -0.1615456044971943, 0.40332544001936915, -0.06695693064294755, -0.20300356441934128, 0.152482446372509, -0.04589161793887615, -0.13106838686019182, 0.044899514997377994, 0.15098084869980813, 0.10737805619835854, -0.19495404634717853, 0.11914364668447525, -0.021235046602785586, 0.2536683811992407, 0.0988942029606551, 0.07355582729307934, 0.15106124290823936, 0.16728998260572553, -0.048755987532436845, 0.10342793404962868, 0.02788495872914791, -0.09133538792282343, -0.3448492008447647, -0.20093998335674404, -0.07633353529497981, -0.014378535093623213, -0.012085676738293841, -0.1862943309182301, 0.3579753691293299, 0.220480273488909, 0.07047942274063826, 0.13485347298532724, 0.30061979113519194, 0.11983677659928799, 0.11284687519446016, 0.06559343605395407, 0.16401271966286005, 0.09699107768759131, 0.1555793690532446, -0.16370785328000784, 0.06280956968292593, 0.09273427231796086] |
1,802.00406 | Precise half-life measurement of the superallowed emitter 30S | We have measured the half-life of 30S, the parent of a superallowed 0+-to-0+
beta transition, to high precision using very pure sources and a 4pi
proportional gas counter to detect the decay positrons. Our result for the
half-life is 1.17992(34) s. As a byproduct of this measurement, we determined
the half-life of its daughter, 30P, to be 2.501(2) min.
| nucl-ex | we have measured the halflife of 30s the parent of a superallowed 0to0 beta transition to high precision using very pure sources and a 4pi proportional gas counter to detect the decay positrons our result for the halflife is 11799234 s as a byproduct of this measurement we determined the halflife of its daughter 30p to be 25012 min | [['we', 'have', 'measured', 'the', 'halflife', 'of', '30s', 'the', 'parent', 'of', 'a', 'superallowed', '0to0', 'beta', 'transition', 'to', 'high', 'precision', 'using', 'very', 'pure', 'sources', 'and', 'a', '4pi', 'proportional', 'gas', 'counter', 'to', 'detect', 'the', 'decay', 'positrons', 'our', 'result', 'for', 'the', 'halflife', 'is', '11799234', 's', 'as', 'a', 'byproduct', 'of', 'this', 'measurement', 'we', 'determined', 'the', 'halflife', 'of', 'its', 'daughter', '30p', 'to', 'be', '25012', 'min']] | [-0.02879393150317156, 0.2317675278571091, -0.06959281692673501, 0.07359835015315759, 0.047796099405866446, -0.13209059177652785, 0.1208794552571418, 0.30216670261794015, -0.2291065833547659, -0.30439491583067074, 0.05514331225595813, -0.3503555931281625, 0.056160982518473214, 0.2037112405278573, 0.0029613608004231203, 0.05463389083314197, 0.03637305179839594, 0.08522452008011833, -0.09471358077012394, -0.18136664496309923, 0.176819275680668, 0.12278025118601427, 0.16787063861837642, 0.047436852931257406, 0.05850269605421968, -0.08850434138194511, 0.011544591011969666, -0.07394201437566887, -0.1738740487040527, 0.03671341458858367, 0.20802643154584394, 0.13778543676527447, 0.15038333934519374, -0.3365857075376992, -0.09169379434662692, 0.13537705368198977, 0.13416634101355285, 0.06382034187973068, -0.03468592298266135, -0.33093889211222793, 0.07529585349389858, -0.2323219268827846, -0.18028619215545946, -0.043280130889462795, 0.09740669108731181, 0.006483106649268353, -0.26267675950044866, 0.09400217636925447, -0.049593300052117886, 0.011193574185630209, -0.08765854254536527, -0.18076206375272913, 0.06240569521150176, 0.11537791753449199, 0.13488779685525387, 0.08180342866271212, 0.16762872915429047, -0.060319160515638556, -0.07444476176118642, 0.3488401838561945, -0.11103752095317632, -0.09180307374570698, 0.10065870549072299, -0.2423417099441091, -0.17539972642011809, 0.22629119625739885, 0.11416695103572126, 0.14697239842069776, -0.12723542270332314, 0.02895909158835645, -0.0052120682636373926, 0.2193673778848167, 0.09995206519797967, 0.0578529080376029, 0.1584566409389178, 0.2157683674503412, 0.009082219175373515, 0.08684203510474936, -0.1956779954530168, 0.01572183298208473, -0.3170881460894618, -0.19216275399779542, -0.13974746496808765, 0.1563017246100986, 0.010652748802768704, -0.14100377602204517, 0.35922055915324835, 0.03596216191848119, 0.18834456703380534, 0.03256780382454101, 0.23550476860091613, 0.1481721956413566, 0.08914435448803074, -0.04180404677039437, 0.3084472723043801, 0.18937635103142575, 0.04706352164870814, -0.28320563235728624, 0.09775159070104883, 0.016457733453104372] |
1,802.00407 | Two-color Fermi liquid theory for transport through a multilevel Kondo
impurity | We consider a quantum dot with ${\cal K}{\geq} 2$ orbital levels occupied by
two electrons connected to two electric terminals. The generic model is given
by a multi-level Anderson Hamiltonian. The weak-coupling theory at the
particle-hole symmetric point is governed by a two-channel $S{=}1$ Kondo model
characterized by intrinsic channels asymmetry. Based on a conformal field
theory approach we derived an effective Hamiltonian at a strong-coupling fixed
point. The Hamiltonian capturing the low-energy physics of a two-stage Kondo
screening represents the quantum impurity by a two-color local Fermi-liquid.
Using non-equilibrium (Keldysh) perturbation theory around the strong-coupling
fixed point we analyze the transport properties of the model at finite
temperature, Zeeman magnetic field and source-drain voltage applied across the
quantum dot. We compute the Fermi-liquid transport constants and discuss
different universality classes associated with emergent symmetries.
| cond-mat.mes-hall cond-mat.str-el | we consider a quantum dot with cal kgeq 2 orbital levels occupied by two electrons connected to two electric terminals the generic model is given by a multilevel anderson hamiltonian the weakcoupling theory at the particlehole symmetric point is governed by a twochannel s1 kondo model characterized by intrinsic channels asymmetry based on a conformal field theory approach we derived an effective hamiltonian at a strongcoupling fixed point the hamiltonian capturing the lowenergy physics of a twostage kondo screening represents the quantum impurity by a twocolor local fermiliquid using nonequilibrium keldysh perturbation theory around the strongcoupling fixed point we analyze the transport properties of the model at finite temperature zeeman magnetic field and sourcedrain voltage applied across the quantum dot we compute the fermiliquid transport constants and discuss different universality classes associated with emergent symmetries | [['we', 'consider', 'a', 'quantum', 'dot', 'with', 'cal', 'kgeq', '2', 'orbital', 'levels', 'occupied', 'by', 'two', 'electrons', 'connected', 'to', 'two', 'electric', 'terminals', 'the', 'generic', 'model', 'is', 'given', 'by', 'a', 'multilevel', 'anderson', 'hamiltonian', 'the', 'weakcoupling', 'theory', 'at', 'the', 'particlehole', 'symmetric', 'point', 'is', 'governed', 'by', 'a', 'twochannel', 's1', 'kondo', 'model', 'characterized', 'by', 'intrinsic', 'channels', 'asymmetry', 'based', 'on', 'a', 'conformal', 'field', 'theory', 'approach', 'we', 'derived', 'an', 'effective', 'hamiltonian', 'at', 'a', 'strongcoupling', 'fixed', 'point', 'the', 'hamiltonian', 'capturing', 'the', 'lowenergy', 'physics', 'of', 'a', 'twostage', 'kondo', 'screening', 'represents', 'the', 'quantum', 'impurity', 'by', 'a', 'twocolor', 'local', 'fermiliquid', 'using', 'nonequilibrium', 'keldysh', 'perturbation', 'theory', 'around', 'the', 'strongcoupling', 'fixed', 'point', 'we', 'analyze', 'the', 'transport', 'properties', 'of', 'the', 'model', 'at', 'finite', 'temperature', 'zeeman', 'magnetic', 'field', 'and', 'sourcedrain', 'voltage', 'applied', 'across', 'the', 'quantum', 'dot', 'we', 'compute', 'the', 'fermiliquid', 'transport', 'constants', 'and', 'discuss', 'different', 'universality', 'classes', 'associated', 'with', 'emergent', 'symmetries']] | [-0.19171433218030465, 0.2146568773082604, -0.0640612231541632, 0.0787504563987669, 0.020325872236517845, -0.2465681583551621, 0.07795393046905735, 0.3241012287326157, -0.2652672102398895, -0.2350999279430619, -0.04557227150847514, -0.2980020451428438, -0.11424719485350782, 0.11089633517829632, 0.040206373332896166, 0.015242045698687434, -0.0570634461266713, 0.006123958797090583, -0.1110737282782793, -0.1706061762119471, 0.3279991760332551, -0.024552289159382106, 0.28979636102362916, 0.09111660661831222, 0.0862369995702196, 0.06612520360698303, 0.09744635961811851, 0.048170572867686, -0.14994380721753395, 0.039837113529857665, 0.26258778373227903, -0.09048055528352658, 0.22600886197415768, -0.42523076407335425, -0.21092806048691273, -0.00046651094668993245, 0.11186715749575309, 0.17374300283069413, -0.033908964863426434, -0.3272338164194177, 0.02329233911888743, -0.1811418126164763, -0.16486784487583295, -0.07114598514615661, -0.04045885801142841, -0.05098443071668347, -0.2712776461823119, 0.0865233031125239, 0.019735077465022052, 0.10825068970659264, -0.037249063203732176, -0.07703506607838251, -0.02107102388378095, 0.0618280495139684, -0.00829691918808277, 0.049111319048744106, 0.18970670053838856, -0.1395314895271979, -0.13851653894892446, 0.3577174668476261, -0.08378636323958981, -0.12799535736062184, 0.13941465822841834, -0.15165539420106344, -0.07893084469078868, 0.12425502217374743, 0.0854137291683367, 0.10143010891560052, -0.18123202002434818, 0.20847704479798537, -0.0283989445289114, 0.10999817502646086, -0.0017333728088824837, 0.03430407992736609, 0.27515018264314645, 0.14689761897962955, 0.05482266948868831, 0.13203648409840685, -0.10807302068548139, -0.1720834081561339, -0.31989638087926087, -0.06083312786218745, -0.2460021224114354, 0.1277595893531624, -0.11355014896619617, -0.16530766909666084, 0.4596404614133967, 0.1652222684251481, 0.1600996779094742, -0.02422149433706956, 0.23937592873548122, 0.23040961187884765, 0.017908355452258277, 0.08384167443684958, 0.1635151739542683, 0.1937269877418186, 0.04568157955676455, -0.3590948893861086, -0.055286966598834156, 0.14549910239530384] |
1,802.00408 | Quasar Viscosity Crisis | Recent observations of extreme variability in Active Galactic Nuclei have
pushed standard viscous accretion disc models over an edge. "Extreme
reprocessing" where an erratically variable central quasi-point source is
entirely responsible for heating an otherwise cold and passive low-viscosity
disc, may be the best route forward.
| astro-ph.HE | recent observations of extreme variability in active galactic nuclei have pushed standard viscous accretion disc models over an edge extreme reprocessing where an erratically variable central quasipoint source is entirely responsible for heating an otherwise cold and passive lowviscosity disc may be the best route forward | [['recent', 'observations', 'of', 'extreme', 'variability', 'in', 'active', 'galactic', 'nuclei', 'have', 'pushed', 'standard', 'viscous', 'accretion', 'disc', 'models', 'over', 'an', 'edge', 'extreme', 'reprocessing', 'where', 'an', 'erratically', 'variable', 'central', 'quasipoint', 'source', 'is', 'entirely', 'responsible', 'for', 'heating', 'an', 'otherwise', 'cold', 'and', 'passive', 'lowviscosity', 'disc', 'may', 'be', 'the', 'best', 'route', 'forward']] | [-0.07135344720962974, 0.191424298967791, -0.0787429723681675, 0.06876780570019037, -0.09911835371878826, -0.13586116939679616, 0.01662460362745656, 0.4112102540830771, -0.26727047405309146, -0.29320564770864116, 0.10620018021048357, -0.2690727731419934, 0.024272069045239025, 0.22345301508903503, -0.09643013666176961, 0.005565349054005411, -0.02933759339567688, -0.13361792413310872, 0.08778204922046927, -0.19632697718011008, 0.2576064130808744, 0.1623272191733122, 0.12106558225221103, -0.06557482113647792, 0.027936852630227806, -0.08238541143428948, -0.04888713227377998, -0.04801408632968863, -0.09452961484591166, -0.00016463442395130793, 0.268535968931408, 0.05006125105751885, 0.259466851544049, -0.4950194518857946, -0.3276126555063658, 0.09283046401623223, 0.2433708197540707, 0.021632606184317005, -0.11727291844371292, -0.16957698240876198, -0.02741304048233562, -0.23546191735400093, -0.16661335035330718, 0.06529574174847867, 0.10323144771779577, -0.039204712181041636, -0.2650992843167235, 0.08904426813953453, 0.12184039022152622, 0.05204420542965333, -0.16330042666652136, -0.03731581388662259, -0.03740924307041698, 0.05529811297439867, 0.07909718243301743, 0.12168642186249296, 0.282059383759689, -0.18948235453830825, -0.0814458585344255, 0.3556018363063534, -0.05463067493918869, -0.04498037115877701, 0.27523273857724334, -0.17572075478318666, -0.10156453417407142, 0.2208601813349459, 0.1944470387366083, 0.1264496508985758, -0.14292426504608657, -0.008379315772456014, -0.09258362848518623, 0.19000029298994275, 0.026618232474558884, 0.0133249390249451, 0.4207294693423642, 0.158105219507383, 0.043177384391634, 0.09410568691997065, -0.18774347940699146, -0.09782232134085563, -0.24497460655661094, -0.05375340715464619, -0.09822075102064344, 0.07374271963619523, -0.18222203304337906, -0.12426078879377908, 0.26077765608206394, 0.07366969814368834, 0.24379300081895458, -0.07369882235200041, 0.33406562780340515, 0.11853387637270821, 0.054958930901355216, 0.22001789838282598, 0.37250918023702173, 0.09073306304118078, 0.06706124419708633, -0.2042567965057161, 0.13920166309560753, -0.013185702533357673] |
1,802.00409 | Discovery of New Dipper Stars with K2: A Window into the Inner Disk
Region of T Tauri Stars | In recent years a new class of Young Stellar Object has been defined,
referred to as dippers, where large transient drops in flux are observed. These
dips are too large to be attributed to stellar variability, last from hours to
days and can reduce the flux of a star by 10-50\%. This variability has been
attributed to occultations by warps or accretion columns near the inner edge of
circumstellar disks. Here we present 95 dippers in the Upper Scorpius
association and $\rho$ Ophiuchus cloud complex found in K2 Campaign 2 data
using supervised machine learning with a Random Forest classifier. We also
present 30 YSOs that exhibit brightening events on the order of days, known as
bursters. Not all dippers and bursters are known members, but all exhibit
infrared excesses and are consistent with belonging to either of the two young
star forming regions. We find 21.0 $\pm$ 5.5\% of stars with disks are dippers
for both regions combined. Our entire dipper sample consists only of late-type
(KM) stars, but we show that biases limit dipper discovery for earlier spectral
types. Using the dipper properties as a proxy, we find that the temperature at
the inner disk edge is consistent with interferometric results for similar and
earlier type stars.
| astro-ph.SR | in recent years a new class of young stellar object has been defined referred to as dippers where large transient drops in flux are observed these dips are too large to be attributed to stellar variability last from hours to days and can reduce the flux of a star by 1050 this variability has been attributed to occultations by warps or accretion columns near the inner edge of circumstellar disks here we present 95 dippers in the upper scorpius association and rho ophiuchus cloud complex found in k2 campaign 2 data using supervised machine learning with a random forest classifier we also present 30 ysos that exhibit brightening events on the order of days known as bursters not all dippers and bursters are known members but all exhibit infrared excesses and are consistent with belonging to either of the two young star forming regions we find 210 pm 55 of stars with disks are dippers for both regions combined our entire dipper sample consists only of latetype km stars but we show that biases limit dipper discovery for earlier spectral types using the dipper properties as a proxy we find that the temperature at the inner disk edge is consistent with interferometric results for similar and earlier type stars | [['in', 'recent', 'years', 'a', 'new', 'class', 'of', 'young', 'stellar', 'object', 'has', 'been', 'defined', 'referred', 'to', 'as', 'dippers', 'where', 'large', 'transient', 'drops', 'in', 'flux', 'are', 'observed', 'these', 'dips', 'are', 'too', 'large', 'to', 'be', 'attributed', 'to', 'stellar', 'variability', 'last', 'from', 'hours', 'to', 'days', 'and', 'can', 'reduce', 'the', 'flux', 'of', 'a', 'star', 'by', '1050', 'this', 'variability', 'has', 'been', 'attributed', 'to', 'occultations', 'by', 'warps', 'or', 'accretion', 'columns', 'near', 'the', 'inner', 'edge', 'of', 'circumstellar', 'disks', 'here', 'we', 'present', '95', 'dippers', 'in', 'the', 'upper', 'scorpius', 'association', 'and', 'rho', 'ophiuchus', 'cloud', 'complex', 'found', 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1,802.0041 | Quantum-Enhanced Plasmonic Sensing | Quantum resources can enhance the sensitivity of a device beyond the
classical shot noise limit and, as a result, revolutionize the field of
metrology through the development of quantum-enhanced sensors. In particular,
plasmonic sensors, which are widely used in biological and chemical sensing
applications, offer a unique opportunity to bring such an enhancement to
real-life devices. Here, we use bright entangled twin beams to enhance the
sensitivity of a plasmonic sensor used to measure local changes in refractive
index. We demonstrate a 56% quantum enhancement in the sensitivity of
state-of-the-art plasmonic sensor with measured sensitivities on the order of
$10^{-10}$RIU$/\sqrt{\textrm{Hz}}$, nearly 5 orders of magnitude better than
previous proof-of-principle implementations of quantum-enhanced plasmonic
sensors. These results promise significant enhancements in ultratrace label
free plasmonic sensing and will find their way into areas ranging from
biomedical applications to chemical detection.
| quant-ph physics.optics | quantum resources can enhance the sensitivity of a device beyond the classical shot noise limit and as a result revolutionize the field of metrology through the development of quantumenhanced sensors in particular plasmonic sensors which are widely used in biological and chemical sensing applications offer a unique opportunity to bring such an enhancement to reallife devices here we use bright entangled twin beams to enhance the sensitivity of a plasmonic sensor used to measure local changes in refractive index we demonstrate a 56 quantum enhancement in the sensitivity of stateoftheart plasmonic sensor with measured sensitivities on the order of 1010riusqrttextrmhz nearly 5 orders of magnitude better than previous proofofprinciple implementations of quantumenhanced plasmonic sensors these results promise significant enhancements in ultratrace label free plasmonic sensing and will find their way into areas ranging from biomedical applications to chemical detection | [['quantum', 'resources', 'can', 'enhance', 'the', 'sensitivity', 'of', 'a', 'device', 'beyond', 'the', 'classical', 'shot', 'noise', 'limit', 'and', 'as', 'a', 'result', 'revolutionize', 'the', 'field', 'of', 'metrology', 'through', 'the', 'development', 'of', 'quantumenhanced', 'sensors', 'in', 'particular', 'plasmonic', 'sensors', 'which', 'are', 'widely', 'used', 'in', 'biological', 'and', 'chemical', 'sensing', 'applications', 'offer', 'a', 'unique', 'opportunity', 'to', 'bring', 'such', 'an', 'enhancement', 'to', 'reallife', 'devices', 'here', 'we', 'use', 'bright', 'entangled', 'twin', 'beams', 'to', 'enhance', 'the', 'sensitivity', 'of', 'a', 'plasmonic', 'sensor', 'used', 'to', 'measure', 'local', 'changes', 'in', 'refractive', 'index', 'we', 'demonstrate', 'a', '56', 'quantum', 'enhancement', 'in', 'the', 'sensitivity', 'of', 'stateoftheart', 'plasmonic', 'sensor', 'with', 'measured', 'sensitivities', 'on', 'the', 'order', 'of', '1010riusqrttextrmhz', 'nearly', '5', 'orders', 'of', 'magnitude', 'better', 'than', 'previous', 'proofofprinciple', 'implementations', 'of', 'quantumenhanced', 'plasmonic', 'sensors', 'these', 'results', 'promise', 'significant', 'enhancements', 'in', 'ultratrace', 'label', 'free', 'plasmonic', 'sensing', 'and', 'will', 'find', 'their', 'way', 'into', 'areas', 'ranging', 'from', 'biomedical', 'applications', 'to', 'chemical', 'detection']] | [-0.0711799851362256, 0.11386720630421684, -0.03479650917975907, -0.024807678913508636, -0.03870635963908896, -0.1284792415521013, 0.03534659048022729, 0.4235844212091541, -0.25745049351488875, -0.37942004089068243, 0.03721743668522348, -0.30432910927017964, -0.1737329120767991, 0.28034674961362843, -0.10332673870404993, 0.11472890352276896, 0.03547158877135835, 0.005486749814472337, -0.033915247469533075, -0.2006669564685528, 0.17992523265833818, 0.06250536649832097, 0.34618578910274245, 0.07703901020863997, 0.06646389207984928, -0.020643975656560582, 0.0028275686646879153, -0.013701457376726836, -0.09902541558899364, 0.17018215294445035, 0.32914025136235886, 0.06944555060708545, 0.2786864090467925, -0.45951210929458775, -0.2502192093592569, 0.10752912616426592, 0.16380583953476793, 0.11479917691895684, -0.1150863628853045, -0.307474754858708, 0.07493694335984849, -0.16100928647295182, -0.1384262167459541, -0.09402172124364237, -0.01816548956338775, 0.026388400081592357, -0.25502760289236903, 0.00012732520901962468, -0.0035352448559960053, 0.06577537317956002, -0.017078902568702713, -0.09903834909673079, 0.07490632015928302, 0.14532110029899015, -0.06594879185296662, -0.016060434784605237, 0.25131730451518536, -0.1847629411554342, -0.19496554019523488, 0.3927249301737849, -0.0807202623376382, -0.12144598653168837, 0.2233766136282677, -0.14399135925982526, -0.06940063772102197, 0.1195708919937412, 0.2224493766358743, 0.08392073544741109, -0.1218029895723136, 0.01911712827817267, 0.08294644312717128, 0.2055403827773947, 0.10228210695567068, 0.20370850171488913, 0.21790224211408582, 0.21105194855498258, 0.13025888278270545, 0.11486609780948366, -0.14629980370206624, -0.022233038320732507, -0.21891829371114896, -0.1841554802680469, -0.17662320195602765, 0.07958244942415478, -0.10818359921519742, -0.12749292201993556, 0.3877462207177735, 0.25347510762841685, 0.11663178412709385, -0.0636000073611048, 0.35495537447918585, 0.05195815921204327, 0.12501159742511675, -0.04765660233417715, 0.3048414749876205, 0.14999437776893593, 0.1350179988641184, -0.18702212755106037, -0.003623591972164054, -0.08233893346682569] |
1,802.00411 | Dense 3D Object Reconstruction from a Single Depth View | In this paper, we propose a novel approach, 3D-RecGAN++, which reconstructs
the complete 3D structure of a given object from a single arbitrary depth view
using generative adversarial networks. Unlike existing work which typically
requires multiple views of the same object or class labels to recover the full
3D geometry, the proposed 3D-RecGAN++ only takes the voxel grid representation
of a depth view of the object as input, and is able to generate the complete 3D
occupancy grid with a high resolution of 256^3 by recovering the
occluded/missing regions. The key idea is to combine the generative
capabilities of autoencoders and the conditional Generative Adversarial
Networks (GAN) framework, to infer accurate and fine-grained 3D structures of
objects in high-dimensional voxel space. Extensive experiments on large
synthetic datasets and real-world Kinect datasets show that the proposed
3D-RecGAN++ significantly outperforms the state of the art in single view 3D
object reconstruction, and is able to reconstruct unseen types of objects.
| cs.CV cs.AI cs.LG cs.RO | in this paper we propose a novel approach 3drecgan which reconstructs the complete 3d structure of a given object from a single arbitrary depth view using generative adversarial networks unlike existing work which typically requires multiple views of the same object or class labels to recover the full 3d geometry the proposed 3drecgan only takes the voxel grid representation of a depth view of the object as input and is able to generate the complete 3d occupancy grid with a high resolution of 2563 by recovering the occludedmissing regions the key idea is to combine the generative capabilities of autoencoders and the conditional generative adversarial networks gan framework to infer accurate and finegrained 3d structures of objects in highdimensional voxel space extensive experiments on large synthetic datasets and realworld kinect datasets show that the proposed 3drecgan significantly outperforms the state of the art in single view 3d object reconstruction and is able to reconstruct unseen types of objects | [['in', 'this', 'paper', 'we', 'propose', 'a', 'novel', 'approach', '3drecgan', 'which', 'reconstructs', 'the', 'complete', '3d', 'structure', 'of', 'a', 'given', 'object', 'from', 'a', 'single', 'arbitrary', 'depth', 'view', 'using', 'generative', 'adversarial', 'networks', 'unlike', 'existing', 'work', 'which', 'typically', 'requires', 'multiple', 'views', 'of', 'the', 'same', 'object', 'or', 'class', 'labels', 'to', 'recover', 'the', 'full', '3d', 'geometry', 'the', 'proposed', '3drecgan', 'only', 'takes', 'the', 'voxel', 'grid', 'representation', 'of', 'a', 'depth', 'view', 'of', 'the', 'object', 'as', 'input', 'and', 'is', 'able', 'to', 'generate', 'the', 'complete', '3d', 'occupancy', 'grid', 'with', 'a', 'high', 'resolution', 'of', '2563', 'by', 'recovering', 'the', 'occludedmissing', 'regions', 'the', 'key', 'idea', 'is', 'to', 'combine', 'the', 'generative', 'capabilities', 'of', 'autoencoders', 'and', 'the', 'conditional', 'generative', 'adversarial', 'networks', 'gan', 'framework', 'to', 'infer', 'accurate', 'and', 'finegrained', '3d', 'structures', 'of', 'objects', 'in', 'highdimensional', 'voxel', 'space', 'extensive', 'experiments', 'on', 'large', 'synthetic', 'datasets', 'and', 'realworld', 'kinect', 'datasets', 'show', 'that', 'the', 'proposed', '3drecgan', 'significantly', 'outperforms', 'the', 'state', 'of', 'the', 'art', 'in', 'single', 'view', '3d', 'object', 'reconstruction', 'and', 'is', 'able', 'to', 'reconstruct', 'unseen', 'types', 'of', 'objects']] | [-0.0013257809173149668, -0.028879831915804344, -0.042261597267381705, 0.042763928338517526, -0.09362893584955508, -0.14299874535352466, -0.005608419359032848, 0.4160915218341123, -0.2551701843803808, -0.38632185522549944, 0.032814973086611056, -0.24957135047727994, -0.18213817693150727, 0.14402411690435615, -0.16627218550557543, 0.09267626838034886, 0.1520734010041828, 0.03280942620498953, -0.08445806162592, -0.2344685469792598, 0.3344976336481702, 0.03733951019443524, 0.3535299553672314, -0.05357169409454533, 0.20606357218389204, -0.0018951909299228032, -0.03694082628624146, 0.03779532268897713, -0.048929362010833984, 0.2172858626255469, 0.25736519854343765, 0.20003023676004758, 0.23802379026243783, -0.44296987718979647, -0.28653370766384395, 0.06268617144643454, 0.12479416046078039, 0.13818203322133377, -0.023369974976518208, -0.3716132350526987, 0.11781931111506026, -0.13561664571522908, -0.009029799399031386, -0.12028067766623513, -0.03668525958564251, -0.03127889416164238, -0.31925184697181186, 0.014966454170051085, 0.06986200532936758, 0.03750035075091158, -0.08023845468600323, -0.06892075584192944, -0.03138051494054354, 0.1982898660119813, -0.05212375341920526, 0.07210272869427398, 0.12000764223337648, -0.21352717613432093, -0.1323813977013609, 0.37218822568512644, -0.018530659419098858, -0.2106753233936986, 0.21261943930131236, -0.10301019586059176, -0.11994416070627464, 0.15922961092648943, 0.2232569190095161, 0.1854366347086942, -0.10399832853277742, 0.04446986823151434, -0.0919048941729792, 0.18271038877024393, 0.005129505593958459, -0.014916897267192175, 0.1899397751423204, 0.24309819031233906, 0.029469866095004, 0.1625407905322292, -0.2448340409218814, -0.06553578300692237, -0.2166743103661693, -0.10258343673204028, -0.23694780100564097, -0.01563367216735129, -0.11481150605070337, -0.1853646295750217, 0.42759737346297616, 0.24615735954243192, 0.26262837522633514, 0.09539621884068533, 0.39011301821584154, -0.01607202222514423, 0.09111430994153415, 0.05618224749756846, 0.13374741474807167, 0.02792298539458614, 0.11851117495784037, -0.13003385882931434, 0.06649017181977107, 0.07238497652182398] |
1,802.00412 | Summary and Conclusions of the First DESY Test Beam User Workshop | On October 5/6, 2017, DESY hosted the first DESY Test Beam User Workshop [1]
which took place in Hamburg. Fifty participants from different user
communities, ranging from LHC (ALICE, ATLAS, CMS, LHCb) to FAIR (CBM, PANDA),
DUNE, Belle-II, future linear colliders (ILC, CLIC) and generic detector R&D
presented their experiences with the DESY II Test Beam Facility, their concrete
plans for the upcoming years and a first estimate of their needs for beam time
in the long-term future beyond 2025. A special focus was also on additional
improvements to the facility beyond its current capabilities.
| physics.ins-det hep-ex | on october 56 2017 desy hosted the first desy test beam user workshop 1 which took place in hamburg fifty participants from different user communities ranging from lhc alice atlas cms lhcb to fair cbm panda dune belleii future linear colliders ilc clic and generic detector rd presented their experiences with the desy ii test beam facility their concrete plans for the upcoming years and a first estimate of their needs for beam time in the longterm future beyond 2025 a special focus was also on additional improvements to the facility beyond its current capabilities | [['on', 'october', '56', '2017', 'desy', 'hosted', 'the', 'first', 'desy', 'test', 'beam', 'user', 'workshop', '1', 'which', 'took', 'place', 'in', 'hamburg', 'fifty', 'participants', 'from', 'different', 'user', 'communities', 'ranging', 'from', 'lhc', 'alice', 'atlas', 'cms', 'lhcb', 'to', 'fair', 'cbm', 'panda', 'dune', 'belleii', 'future', 'linear', 'colliders', 'ilc', 'clic', 'and', 'generic', 'detector', 'rd', 'presented', 'their', 'experiences', 'with', 'the', 'desy', 'ii', 'test', 'beam', 'facility', 'their', 'concrete', 'plans', 'for', 'the', 'upcoming', 'years', 'and', 'a', 'first', 'estimate', 'of', 'their', 'needs', 'for', 'beam', 'time', 'in', 'the', 'longterm', 'future', 'beyond', '2025', 'a', 'special', 'focus', 'was', 'also', 'on', 'additional', 'improvements', 'to', 'the', 'facility', 'beyond', 'its', 'current', 'capabilities']] | [-0.03486195389965647, 0.14297674553174722, -0.08676188604317997, 0.08026612876840916, -0.11457360181957484, -0.21526061561813356, 0.0107679427699431, 0.3632735966606752, -0.16346716876876982, -0.3398952380018799, 0.09309035272729632, -0.3743946152812752, 0.07535954256186654, 0.2352584284901815, 0.0018622798207951219, 0.16509590145433323, 0.1655132919598959, -0.03886019223320641, -0.0381775370749988, -0.35551482337085827, 0.17462994024941797, 0.28932728161055005, 0.27245473080608795, 0.10695961421159537, 0.07861117085343913, 0.03363269535751131, -0.06440229011993659, -0.09422843430534397, -0.09542217092821374, 0.04596963436587861, 0.37217432454620536, 0.22516958404234366, 0.2613251189260106, -0.46447142290049476, -0.02742796146163815, 0.07036688951530347, 0.021262274564881074, -0.00011729666301490445, -0.1025249556417724, -0.37219409575244705, 0.06573256864825165, -0.2943641878272358, -0.1263455447446751, 0.08912733879896174, -0.01017020506490218, 0.021527035887304105, -0.24560362786838882, -0.08737019332842656, -0.07304197048866436, 0.12734692295443414, -0.012186361051556703, -0.22789664902773343, 0.030623473582397167, 0.07419273340534634, -0.0026758787283477814, 0.08532247366383672, 0.1788449542229309, -0.12918588862123312, -0.2136510539309759, 0.35696280694713717, 0.02703419957236436, -0.003639529042534138, 0.20345005151864728, -0.2998489391328277, -0.12569836888119187, 0.04561685161530285, 0.363513755033675, 0.03294934974952699, -0.1910540739858621, 0.10236687638037102, 0.0013534374240981905, 0.16221041741143716, 0.13580004576789706, -0.014791062508562677, 0.23021159524122548, 0.3012554177426194, 0.07867303067499673, 0.029272928069296635, -0.1330156922634495, -0.012563159397656195, -0.45780301995967565, -0.08760885557061747, -0.06392938444684995, -0.05683960696241181, 0.06115877294061264, 0.05349293116872248, 0.4022752453609811, 0.13223965299364768, 0.16412751830035918, -0.02938828066260995, 0.29255226322106626, -0.0268500710286102, 0.05512217755588752, 0.02377221410064713, 0.3168700433483249, -0.008203906820792901, 0.30498968876506155, -0.18865547062044866, 0.009739255704181759, 0.004828901677147338] |
1,802.00413 | Distributed Computing with Heterogeneous Communication Constraints: The
Worst-Case Computation Load and Proof by Contradiction | We consider a distributed computing framework where the distributed nodes
have different communication capabilities, motivated by the heterogeneous
networks in data centers and mobile edge computing systems. Following the
structure of MapReduce, this framework consists of Map computation phase,
Shuffle phase, and Reduce computation phase. The Shuffle phase allows
distributed nodes to exchange intermediate values, in the presence of
heterogeneous communication bottlenecks for different nodes (heterogeneous
communication load constraints). For this setting, we characterize the minimum
total computation load and the minimum worst-case computation load in some
cases, under the heterogeneous communication load constraints. While the total
computation load depends on the sum of the computation loads of all the nodes,
the worst-case computation load depends on the computation load of a node with
the heaviest job. We show an interesting insight that, for some cases, there is
a tradeoff between the minimum total computation load and the minimum
worst-case computation load, in the sense that both cannot be achieved at the
same time. The achievability schemes are proposed with careful design on the
file assignment and the data shuffling. Beyond the cut-set bound, a novel
converse is proposed using the proof by contradiction. For the general case, we
identify two extreme regimes in which both the scheme with coding and the
scheme without coding are optimal, respectively.
| cs.IT math.IT | we consider a distributed computing framework where the distributed nodes have different communication capabilities motivated by the heterogeneous networks in data centers and mobile edge computing systems following the structure of mapreduce this framework consists of map computation phase shuffle phase and reduce computation phase the shuffle phase allows distributed nodes to exchange intermediate values in the presence of heterogeneous communication bottlenecks for different nodes heterogeneous communication load constraints for this setting we characterize the minimum total computation load and the minimum worstcase computation load in some cases under the heterogeneous communication load constraints while the total computation load depends on the sum of the computation loads of all the nodes the worstcase computation load depends on the computation load of a node with the heaviest job we show an interesting insight that for some cases there is a tradeoff between the minimum total computation load and the minimum worstcase computation load in the sense that both cannot be achieved at the same time the achievability schemes are proposed with careful design on the file assignment and the data shuffling beyond the cutset bound a novel converse is proposed using the proof by contradiction for the general case we identify two extreme regimes in which both the scheme with coding and the scheme without coding are optimal respectively | [['we', 'consider', 'a', 'distributed', 'computing', 'framework', 'where', 'the', 'distributed', 'nodes', 'have', 'different', 'communication', 'capabilities', 'motivated', 'by', 'the', 'heterogeneous', 'networks', 'in', 'data', 'centers', 'and', 'mobile', 'edge', 'computing', 'systems', 'following', 'the', 'structure', 'of', 'mapreduce', 'this', 'framework', 'consists', 'of', 'map', 'computation', 'phase', 'shuffle', 'phase', 'and', 'reduce', 'computation', 'phase', 'the', 'shuffle', 'phase', 'allows', 'distributed', 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1,802.00414 | Anisotropic flow: A case for Bottomonia | Studies of $J/$$\psi$ $v_2$ at RHIC and LHC energies have provided important
elements towards the understanding on the production mechanisms and on the
thermalization of charm quarks. Bottomonia has an advantage since it is a
cleaner probe. A brief discussion has been provided for $\Upsilon(1S)$ $v_2$,
which can become the new probe for QGP, including the necessity of studies for
small systems.
| nucl-ex hep-ex hep-ph nucl-th | studies of jpsi v_2 at rhic and lhc energies have provided important elements towards the understanding on the production mechanisms and on the thermalization of charm quarks bottomonia has an advantage since it is a cleaner probe a brief discussion has been provided for upsilon1s v_2 which can become the new probe for qgp including the necessity of studies for small systems | [['studies', 'of', 'jpsi', 'v_2', 'at', 'rhic', 'and', 'lhc', 'energies', 'have', 'provided', 'important', 'elements', 'towards', 'the', 'understanding', 'on', 'the', 'production', 'mechanisms', 'and', 'on', 'the', 'thermalization', 'of', 'charm', 'quarks', 'bottomonia', 'has', 'an', 'advantage', 'since', 'it', 'is', 'a', 'cleaner', 'probe', 'a', 'brief', 'discussion', 'has', 'been', 'provided', 'for', 'upsilon1s', 'v_2', 'which', 'can', 'become', 'the', 'new', 'probe', 'for', 'qgp', 'including', 'the', 'necessity', 'of', 'studies', 'for', 'small', 'systems']] | [-0.031849184520392405, 0.22563672578924585, -0.2027303957034864, 0.11593914477552678, -0.04038545187382448, -0.11209177165742844, -0.056340907797998475, 0.3372789283072756, -0.1512422063463037, -0.2061938506911599, 0.008300290292789858, -0.3683833369549604, 0.07137372099884576, 0.23666817334390455, 0.07329691918068655, 0.11228749651702181, 0.15544973980755575, 0.00887138147898499, 0.007333468765981736, -0.2327240725337047, 0.2866110206138523, 0.07565244485534006, 0.23096960521633586, 0.272088467436392, 0.06028168339041933, 0.025686077187739072, -0.044983564991496444, -0.008115959864470267, -0.1519035743549466, 0.04539704570666917, 0.23962384055278474, 0.09612640190959698, 0.2495154691559653, -0.36061530199743086, -0.1850457813500637, 0.11361982028991464, 0.17475778456672184, 0.14745564138959913, -0.13163596724024823, -0.2772378433615931, 0.13346395189423235, -0.19345967473101713, -0.10604673053228086, -0.14489499061939218, 0.06185804148234667, -0.06447192278480338, -0.29125813544998247, 0.02604054796299146, -0.012266932874016704, 0.0860543616093515, 0.0075712021545416884, -0.22676636651158333, -0.04417970345445698, 0.060502242169252804, 0.1163051113779206, 0.10095893573241248, 0.1406095604517407, -0.1831361417838883, -0.17588274869617196, 0.4403068733311469, 0.03560272744676519, -0.09633337823493827, 0.22872077243500238, -0.17363935704493233, -0.17324298151558445, 0.12523975445618551, 0.26347176331065353, 0.06034605366538369, -0.19224343746299705, 0.054858145647637184, -0.03221734844508671, 0.15635103365451458, 0.05496154725551605, 0.1458680234669197, 0.23764816416247236, 0.2915380217375294, 0.019920985698850164, 0.0617016339674592, -0.013976736910521023, -0.06300410613297455, -0.34610509077808066, -0.148950143927528, -0.10117498666588817, 0.07513958151121775, -0.04589599458784271, -0.04788400358971088, 0.40914128044800413, 0.08013374845857822, 0.2549726677187268, -0.08344056619699264, 0.341650994794984, 0.0870040969307264, 0.06084860425682798, 0.07089494774869133, 0.3216303177177906, 0.1676541506463001, 0.22002357855859783, -0.2518139873375936, 0.1109828353303695, 0.072597716461807] |
1,802.00415 | The Logos Categorical Approach to QM: II. Quantum Superpositions | In this paper we attempt to consider quantum superpositions from the
perspective of the logos categorical approach presented in [26]. We will argue
that our approach allows us not only to better visualize the structural
features of quantum superpositions providing an anschaulich content to all
terms, but also to restore --through the intensive valuation of graphs and the
notion of immanent power-- an objective representation of what QM is really
talking about. In particular, we will discuss how superpositions relate to some
of the main features of the theory of quanta, namely, contextuality,
paraconsistency, probability and measurement.
| quant-ph math-ph math.MP physics.hist-ph | in this paper we attempt to consider quantum superpositions from the perspective of the logos categorical approach presented in 26 we will argue that our approach allows us not only to better visualize the structural features of quantum superpositions providing an anschaulich content to all terms but also to restore through the intensive valuation of graphs and the notion of immanent power an objective representation of what qm is really talking about in particular we will discuss how superpositions relate to some of the main features of the theory of quanta namely contextuality paraconsistency probability and measurement | [['in', 'this', 'paper', 'we', 'attempt', 'to', 'consider', 'quantum', 'superpositions', 'from', 'the', 'perspective', 'of', 'the', 'logos', 'categorical', 'approach', 'presented', 'in', '26', 'we', 'will', 'argue', 'that', 'our', 'approach', 'allows', 'us', 'not', 'only', 'to', 'better', 'visualize', 'the', 'structural', 'features', 'of', 'quantum', 'superpositions', 'providing', 'an', 'anschaulich', 'content', 'to', 'all', 'terms', 'but', 'also', 'to', 'restore', 'through', 'the', 'intensive', 'valuation', 'of', 'graphs', 'and', 'the', 'notion', 'of', 'immanent', 'power', 'an', 'objective', 'representation', 'of', 'what', 'qm', 'is', 'really', 'talking', 'about', 'in', 'particular', 'we', 'will', 'discuss', 'how', 'superpositions', 'relate', 'to', 'some', 'of', 'the', 'main', 'features', 'of', 'the', 'theory', 'of', 'quanta', 'namely', 'contextuality', 'paraconsistency', 'probability', 'and', 'measurement']] | [-0.06530489954022095, 0.09502966721456968, -0.14840282227594367, 0.09328351565396663, -0.09329548661990725, -0.10817381043044716, 0.05480907973353319, 0.3470376245677471, -0.27647040101949166, -0.2885097443154946, 0.03231162816818957, -0.27270072629404035, -0.17539527004143013, 0.15702836063796097, -0.1613805887490972, 0.023788406596442244, 0.01777351168632392, 0.07153830182325747, -0.05554161194145449, -0.25071881030033316, 0.3448136233809865, 0.06563924818261306, 0.2778179946825984, 0.07557826579462007, 0.09218671551027056, 0.015358598101116026, -0.031057022188066448, -0.00027718747841175067, -0.11601808108666914, 0.17476126823823937, 0.28994215007141694, 0.21564053809726322, 0.2877345047315064, -0.4413892105605799, -0.16181187336477115, 0.10982453033385664, 0.12851460631360712, 0.13357147287827023, 0.030204071500098583, -0.29445026696842047, 0.07348211813680876, -0.17004258582157264, -0.10735255846580893, -0.13667411547269404, -0.004008672478579983, -0.04962909384990668, -0.19297197221096643, 0.028049332558683877, 0.09283678732889215, 0.03490683882852498, -0.03713406296266896, -0.061729673046580294, 0.04757598176905789, 0.13371558081281862, 0.02206316624993708, -0.013245619646244749, 0.09900924603253142, -0.15191960722428852, -0.15871017155976794, 0.3958036465973584, -0.0006835365682341082, -0.20230685395774306, 0.1731049850602279, -0.16047924623066157, -0.14930826741433942, 0.05492147671769267, 0.14495803030764626, 0.09803090434636652, -0.1417380986523997, 0.016045609852731152, -0.039388907737261857, 0.17919214987004004, 0.06353755116213075, 0.10947233555327199, 0.20130728246144874, 0.09545019240905867, 0.03917341745103296, 0.15067335267157592, -0.05292215541523603, -0.12611148936059519, -0.3379590356717673, -0.20392988691317668, -0.16020470946311913, 0.09191817305661071, -0.032886627504359646, -0.12892872187280163, 0.42603786520122255, 0.2631157971606542, 0.18708507924043027, 0.0477118305429893, 0.2671781322839622, 0.06562746197738945, 0.02165255020612601, 0.022673375971768935, 0.18375553315194545, 0.1279067740314784, 0.08711155817469525, -0.17617985028917565, 0.047830734145107495, 0.011143116018802081] |
1,802.00416 | Semiclassical geometry of integrable systems | The main result of this paper is a formula for the scalar product of
semiclassical eigenvectors of two integrable systems on the same symplectic
manifold. An important application of this formula is the Ponzano-Regge type of
asymptotic of Racah-Wigner coefficients.
| math-ph hep-th math.MP math.RT | the main result of this paper is a formula for the scalar product of semiclassical eigenvectors of two integrable systems on the same symplectic manifold an important application of this formula is the ponzanoregge type of asymptotic of racahwigner coefficients | [['the', 'main', 'result', 'of', 'this', 'paper', 'is', 'a', 'formula', 'for', 'the', 'scalar', 'product', 'of', 'semiclassical', 'eigenvectors', 'of', 'two', 'integrable', 'systems', 'on', 'the', 'same', 'symplectic', 'manifold', 'an', 'important', 'application', 'of', 'this', 'formula', 'is', 'the', 'ponzanoregge', 'type', 'of', 'asymptotic', 'of', 'racahwigner', 'coefficients']] | [-0.19281464018858968, 0.03971593933274562, -0.10375530021265149, 0.08106412310153246, -0.0726179410237819, -0.09961958612548187, -0.049111480798455884, 0.24003546102903783, -0.22903811619617045, -0.18420451669953763, 0.11447688937187195, -0.22398681207560003, -0.23395161936059594, 0.19834959893487394, -0.09814835470169783, 0.043719798466190694, 0.07168859493685886, 0.11943615131312982, -0.12331732311286032, -0.2301914192736149, 0.445448810281232, 0.02082826163386926, 0.2489967011846602, 0.06456400197930634, 0.13625080755446106, 0.023289570945780724, -0.007229132042266428, -0.1004773531574756, -0.13636707856785507, 0.18465313749038614, 0.23911505015566945, 0.06176729261642322, 0.2096133732702583, -0.36384897110983727, -0.11664105725940317, 0.10191621673293412, 0.19549175347201525, 0.10741287999553606, 0.02675933300924953, -0.24524667840451003, 0.06352615110808983, -0.20040341312997043, -0.22378567764535545, -0.027947321347892285, 0.024992220592685042, -0.010126052680425346, -0.254261681297794, 0.08106921133585274, 0.16355745131149887, 0.06266336673870683, -0.09955599865643308, -0.1286226585623808, 0.02316580619663, 0.12984638455091044, 0.07912507244618609, -0.005399091521394439, 0.04888166422024369, -0.0750599769758992, -0.10058226757973898, 0.33524478967301546, -0.08072304581291974, -0.2529055428691208, 0.10164681626483799, -0.11630324925063178, -0.18438883181661367, 0.06633051689132116, 0.12548580039292573, 0.18024036488495768, -0.14211982656270267, 0.18448785366490483, -0.08524738473352045, 0.053144838009029624, 0.061114950804039836, 0.027429062779992817, 0.14373126612626946, 0.11570036582998, 0.05587751260027289, 0.1664136681240052, 0.009516901691677048, -0.12395420769462362, -0.3834033250808716, -0.2692984861321747, -0.24507764216978103, 0.15188970970921217, -0.1982311271247454, -0.236263519176282, 0.4442151166498661, 0.07228683615103364, 0.1716602688189596, 0.07882600530865602, 0.28775454675778744, 0.1949049722054042, 0.005986645701341331, -0.008629086497239768, 0.15501958220265805, 0.2457310574129224, 0.05874190996401012, -0.20658240956254303, -0.008090530429035426, 0.20652370147872717] |
1,802.00417 | On torus actions of higher complexity | We systematically produce algebraic varieties with torus action by
constructing them as suitably embedded subvarieties of toric varieties. The
resulting varieties admit an explicit treatment in terms of toric geometry and
graded ring theory. Our approach extends existing constructions of rational
varieties with torus action of complexity one and delivers all Mori dream
spaces with torus action. We exhibit the example class of general arrangement
varieties and obtain classification results in the case of complexity two and
Picard number at most two, extending former work in complexity one.
| math.AG | we systematically produce algebraic varieties with torus action by constructing them as suitably embedded subvarieties of toric varieties the resulting varieties admit an explicit treatment in terms of toric geometry and graded ring theory our approach extends existing constructions of rational varieties with torus action of complexity one and delivers all mori dream spaces with torus action we exhibit the example class of general arrangement varieties and obtain classification results in the case of complexity two and picard number at most two extending former work in complexity one | [['we', 'systematically', 'produce', 'algebraic', 'varieties', 'with', 'torus', 'action', 'by', 'constructing', 'them', 'as', 'suitably', 'embedded', 'subvarieties', 'of', 'toric', 'varieties', 'the', 'resulting', 'varieties', 'admit', 'an', 'explicit', 'treatment', 'in', 'terms', 'of', 'toric', 'geometry', 'and', 'graded', 'ring', 'theory', 'our', 'approach', 'extends', 'existing', 'constructions', 'of', 'rational', 'varieties', 'with', 'torus', 'action', 'of', 'complexity', 'one', 'and', 'delivers', 'all', 'mori', 'dream', 'spaces', 'with', 'torus', 'action', 'we', 'exhibit', 'the', 'example', 'class', 'of', 'general', 'arrangement', 'varieties', 'and', 'obtain', 'classification', 'results', 'in', 'the', 'case', 'of', 'complexity', 'two', 'and', 'picard', 'number', 'at', 'most', 'two', 'extending', 'former', 'work', 'in', 'complexity', 'one']] | [-0.14183577586663887, -0.006456939798392175, -0.06118068121246655, 0.046644932378760794, -0.0861068629945459, -0.17931955307722092, -0.042973880596532996, 0.3500966302500191, -0.2693632944098102, -0.26112164374948904, 0.09034578429550906, -0.21831911197990517, -0.16082790023541416, 0.2426927392423915, -0.1941235996253619, -0.03385673118728763, 0.01120534212201495, 0.016040877904742956, -0.11184128611454401, -0.40835587453859096, 0.46054896668912, -0.02884505717189644, 0.24991998534162782, 0.012412266837517645, 0.10391222395595502, 0.010462340073321353, -0.008252038879701022, 0.007960253839635036, -0.11981362077164125, 0.19144002101595767, 0.36920219217427075, 0.08288801415950399, 0.1397054743217516, -0.4049844677898694, -0.17080575616141272, 0.16989599155600776, 0.11271062762667002, 0.08472631001760336, -0.0011777742660011757, -0.20912317813913847, 0.015583951687651941, -0.1965266180288216, -0.22722863444571637, -0.12423050997313112, -0.0026023748584768987, 0.023001672435467215, -0.18292297296945684, -0.08279393247159367, 0.10997464918446812, 0.1777327317977324, -0.04128645417883738, -0.09357886925731278, -0.0541196422921282, 0.0660526308347471, -0.0012969247658144343, 0.05471653983907097, 0.11489716433623637, -0.11450400925770571, -0.1627070210789415, 0.3741561788430607, -0.034531907316043296, -0.26484389034819533, 0.18322040320543403, -0.1531871906164187, -0.1500895622249862, 0.20179112895857543, 0.07615658713885667, 0.19085533601570537, 0.04452111533927647, 0.15728875050395305, -0.13365080318974584, 0.02333823674284345, 0.10801150076175955, 0.04949876296781109, 0.11399008178109811, 0.13220917741207153, 0.03594515334572696, 0.15076033295058136, 0.012499976625060133, -0.10896642208403633, -0.33206380349160597, -0.14366556407714431, -0.0489798389197941, 0.1646578422779302, -0.1411785456789816, -0.15371316516856579, 0.39093412477946415, 0.05736262471658516, 0.19582267458529465, 0.15987443846328955, 0.2528258597647602, -0.01840256337097592, 0.017395619927397507, 0.08249829855049029, 0.11146282086106525, 0.19340081824338995, -0.08095886378908869, -0.12317786842521111, -0.03795333380218257, 0.2630232430052605] |
1,802.00418 | (Log-)epiperimetric inequality and regularity over smooth cones for
almost Area-Minimizing currents | We prove a new logarithmic epiperimetric inequality for multiplicity-one
stationary cones with isolated singularity by flowing in the radial direction
any given trace along appropriately chosen directions. In contrast to previous
epiperimetric inequalities for minimal surfaces (e.g. those of Reifenberg,
Taylor and White), we need no a priori assumptions on the structure of the cone
(e.g. integrability). Moreover, if the cone is integrable (not only through
rotations), we recover the classical epiperimetric inequality. As a consequence
we deduce a new $\varepsilon$-regularity result for almost area-minimizing
currents at singular points, where at least one blow-up is a multiplicity-one
cone with isolated singularity. This result is similar to the one for
stationary varifolds of Leon Simon, but independent from it since almost
minimizers do not satisfy any equation.
| math.AP math.DG | we prove a new logarithmic epiperimetric inequality for multiplicityone stationary cones with isolated singularity by flowing in the radial direction any given trace along appropriately chosen directions in contrast to previous epiperimetric inequalities for minimal surfaces eg those of reifenberg taylor and white we need no a priori assumptions on the structure of the cone eg integrability moreover if the cone is integrable not only through rotations we recover the classical epiperimetric inequality as a consequence we deduce a new varepsilonregularity result for almost areaminimizing currents at singular points where at least one blowup is a multiplicityone cone with isolated singularity this result is similar to the one for stationary varifolds of leon simon but independent from it since almost minimizers do not satisfy any equation | [['we', 'prove', 'a', 'new', 'logarithmic', 'epiperimetric', 'inequality', 'for', 'multiplicityone', 'stationary', 'cones', 'with', 'isolated', 'singularity', 'by', 'flowing', 'in', 'the', 'radial', 'direction', 'any', 'given', 'trace', 'along', 'appropriately', 'chosen', 'directions', 'in', 'contrast', 'to', 'previous', 'epiperimetric', 'inequalities', 'for', 'minimal', 'surfaces', 'eg', 'those', 'of', 'reifenberg', 'taylor', 'and', 'white', 'we', 'need', 'no', 'a', 'priori', 'assumptions', 'on', 'the', 'structure', 'of', 'the', 'cone', 'eg', 'integrability', 'moreover', 'if', 'the', 'cone', 'is', 'integrable', 'not', 'only', 'through', 'rotations', 'we', 'recover', 'the', 'classical', 'epiperimetric', 'inequality', 'as', 'a', 'consequence', 'we', 'deduce', 'a', 'new', 'varepsilonregularity', 'result', 'for', 'almost', 'areaminimizing', 'currents', 'at', 'singular', 'points', 'where', 'at', 'least', 'one', 'blowup', 'is', 'a', 'multiplicityone', 'cone', 'with', 'isolated', 'singularity', 'this', 'result', 'is', 'similar', 'to', 'the', 'one', 'for', 'stationary', 'varifolds', 'of', 'leon', 'simon', 'but', 'independent', 'from', 'it', 'since', 'almost', 'minimizers', 'do', 'not', 'satisfy', 'any', 'equation']] | [-0.14220471333320592, 0.04866578188976125, -0.12816206013251627, 0.10293399144910158, -0.10498940862996119, -0.1925394659943228, 0.03413724116283461, 0.3256607583154821, -0.28813875386018367, -0.20859430790952746, 0.14496062524775635, -0.30416036142952857, -0.1038346232528547, 0.18874617585439293, -0.11399824975708885, 0.052810274145846804, 0.045046817917849806, 0.03564488187031303, -0.09788776723860157, -0.25122346135691576, 0.3795210154180134, -0.056764602186232214, 0.203749838850594, 0.05636899671073826, 0.11463372962593678, 0.03589990255718548, 0.03380728472534213, 0.021175440639213082, -0.17627650600606723, 0.07019820027164228, 0.2151715063105618, 0.05984223264472564, 0.24227266874171735, -0.39770152382109136, -0.19840272499566217, 0.15478389996421774, 0.1319272372701172, 0.07942556107549795, -0.04401870125129501, -0.2511461516103101, 0.12072629656731373, -0.05482553628953322, -0.26776750256780474, -0.04907736471218486, -8.036784406396604e-05, 0.0395104211888143, -0.250280239909891, 0.10773251231922398, 0.15060082398029784, 0.05689920873532722, -0.0667661836514959, -0.06410568019389988, -0.047933879552320355, 0.045044407377847366, 0.044044208988207316, 0.07045850965807894, 0.0672758312171532, -0.06190167412361396, -0.09544706650980053, 0.304704360514676, -0.08145252654665253, -0.2562644320128057, 0.16000567758659137, -0.19039444656791313, -0.13922299211105657, 0.11391402547809458, 0.06933781614763633, 0.14916652428736496, -0.11394433292887352, 0.1309065459409751, -0.10199367280842529, 0.0757129794552124, 0.18278701938245268, -0.0023989617013342917, 0.14087471340797722, 0.030332673200598313, 0.20344939022805422, 0.08223853062187868, -0.013228283069717387, -0.0708701587097335, -0.4008988777086848, -0.1944874014173235, -0.19615899616416307, 0.17411715850175824, -0.10349320974614423, -0.2017316025208741, 0.3326591890044732, 0.052820610297780984, 0.20404398173744243, 0.08502564730033987, 0.23484333340653277, 0.09457398689673505, 0.062239024043452766, 0.1473545590415597, 0.2246766124190467, 0.13071579880650258, 0.07548412611146295, -0.09618541940105228, 0.05267448171544525, 0.14505467880960732] |
1,802.00419 | Higgs-boson decay to four fermions in the Two-Higgs-Doublet Model and
Prophecy4f | We present the next-to-leading-order calculation of the partial decay widths
of the light CP-even Higgs boson decaying into four fermions in the
Two-Higgs-Doublet Model. The four different renormalization schemes applied in
the calculation are described as well as the calculation and its implementation
into the analysis tool Prophecy4f. Some sample results show the size of the
next-to-leading-order correction as well as the overall size of the deviation
from the Standard Model prediction.
| hep-ph | we present the nexttoleadingorder calculation of the partial decay widths of the light cpeven higgs boson decaying into four fermions in the twohiggsdoublet model the four different renormalization schemes applied in the calculation are described as well as the calculation and its implementation into the analysis tool prophecy4f some sample results show the size of the nexttoleadingorder correction as well as the overall size of the deviation from the standard model prediction | [['we', 'present', 'the', 'nexttoleadingorder', 'calculation', 'of', 'the', 'partial', 'decay', 'widths', 'of', 'the', 'light', 'cpeven', 'higgs', 'boson', 'decaying', 'into', 'four', 'fermions', 'in', 'the', 'twohiggsdoublet', 'model', 'the', 'four', 'different', 'renormalization', 'schemes', 'applied', 'in', 'the', 'calculation', 'are', 'described', 'as', 'well', 'as', 'the', 'calculation', 'and', 'its', 'implementation', 'into', 'the', 'analysis', 'tool', 'prophecy4f', 'some', 'sample', 'results', 'show', 'the', 'size', 'of', 'the', 'nexttoleadingorder', 'correction', 'as', 'well', 'as', 'the', 'overall', 'size', 'of', 'the', 'deviation', 'from', 'the', 'standard', 'model', 'prediction']] | [-0.023549968797144376, 0.11865078480008782, -0.06509675673118585, 0.13025486718268237, -0.0015633226786222723, -0.1438411848244464, 0.01215856760649735, 0.3331301090592105, -0.20515818648790526, -0.3067178991105821, 0.06554262846475467, -0.3020990304454851, -0.04302396649210197, 0.1722888792800303, 0.08443371605244465, 0.11751570690911547, 0.07935210019867453, 0.01780495746061206, -0.07666047570011061, -0.2365627746718625, 0.26065047591691837, 0.021070930679949623, 0.24162549886710216, 0.0884304126828081, -0.0006069098922630979, 0.047221990884281695, -0.09663253440521657, -0.026487223351270787, -0.10703041868853486, 0.06102671539540299, 0.161057151763493, 0.07251985611704488, 0.18203711341549125, -0.331088616680366, -0.13902060414612707, 0.04411705064639035, 0.18795976979890838, 0.15627149577226696, -0.04436110363652309, -0.3265471969692347, 0.0649010596357079, -0.23973879566053963, -0.12082247785292566, -0.07424011145808941, -0.09203933282858795, -0.05513015693415784, -0.26918610128470594, 0.06054433157098376, -0.019013784343971767, 0.02445930487334004, -0.031822629643203176, -0.22032797636671198, -0.062180497612441994, 0.10233956952449969, 0.15331473499342488, -0.002405296791241401, 0.14881629352587172, -0.15880068390268004, -0.16392954260421297, 0.4572454391099099, -0.151756779032035, -0.17645192164086942, 0.10711019196444088, -0.13667338422965258, -0.111777947193736, 0.12893918463184187, 0.21327330895453794, 0.08108886362363894, -0.13923223088366082, 0.13157872429383133, -0.03417927803012491, 0.14303298594637048, -0.02596686305090164, 0.07611003267164859, 0.13676684069085038, 0.20799543599908552, -0.066647583217774, 0.11860582507021415, -0.10404810258963455, -0.13236338797853225, -0.4506468046973977, -0.16813183429702702, -0.09523255137416224, 0.021861133878701366, -0.12039610357108661, -0.18027240209954065, 0.4473571074065856, 0.1323573330624236, 0.2561693534436118, 0.07130959874484688, 0.34680008991724914, 0.11430895862091954, 0.10961718612169433, 0.030374471499170694, 0.27477677826350877, 0.1760172550695845, 0.07646572639027403, -0.2650902257009875, 0.026797246174990304, 0.11133837652677256] |
1,802.0042 | Obfuscated Gradients Give a False Sense of Security: Circumventing
Defenses to Adversarial Examples | We identify obfuscated gradients, a kind of gradient masking, as a phenomenon
that leads to a false sense of security in defenses against adversarial
examples. While defenses that cause obfuscated gradients appear to defeat
iterative optimization-based attacks, we find defenses relying on this effect
can be circumvented. We describe characteristic behaviors of defenses
exhibiting the effect, and for each of the three types of obfuscated gradients
we discover, we develop attack techniques to overcome it. In a case study,
examining non-certified white-box-secure defenses at ICLR 2018, we find
obfuscated gradients are a common occurrence, with 7 of 9 defenses relying on
obfuscated gradients. Our new attacks successfully circumvent 6 completely, and
1 partially, in the original threat model each paper considers.
| cs.LG cs.AI cs.CR | we identify obfuscated gradients a kind of gradient masking as a phenomenon that leads to a false sense of security in defenses against adversarial examples while defenses that cause obfuscated gradients appear to defeat iterative optimizationbased attacks we find defenses relying on this effect can be circumvented we describe characteristic behaviors of defenses exhibiting the effect and for each of the three types of obfuscated gradients we discover we develop attack techniques to overcome it in a case study examining noncertified whiteboxsecure defenses at iclr 2018 we find obfuscated gradients are a common occurrence with 7 of 9 defenses relying on obfuscated gradients our new attacks successfully circumvent 6 completely and 1 partially in the original threat model each paper considers | [['we', 'identify', 'obfuscated', 'gradients', 'a', 'kind', 'of', 'gradient', 'masking', 'as', 'a', 'phenomenon', 'that', 'leads', 'to', 'a', 'false', 'sense', 'of', 'security', 'in', 'defenses', 'against', 'adversarial', 'examples', 'while', 'defenses', 'that', 'cause', 'obfuscated', 'gradients', 'appear', 'to', 'defeat', 'iterative', 'optimizationbased', 'attacks', 'we', 'find', 'defenses', 'relying', 'on', 'this', 'effect', 'can', 'be', 'circumvented', 'we', 'describe', 'characteristic', 'behaviors', 'of', 'defenses', 'exhibiting', 'the', 'effect', 'and', 'for', 'each', 'of', 'the', 'three', 'types', 'of', 'obfuscated', 'gradients', 'we', 'discover', 'we', 'develop', 'attack', 'techniques', 'to', 'overcome', 'it', 'in', 'a', 'case', 'study', 'examining', 'noncertified', 'whiteboxsecure', 'defenses', 'at', 'iclr', '2018', 'we', 'find', 'obfuscated', 'gradients', 'are', 'a', 'common', 'occurrence', 'with', '7', 'of', '9', 'defenses', 'relying', 'on', 'obfuscated', 'gradients', 'our', 'new', 'attacks', 'successfully', 'circumvent', '6', 'completely', 'and', '1', 'partially', 'in', 'the', 'original', 'threat', 'model', 'each', 'paper', 'considers']] | [-0.15834576009462278, 0.01896291406204303, -0.07510654629440978, 0.12313140391973623, -0.08176781673100778, -0.23295378256201124, 0.09843308165630636, 0.35885659483416626, -0.23500734434152643, -0.3361307880220314, 0.12087228695648568, -0.28176492961744465, -0.2398330082030346, 0.1934199477880611, -0.1776703514236336, 0.04007503806885022, -0.012406745413318276, -0.07372088801930658, -0.03665250985553333, -0.3446201244388552, 0.34949720073491336, 0.000358834842578896, 0.2543365643864187, 0.04026962337029545, 0.07543706077461441, -0.04404696679169622, -0.02539476735983044, 0.05054416625838106, -0.06976022418105761, 0.07449240253578561, 0.2579446115337002, 0.19308108211650202, 0.35583924731860556, -0.4118979893391952, -0.22290368558606133, 0.11078492531475301, 0.1420784236630425, 0.24676001204837425, -0.10653363969371034, -0.30919118361295356, 0.1689135777463283, -0.20933021595313525, -0.12046146340435371, -0.12204728419601452, -0.05245465489764077, -0.006415457560312158, -0.23861929092090578, 0.03651864452500983, 0.09830872255455082, 0.08655731133185326, -0.022625421127304434, -0.08388970750772083, 0.028479436736476297, 0.10489260369213298, 0.06016631483313783, -0.03367928878675836, 0.20832253352273256, -0.0966324525817375, -0.18772973786787286, 0.2872356134466827, -0.049581801309250294, -0.19349596131784588, 0.1865091231651604, 0.00907983423579329, -0.18210060267786807, 0.0839001460156093, 0.22464324096411778, 0.14130742312797034, -0.12517000276905796, -0.02513076137693133, 0.04486682288115844, 0.18359675034492587, 0.11130333452213866, 0.0059187593481813865, 0.1698400714745124, 0.11097060851898277, 0.10951630635342251, 0.18634288728062529, -0.12876294360806545, -0.014019956188470436, -0.24517869835641856, -0.09657069578922044, -0.11346131263417192, 0.02349574747107302, -0.0024260652055090757, -0.14619304390313725, 0.37423973930223536, 0.28039691754383966, 0.19597802413239454, 0.06876713347931702, 0.3710911841675018, 0.00540831369580701, 0.11376854914008921, 0.150120397664917, 0.2409093257864394, -0.007481503719463945, 0.07660103103650423, -0.16096557314061405, 0.1884874610303086, 0.02606126162378738] |
1,802.00421 | Deep-Temporal LSTM for Daily Living Action Recognition | In this paper, we propose to improve the traditional use of RNNs by employing
a many to many model for video classification. We analyze the importance of
modeling spatial layout and temporal encoding for daily living action
recognition. Many RGB methods focus only on short term temporal information
obtained from optical flow. Skeleton based methods on the other hand show that
modeling long term skeleton evolution improves action recognition accuracy. In
this work, we propose a deep-temporal LSTM architecture which extends standard
LSTM and allows better encoding of temporal information. In addition, we
propose to fuse 3D skeleton geometry with deep static appearance. We validate
our approach on public available CAD60, MSRDailyActivity3D and NTU-RGB+D,
achieving competitive performance as compared to the state-of-the art.
| cs.CV | in this paper we propose to improve the traditional use of rnns by employing a many to many model for video classification we analyze the importance of modeling spatial layout and temporal encoding for daily living action recognition many rgb methods focus only on short term temporal information obtained from optical flow skeleton based methods on the other hand show that modeling long term skeleton evolution improves action recognition accuracy in this work we propose a deeptemporal lstm architecture which extends standard lstm and allows better encoding of temporal information in addition we propose to fuse 3d skeleton geometry with deep static appearance we validate our approach on public available cad60 msrdailyactivity3d and nturgbd achieving competitive performance as compared to the stateofthe art | [['in', 'this', 'paper', 'we', 'propose', 'to', 'improve', 'the', 'traditional', 'use', 'of', 'rnns', 'by', 'employing', 'a', 'many', 'to', 'many', 'model', 'for', 'video', 'classification', 'we', 'analyze', 'the', 'importance', 'of', 'modeling', 'spatial', 'layout', 'and', 'temporal', 'encoding', 'for', 'daily', 'living', 'action', 'recognition', 'many', 'rgb', 'methods', 'focus', 'only', 'on', 'short', 'term', 'temporal', 'information', 'obtained', 'from', 'optical', 'flow', 'skeleton', 'based', 'methods', 'on', 'the', 'other', 'hand', 'show', 'that', 'modeling', 'long', 'term', 'skeleton', 'evolution', 'improves', 'action', 'recognition', 'accuracy', 'in', 'this', 'work', 'we', 'propose', 'a', 'deeptemporal', 'lstm', 'architecture', 'which', 'extends', 'standard', 'lstm', 'and', 'allows', 'better', 'encoding', 'of', 'temporal', 'information', 'in', 'addition', 'we', 'propose', 'to', 'fuse', '3d', 'skeleton', 'geometry', 'with', 'deep', 'static', 'appearance', 'we', 'validate', 'our', 'approach', 'on', 'public', 'available', 'cad60', 'msrdailyactivity3d', 'and', 'nturgbd', 'achieving', 'competitive', 'performance', 'as', 'compared', 'to', 'the', 'stateofthe', 'art']] | [-0.03577256761491299, -0.03709217913502689, -0.07101559580941141, 0.05063552269519669, -0.11744560986711097, -0.16074853237287318, -0.01018413167720091, 0.4847178040149291, -0.24393254324739938, -0.32203771172414636, 0.08646337980162044, -0.2431344383162656, -0.21172002403927612, 0.1919744801341964, -0.17219942901283503, 0.06882142332769269, 0.17143715453172517, 0.07672435342341907, -0.07228417065925896, -0.2736244565607164, 0.26388282822214126, 0.03206809215061944, 0.37802203091954395, 0.01937923176321855, 0.15750027172005743, 0.03114817968823693, -0.08408478967660715, -0.010987724731714764, -0.07809970926952574, 0.22856289230879734, 0.23420607505273844, 0.15955937761500236, 0.2621523460858186, -0.4465123140758234, -0.2929401987824928, 0.03412413433933061, 0.16531430485019508, 0.12383781624707771, -4.5245300693637576e-05, -0.316819178964173, 0.0736235150497807, -0.18848125354102083, 0.01765771246368974, -0.16814099971112634, -0.03578885797842229, -0.009606606957179395, -0.24943013895641675, 0.043602622586517974, 0.0905184232108372, 0.06875384543552872, -0.06699440537130244, -0.10245485119314764, 0.045999963738963257, 0.21509024866833543, 0.028336276299289375, 0.06980858262712983, 0.09868480073728729, -0.1964310990100003, -0.14815006398187935, 0.3601323054595427, -0.14632862918309805, -0.203209613549931, 0.2171086172577117, -0.04322338419242893, -0.16140281850441304, 0.06523753774413947, 0.23869829317665475, 0.14491165397219236, -0.15516604358438124, 0.020963551330838107, -0.01955460317525243, 0.21544643707404082, 0.07333006124081444, 0.06811142295660559, 0.15323924874571299, 0.3267806503721628, -0.009862459443167068, 0.13201498027846664, -0.15819377204487947, -0.10344131469480262, -0.1764656550535732, -0.07387486180436821, -0.12720306177646662, -0.015775159320770955, -0.1078984274117378, -0.13873596127676077, 0.4290225764751927, 0.3003904816332804, 0.20040595631523073, 0.12393915367001006, 0.3973799284455205, -0.002645448392857451, 0.09383817874895763, 0.09092822260692839, 0.1516771241041162, -0.0030365876587923647, 0.1469961889396029, -0.2044565119946083, 0.057776995636291864, 0.1325086133705148] |
1,802.00422 | Phase diagram of the quantum Ising model with long-range interactions on
an infinite-cylinder triangular lattice | Obtaining quantitative ground-state behavior for geometrically-frustrated
quantum magnets with long-range interactions is challenging for numerical
methods. Here, we demonstrate that the ground states of these systems on
two-dimensional lattices can be efficiently obtained using state-of-the-art
translation-invariant variants of matrix product states and density-matrix
renormalization-group algorithms. We use these methods to calculate the
fully-quantitative ground-state phase diagram of the long-range interacting
triangular Ising model with a transverse field on 6-leg infinite-length
cylinders, and scrutinize the properties of the detected phases. We compare
these results with those of the corresponding nearest neighbor model. Our
results suggest that, for such long-range Hamiltonians, the long-range quantum
fluctuations always lead to long-range correlations, where correlators exhibit
power-law decays instead of the conventional exponential drops observed for
short-range correlated gapped phases. Our results are relevant for comparisons
with recent ion-trap quantum simulator experiments that demonstrate
highly-controllable long-range spin couplings for several hundred ions.
| cond-mat.str-el | obtaining quantitative groundstate behavior for geometricallyfrustrated quantum magnets with longrange interactions is challenging for numerical methods here we demonstrate that the ground states of these systems on twodimensional lattices can be efficiently obtained using stateoftheart translationinvariant variants of matrix product states and densitymatrix renormalizationgroup algorithms we use these methods to calculate the fullyquantitative groundstate phase diagram of the longrange interacting triangular ising model with a transverse field on 6leg infinitelength cylinders and scrutinize the properties of the detected phases we compare these results with those of the corresponding nearest neighbor model our results suggest that for such longrange hamiltonians the longrange quantum fluctuations always lead to longrange correlations where correlators exhibit powerlaw decays instead of the conventional exponential drops observed for shortrange correlated gapped phases our results are relevant for comparisons with recent iontrap quantum simulator experiments that demonstrate highlycontrollable longrange spin couplings for several hundred ions | [['obtaining', 'quantitative', 'groundstate', 'behavior', 'for', 'geometricallyfrustrated', 'quantum', 'magnets', 'with', 'longrange', 'interactions', 'is', 'challenging', 'for', 'numerical', 'methods', 'here', 'we', 'demonstrate', 'that', 'the', 'ground', 'states', 'of', 'these', 'systems', 'on', 'twodimensional', 'lattices', 'can', 'be', 'efficiently', 'obtained', 'using', 'stateoftheart', 'translationinvariant', 'variants', 'of', 'matrix', 'product', 'states', 'and', 'densitymatrix', 'renormalizationgroup', 'algorithms', 'we', 'use', 'these', 'methods', 'to', 'calculate', 'the', 'fullyquantitative', 'groundstate', 'phase', 'diagram', 'of', 'the', 'longrange', 'interacting', 'triangular', 'ising', 'model', 'with', 'a', 'transverse', 'field', 'on', '6leg', 'infinitelength', 'cylinders', 'and', 'scrutinize', 'the', 'properties', 'of', 'the', 'detected', 'phases', 'we', 'compare', 'these', 'results', 'with', 'those', 'of', 'the', 'corresponding', 'nearest', 'neighbor', 'model', 'our', 'results', 'suggest', 'that', 'for', 'such', 'longrange', 'hamiltonians', 'the', 'longrange', 'quantum', 'fluctuations', 'always', 'lead', 'to', 'longrange', 'correlations', 'where', 'correlators', 'exhibit', 'powerlaw', 'decays', 'instead', 'of', 'the', 'conventional', 'exponential', 'drops', 'observed', 'for', 'shortrange', 'correlated', 'gapped', 'phases', 'our', 'results', 'are', 'relevant', 'for', 'comparisons', 'with', 'recent', 'iontrap', 'quantum', 'simulator', 'experiments', 'that', 'demonstrate', 'highlycontrollable', 'longrange', 'spin', 'couplings', 'for', 'several', 'hundred', 'ions']] | [-0.13462480511643912, 0.21192952231360498, -0.04279759066850776, 0.09211085240870127, 0.021077395399254174, -0.1853087365034049, -0.004265883719797361, 0.4177955042264641, -0.21420253150815732, -0.25847129643677846, 0.02014434341762266, -0.36419677430100433, -0.13766269450361382, 0.19214810481078107, 0.11759356629065149, 0.08895727823016374, 0.06731978076357037, -0.015435473757400496, -0.1447231895776708, -0.2452508542520849, 0.2757988589774332, -0.016553848023424307, 0.27198120824711985, 0.08629828789717939, 0.027184213585003395, 0.02167384230136259, 0.08961584190646671, 0.02925186120420184, -0.15661574774081874, 0.08048102365605762, 0.2189273091642288, -0.04228272187293903, 0.14819677653467309, -0.4733926581525027, -0.22501394827468923, 0.08913249557850601, 0.16420875675776936, 0.16304653837690003, -0.05112705535489798, -0.3719279295541601, 0.024448328279516953, -0.1977872061575061, -0.1325890158912269, -0.2195302792753042, -0.029482377585014072, 0.06465538082905879, -0.26814721283273235, 0.12943138429824874, 0.040939555918057896, 0.07833927748916186, -0.034458427009019646, -0.12338930999936715, 0.029697914166082563, 0.10868239265624179, 0.002423998808858227, 0.003679136286349329, 0.11409276178782832, -0.1296996141126864, -0.21487898590068702, 0.3462579254290625, -0.047930517472320376, -0.14912765332153194, 0.2286550330942216, -0.12134175444893341, -0.139849539549562, 0.11246593461233616, 0.13666735734305765, 0.08293763880477581, -0.11130389035998346, 0.054675432412457745, -0.008440751598331414, 0.176572907703278, -0.05989726420893806, 0.07624243589896351, 0.20627470070827905, 0.14151273578188497, 0.023276580551843326, 0.1703243854763433, -0.08475436148539102, -0.20332286814435016, -0.2274074239834939, -0.12022868624556657, -0.24063144711624473, 0.014890837301308774, -0.10432016948371176, -0.17868207671921954, 0.4124083312942761, 0.20020602294722292, 0.17045344281877864, 0.051565687674454935, 0.23493046081331495, 0.06412608950073537, 0.050147862192753655, 0.04865884200416861, 0.25437922365740195, 0.13957883735595603, 0.03711434661359717, -0.25767829407912307, 0.014539941165385742, 0.07077348903491328] |
1,802.00423 | An improved lower bound for superluminal quantum communications | Superluminal communications have been proposed to solve the Einstein,
Podolsky and Rosen (EPR) paradox. So far, no evidence for these superluminal
communications has been obtained and only lower bounds for the superluminal
velocities have been established. In this paper we describe an improved
experiment that increases by about two orders of magnitude the maximum
detectable superluminal velocities. The locality, the freedom-of-choice and the
detection loopholes are not addressed here. No evidence for superluminal
communications has been found and a new higher lower bound for their velocities
has been established.
| quant-ph | superluminal communications have been proposed to solve the einstein podolsky and rosen epr paradox so far no evidence for these superluminal communications has been obtained and only lower bounds for the superluminal velocities have been established in this paper we describe an improved experiment that increases by about two orders of magnitude the maximum detectable superluminal velocities the locality the freedomofchoice and the detection loopholes are not addressed here no evidence for superluminal communications has been found and a new higher lower bound for their velocities has been established | [['superluminal', 'communications', 'have', 'been', 'proposed', 'to', 'solve', 'the', 'einstein', 'podolsky', 'and', 'rosen', 'epr', 'paradox', 'so', 'far', 'no', 'evidence', 'for', 'these', 'superluminal', 'communications', 'has', 'been', 'obtained', 'and', 'only', 'lower', 'bounds', 'for', 'the', 'superluminal', 'velocities', 'have', 'been', 'established', 'in', 'this', 'paper', 'we', 'describe', 'an', 'improved', 'experiment', 'that', 'increases', 'by', 'about', 'two', 'orders', 'of', 'magnitude', 'the', 'maximum', 'detectable', 'superluminal', 'velocities', 'the', 'locality', 'the', 'freedomofchoice', 'and', 'the', 'detection', 'loopholes', 'are', 'not', 'addressed', 'here', 'no', 'evidence', 'for', 'superluminal', 'communications', 'has', 'been', 'found', 'and', 'a', 'new', 'higher', 'lower', 'bound', 'for', 'their', 'velocities', 'has', 'been', 'established']] | [-0.16693453597469946, 0.14440365606710298, -0.08705457742587569, 0.11396358540841493, -0.14431805797758396, -0.20894842191463273, 0.01598023708389478, 0.4098463143023212, -0.12153767222496734, -0.3473327081399352, 0.09289060436644371, -0.2668657573253921, -0.09656317897266552, 0.2350249452035079, -0.074197706536212, 0.09020815138820182, 0.03773133470048982, 0.06426731704242444, -0.07507704225306013, -0.24188247555343623, 0.2089358675241303, 0.08085798491525013, 0.3105781162209976, 0.14180651724631532, 0.12652117598885565, -0.07357358115756613, -0.05833424007248008, 0.05288130231201649, -0.1436833535204805, 0.08242672345904486, 0.22061848280470023, 0.18457524716759915, 0.29874439990629303, -0.41761887659517566, -0.29965528481629455, 0.14854163814105847, 0.20233878538174702, 0.16874774117441324, -0.08864479668940721, -0.3694389605099398, 0.07636607347024876, -0.21473271094178886, -0.1451535858370866, -0.04544818018343341, 0.08542464675611994, -0.05760768327464381, -0.1272845952876247, 0.09301385279284434, 0.06003652091577565, 0.08138612843003501, -0.01373769791817732, -0.10336843512826756, 0.04517129544440782, 0.08344832210791077, 0.08113832534238528, -0.030812892089650202, -0.0039089506994305035, -0.08540074673502214, -0.19695652196748872, 0.33050104642935685, -0.03290972939242473, -0.13045255385674118, 0.19741763569822723, -0.13152953530818726, -0.13111593268368277, 0.1480968167503061, 0.11636705978072426, 0.07055633595171437, -0.17884934980296688, 0.0309939239503753, -0.09411940944977523, 0.13584266705543138, 0.19984560817992839, 0.11307657982766879, 0.1718858813270508, 0.031845943735431086, 0.0871564089739172, 0.006960981614427285, -0.09051430968337515, -0.04176854608015398, -0.25989354636227147, -0.18201405060898743, -0.19085046863758914, 0.007954684434245404, 0.0004419574554580567, -0.016340023692791465, 0.2879479026782923, 0.1593718844350804, 0.09086973802186549, 0.009160854168278113, 0.29018784625183663, 0.15169107128102122, 0.10746374236108484, 0.16219453001918083, 0.46858894113409383, 0.14645350004776558, 0.11767750751394569, -0.19665036822951745, 0.11899787222631694, 0.0007041355835671505] |
1,802.00424 | Quantum cohomology and closed-string mirror symmetry for toric varieties | We give a short new computation of the quantum cohomology of an arbitrary
smooth toric variety $X$, by showing directly that the Kodaira-Spencer map of
Fukaya-Oh-Ohta-Ono defines an isomorphism onto a suitable Jacobian ring. The
proof is based on the purely algebraic fact that a class of generalised
Jacobian rings associated to $X$ are free as modules over the Novikov ring. In
contrast to previous results of this kind, $X$ need not be compact. When $X$ is
monotone the presentation we obtain is completely explicit, using only
well-known computations with the standard complex structure.
| math.SG math.AG | we give a short new computation of the quantum cohomology of an arbitrary smooth toric variety x by showing directly that the kodairaspencer map of fukayaohohtaono defines an isomorphism onto a suitable jacobian ring the proof is based on the purely algebraic fact that a class of generalised jacobian rings associated to x are free as modules over the novikov ring in contrast to previous results of this kind x need not be compact when x is monotone the presentation we obtain is completely explicit using only wellknown computations with the standard complex structure | [['we', 'give', 'a', 'short', 'new', 'computation', 'of', 'the', 'quantum', 'cohomology', 'of', 'an', 'arbitrary', 'smooth', 'toric', 'variety', 'x', 'by', 'showing', 'directly', 'that', 'the', 'kodairaspencer', 'map', 'of', 'fukayaohohtaono', 'defines', 'an', 'isomorphism', 'onto', 'a', 'suitable', 'jacobian', 'ring', 'the', 'proof', 'is', 'based', 'on', 'the', 'purely', 'algebraic', 'fact', 'that', 'a', 'class', 'of', 'generalised', 'jacobian', 'rings', 'associated', 'to', 'x', 'are', 'free', 'as', 'modules', 'over', 'the', 'novikov', 'ring', 'in', 'contrast', 'to', 'previous', 'results', 'of', 'this', 'kind', 'x', 'need', 'not', 'be', 'compact', 'when', 'x', 'is', 'monotone', 'the', 'presentation', 'we', 'obtain', 'is', 'completely', 'explicit', 'using', 'only', 'wellknown', 'computations', 'with', 'the', 'standard', 'complex', 'structure']] | [-0.17258236756389764, 0.02493360109331255, -0.10215055859806214, 0.03460128742339526, -0.11854929708320885, -0.14874888287282528, -0.04599122132144948, 0.34805231923831903, -0.36876534657711363, -0.19441431320886662, 0.11157465253664339, -0.17537497203707933, -0.1563000458421463, 0.24612116920182783, -0.14037114939066592, -0.026168144595353528, 0.049340305552679174, 0.07732490315399271, -0.14652267304011324, -0.298800185815669, 0.4144786265381473, -0.012979671603038987, 0.2242049855041377, 0.042798427721247714, 0.12918673833693436, 0.020051147179440298, -0.00797378836556318, 0.006643730908027909, -0.13074136885118973, 0.1616491947949745, 0.2841349512690361, 0.08055946412694423, 0.16417104602504046, -0.3814188085318087, -0.14905081741373113, 0.18052361702467215, 0.09469688504419112, 0.05748597305624726, -0.031407503268750823, -0.25111480558568494, 0.12674453312981912, -0.18713583322885902, -0.14843130381678807, -0.10571405776043205, 0.05497114902282966, 0.057725151231700675, -0.23995247004031045, -0.026943814123366425, 0.11434683932902966, 0.09997702449401642, -0.003801659155795549, -0.05259974018554203, -0.029588607848285042, 0.0553531688281974, -0.05614051572054914, 0.08941733726904669, 0.1171906880756959, -0.08796941846401055, -0.10017898135342972, 0.3433126865073721, -0.06531247856253956, -0.23127035271534893, 0.16881985854025575, -0.13081814880245068, -0.13842442429109297, 0.19119065740403343, 0.03969398227104164, 0.16630988628999827, -0.06623348457868176, 0.1951282670265658, -0.14983831771074774, 0.14120574243010042, 0.04276246692740081, -0.019198254741569783, 0.15676240508068115, 0.09235025897988693, 0.07858480899805262, 0.13941754439617804, 0.003490840136246914, -0.08187142556453957, -0.3780441107265552, -0.2055331303916396, -0.16085887126664214, 0.19336693015886455, -0.08312803243802107, -0.17538235707337313, 0.3859720499987932, 0.057275189671348384, 0.22141329990699887, 0.0874901368292643, 0.2609429896036361, 0.08378384270868759, 0.06769531925129606, 0.024972745499751987, 0.11976668243841367, 0.18390518038018427, -0.003985955633787795, -0.1270452627139364, 0.016537892592555666, 0.1911609460490736] |
1,802.00425 | Trimaximal mixing with a texture zero | We analyze neutrino mass matrices having one texture zero, assuming that the
neutrino mixing matrix has either its first (TM$_1$) or second (TM$_2$) column
identical to that of the tribimaximal mixing matrix. We found that all the six
possible one texture zero neutrino mass matrices are compatible with the
present neutrino oscillation data when combined with TM$_1$ or TM$_2$ mixing.
These textures have interesting predictions for the presently unknown
parameters such as the effective Majorana neutrino mass, the Dirac CP violating
phase and the neutrino mass scale. We also present a way to theoretically
realize some of these textures using $A_4$ symmetry within the framework of
type-I+II seesaw mechanism.
| hep-ph | we analyze neutrino mass matrices having one texture zero assuming that the neutrino mixing matrix has either its first tm_1 or second tm_2 column identical to that of the tribimaximal mixing matrix we found that all the six possible one texture zero neutrino mass matrices are compatible with the present neutrino oscillation data when combined with tm_1 or tm_2 mixing these textures have interesting predictions for the presently unknown parameters such as the effective majorana neutrino mass the dirac cp violating phase and the neutrino mass scale we also present a way to theoretically realize some of these textures using a_4 symmetry within the framework of typeiii seesaw mechanism | [['we', 'analyze', 'neutrino', 'mass', 'matrices', 'having', 'one', 'texture', 'zero', 'assuming', 'that', 'the', 'neutrino', 'mixing', 'matrix', 'has', 'either', 'its', 'first', 'tm_1', 'or', 'second', 'tm_2', 'column', 'identical', 'to', 'that', 'of', 'the', 'tribimaximal', 'mixing', 'matrix', 'we', 'found', 'that', 'all', 'the', 'six', 'possible', 'one', 'texture', 'zero', 'neutrino', 'mass', 'matrices', 'are', 'compatible', 'with', 'the', 'present', 'neutrino', 'oscillation', 'data', 'when', 'combined', 'with', 'tm_1', 'or', 'tm_2', 'mixing', 'these', 'textures', 'have', 'interesting', 'predictions', 'for', 'the', 'presently', 'unknown', 'parameters', 'such', 'as', 'the', 'effective', 'majorana', 'neutrino', 'mass', 'the', 'dirac', 'cp', 'violating', 'phase', 'and', 'the', 'neutrino', 'mass', 'scale', 'we', 'also', 'present', 'a', 'way', 'to', 'theoretically', 'realize', 'some', 'of', 'these', 'textures', 'using', 'a_4', 'symmetry', 'within', 'the', 'framework', 'of', 'typeiii', 'seesaw', 'mechanism']] | [-0.10914944710397939, 0.28680936551285446, 0.02784597437076886, 0.16905617502030976, -0.08519998530712013, -0.18643596007300695, 0.05183547792887879, 0.36398602122389667, -0.2400559582363028, -0.2979028764215016, 0.11603306984494723, -0.2659949958196269, -0.1126621192697128, 0.09478364491390937, 0.05878824590483185, 0.06979667435457862, 0.01253197241335287, -0.003470248075462707, -0.1806072568325454, -0.21887247184923755, 0.35800882443836934, 0.003877989426596996, 0.21265255585697335, -0.00020076124715285565, 0.10629921950455413, -0.09756791284051511, -0.009927203936433983, -0.11962064746083743, -0.08830195611417282, 0.023650637114369266, 0.159319127484763, 0.10156686698864086, 0.032470177043092636, -0.3932989620253307, -0.14700910083334381, 0.18599767014896923, 0.15960250009244326, 0.1040755836036774, -0.14071035474846397, -0.28159533420560556, 0.07989215221973735, -0.22918392432033333, -0.14284523335550356, -0.09318314719124945, -0.04777500415733511, -0.11060463100748666, -0.31997740232821453, 0.10582540966538337, -0.03918632119894028, -0.03634605439670316, 0.01829204410464084, -0.22944248454867427, -0.04081581537227292, 0.08732553420149414, 0.1594556593122559, -0.07726822699497052, 0.07192086858392924, -0.09126807056119614, -0.08090418771148548, 0.43664472136986143, -0.07105775726873667, -0.1796805755098547, 0.10519983240941522, -0.16737961138325205, -0.12925183013884708, 0.08825525266776255, 0.11900660837786871, 0.029054674272929584, -0.18201856984003392, 0.09934067576557586, -0.16204748394121543, 0.13751488634376624, 0.060959750408340896, 0.01685815001624303, 0.28994895665641496, 0.19550818578049609, 0.12256029257849885, -0.06075527998319733, -0.1297773264280153, -0.014656704242251507, -0.3303898783366478, -0.07679124545186349, -0.14947066847939863, 0.07124099226822274, -0.10606392766036618, -0.15974442620650617, 0.4698698603966778, 0.1561696067144838, 0.23662111778324896, 0.03687963069100446, 0.2852737827551201, 0.06646491951040001, 0.11539461584590854, 0.022903023761859456, 0.2713052713274294, 0.16843886597406701, 0.08893081336495799, -0.2691804368175468, 0.032033545033442315, 0.07891888870353546] |
1,802.00426 | New NLOPS predictions for $\boldsymbol{t\bar{t}+b}$-jet production at
the LHC | Measurements of $t\bar{t} H$ production in the $H\to b\bar{b}$ channel depend
in a critical way on the theoretical uncertainty associated with the
irreducible $t\bar{t}+b$-jet background. In this paper, analysing the various
topologies that account for $b$-jet production in association with a $t\bar{t}$
pair, we demonstrate that the process at hand is largely driven by final-state
$g\to b\bar{b}$ splittings. We also show that in five-flavour simulations based
on $t\bar{t}+$multi-jet merging $b$-jet production is mostly driven by the
parton shower, while matrix elements play only a marginal role in the
description of $g\to b\bar{b}$ splittings. Based on these observations we
advocate the use of NLOPS simulations of $pp\to t\bar{t}b\bar{b}$ in the
four-flavour scheme, and we present a new POWHEG generator of this kind.
Predictions and uncertainties for $t\bar{t}+b$-jet observables at the 13 TeV
LHC are presented both for the case of stable top quarks and with
spin-correlated top decays. Besides QCD scale variations we consider also
theoretical uncertainties related to the POWHEG matching method and to the
parton shower modelling, with emphasis on $g\to b\bar{b}$ splittings. In
general, matching and shower uncertainties turn out to be remarkably small.
This is confirmed also by a tuned comparison against Sherpa+OpenLoops.
| hep-ph hep-ex | measurements of tbart h production in the hto bbarb channel depend in a critical way on the theoretical uncertainty associated with the irreducible tbartbjet background in this paper analysing the various topologies that account for bjet production in association with a tbart pair we demonstrate that the process at hand is largely driven by finalstate gto bbarb splittings we also show that in fiveflavour simulations based on tbartmultijet merging bjet production is mostly driven by the parton shower while matrix elements play only a marginal role in the description of gto bbarb splittings based on these observations we advocate the use of nlops simulations of ppto tbartbbarb in the fourflavour scheme and we present a new powheg generator of this kind predictions and uncertainties for tbartbjet observables at the 13 tev lhc are presented both for the case of stable top quarks and with spincorrelated top decays besides qcd scale variations we consider also theoretical uncertainties related to the powheg matching method and to the parton shower modelling with emphasis on gto bbarb splittings in general matching and shower uncertainties turn out to be remarkably small this is confirmed also by a tuned comparison against sherpaopenloops | [['measurements', 'of', 'tbart', 'h', 'production', 'in', 'the', 'hto', 'bbarb', 'channel', 'depend', 'in', 'a', 'critical', 'way', 'on', 'the', 'theoretical', 'uncertainty', 'associated', 'with', 'the', 'irreducible', 'tbartbjet', 'background', 'in', 'this', 'paper', 'analysing', 'the', 'various', 'topologies', 'that', 'account', 'for', 'bjet', 'production', 'in', 'association', 'with', 'a', 'tbart', 'pair', 'we', 'demonstrate', 'that', 'the', 'process', 'at', 'hand', 'is', 'largely', 'driven', 'by', 'finalstate', 'gto', 'bbarb', 'splittings', 'we', 'also', 'show', 'that', 'in', 'fiveflavour', 'simulations', 'based', 'on', 'tbartmultijet', 'merging', 'bjet', 'production', 'is', 'mostly', 'driven', 'by', 'the', 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1,802.00427 | Boundary Conditions and Localization on AdS: Part 1 | We study the role of boundary conditions on the one loop partition function
of ${\cal N}=2$ chiral multiplet of R-charge $\Delta$ on $AdS_2\times S^1$. The
chiral multiplet is coupled to a background vector multiplet which preserves
supersymmetry. We implement normalizable boundary conditions in $AdS_2$ and
develop the Green's function method to obtain the one loop determinant. We
evaluate the one loop determinant for two different actions: the standard
action and the $Q$-exact deformed positive definite action used for
localization. We show that if there exists an integer $n$ in the interval $D: (
\frac{\Delta-1}{2L}, \frac{\Delta}{2L} )$, where $L$ being the ratio of radius
of $AdS_2$ to that of $S^1$, then the one loop determinants obtained for the
two actions differ. It is in this situation that fields which obey normalizable
boundary conditions do not obey supersymmetric boundary conditions. However if
there are no integers in $D$, then fields which obey normalizable boundary
conditions also obey supersymmetric boundary conditions and the one loop
determinants of the two actions precisely agree. We also show that it is only
in the latter situation that the one loop determinant obtained by evaluating
the index of the $D_{10}$ operator associated with the localizing action agrees
with the one loop determinant obtained using Green's function method.
| hep-th | we study the role of boundary conditions on the one loop partition function of cal n2 chiral multiplet of rcharge delta on ads_2times s1 the chiral multiplet is coupled to a background vector multiplet which preserves supersymmetry we implement normalizable boundary conditions in ads_2 and develop the greens function method to obtain the one loop determinant we evaluate the one loop determinant for two different actions the standard action and the qexact deformed positive definite action used for localization we show that if there exists an integer n in the interval d fracdelta12l fracdelta2l where l being the ratio of radius of ads_2 to that of s1 then the one loop determinants obtained for the two actions differ it is in this situation that fields which obey normalizable boundary conditions do not obey supersymmetric boundary conditions however if there are no integers in d then fields which obey normalizable boundary conditions also obey supersymmetric boundary conditions and the one loop determinants of the two actions precisely agree we also show that it is only in the latter situation that the one loop determinant obtained by evaluating the index of the d_10 operator associated with the localizing action agrees with the one loop determinant obtained using greens function method | [['we', 'study', 'the', 'role', 'of', 'boundary', 'conditions', 'on', 'the', 'one', 'loop', 'partition', 'function', 'of', 'cal', 'n2', 'chiral', 'multiplet', 'of', 'rcharge', 'delta', 'on', 'ads_2times', 's1', 'the', 'chiral', 'multiplet', 'is', 'coupled', 'to', 'a', 'background', 'vector', 'multiplet', 'which', 'preserves', 'supersymmetry', 'we', 'implement', 'normalizable', 'boundary', 'conditions', 'in', 'ads_2', 'and', 'develop', 'the', 'greens', 'function', 'method', 'to', 'obtain', 'the', 'one', 'loop', 'determinant', 'we', 'evaluate', 'the', 'one', 'loop', 'determinant', 'for', 'two', 'different', 'actions', 'the', 'standard', 'action', 'and', 'the', 'qexact', 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1,802.00428 | To gauge or not to gauge? | The D0 brane, or BFSS, matrix model is a quantum mechanical theory with an
interesting gravity dual. We consider a variant of this model where we treat
the $SU(N)$ symmetry as a global symmetry, rather than as a gauge symmetry.
This variant contains new non-singlet states. We consider the impact of these
new states on its gravity dual. We argue that the gravity dual is essentially
the same as the one for the original matrix model. The non-singlet states have
higher energy at strong coupling and are therefore dynamically suppressed.
| hep-th | the d0 brane or bfss matrix model is a quantum mechanical theory with an interesting gravity dual we consider a variant of this model where we treat the sun symmetry as a global symmetry rather than as a gauge symmetry this variant contains new nonsinglet states we consider the impact of these new states on its gravity dual we argue that the gravity dual is essentially the same as the one for the original matrix model the nonsinglet states have higher energy at strong coupling and are therefore dynamically suppressed | [['the', 'd0', 'brane', 'or', 'bfss', 'matrix', 'model', 'is', 'a', 'quantum', 'mechanical', 'theory', 'with', 'an', 'interesting', 'gravity', 'dual', 'we', 'consider', 'a', 'variant', 'of', 'this', 'model', 'where', 'we', 'treat', 'the', 'sun', 'symmetry', 'as', 'a', 'global', 'symmetry', 'rather', 'than', 'as', 'a', 'gauge', 'symmetry', 'this', 'variant', 'contains', 'new', 'nonsinglet', 'states', 'we', 'consider', 'the', 'impact', 'of', 'these', 'new', 'states', 'on', 'its', 'gravity', 'dual', 'we', 'argue', 'that', 'the', 'gravity', 'dual', 'is', 'essentially', 'the', 'same', 'as', 'the', 'one', 'for', 'the', 'original', 'matrix', 'model', 'the', 'nonsinglet', 'states', 'have', 'higher', 'energy', 'at', 'strong', 'coupling', 'and', 'are', 'therefore', 'dynamically', 'suppressed']] | [-0.12386424166357352, 0.1874431029461751, -0.08686259943529472, 0.12406958492679729, -0.06641848987071879, -0.16917306400525073, -0.0021073765418906177, 0.28616615274093216, -0.24174892488453123, -0.24303250750526786, 0.08264903413882065, -0.26288640037592914, -0.1483753169498717, 0.06045985692698094, -0.026037575066503553, 0.0009023437270015064, -0.031917617351023685, 0.078400960078256, -0.10806555175481157, -0.20745900148370613, 0.3387278715096828, 0.026314204893747552, 0.27005412901699954, 0.04362221388146281, 0.08959095855760905, 0.015621830365206632, 0.04565572235733271, -0.0038813444475332896, -0.08209399786145595, 0.09083111845538952, 0.1562469028091679, 0.07463514626336594, 0.20676211553832724, -0.44290722525782056, -0.20817798967473208, 0.08563564367230153, 0.11267197160567674, 0.18625473469599255, -0.06132222175106613, -0.27549097295850516, 0.06633451624980403, -0.19658939024019573, -0.14873299423424113, -0.06780143514172071, -0.03258123106012742, -0.1257330796784825, -0.2736869947777854, 0.0740495372731756, 0.003298670798540115, 0.014878134212146203, -0.049083037411845803, -0.11988421111471123, -0.06308527136635449, 0.052589521714900105, 0.06493509104346029, 0.056906090807428374, 0.09703157181308295, -0.1727721360120793, -0.1315191911559345, 0.4210410766924421, -0.08601384792919918, -0.22832276187319722, 0.17779832334878545, -0.11489855396664805, -0.17210282407597535, 0.03096123453384886, 0.14288762845098973, 0.15351462056084225, -0.11337360836979415, 0.15331672291310194, -0.11063873167667124, 0.1505866473644144, 0.021797554376017717, 0.09368844096962776, 0.23277005669660866, 0.1425305777869653, 0.08169921475410875, 0.161784246770872, -0.02932012167875655, -0.12289368220501476, -0.3637659388594329, -0.15389169947916848, -0.154984050269963, 0.08038149218126718, -0.10552939332798511, -0.15615078532654378, 0.41871733003709877, 0.1180998590360913, 0.19852358014840218, 0.04287052001600387, 0.24558598158053227, 0.13228706732625142, 0.09770633963441165, 0.05503022103673882, 0.27584482780140307, 0.14279418669434057, 0.0665658082606064, -0.2819399415308403, -0.02774439429211068, 0.1315239612478763] |
1,802.00429 | Decay of standard model-like Higgs boson $h\rightarrow \mu\tau$ in a
3-3-1 model with inverse seesaw neutrino masses | By adding new gauge singlets of neutral leptons, the improved versions of the
3-3-1 models with right-handed neutrinos have been recently introduced in order
to explain recent experimental neutrino oscillation data through the inverse
seesaw mechanism. We prove that these models predict promising signals of
lepton-flavor-violating decays of the standard-model-like Higgs boson
$h^0_1\rightarrow \mu\tau,e\tau$, which are suppressed in the original
versions. One-loop contributions to these decay amplitudes are introduced in
the unitary gauge. Based on a numerical investigation, we find that the
branching ratios of the decays $h^0_1\rightarrow\mu\tau,e\tau$ can reach values
of $10^{-5}$ in the regions of parameter space satisfying the current
experimental data of the decay $\mu\rightarrow e\gamma$. The value of $10^{-4}$
appears when the Yukawa couplings of leptons are close to the perturbative
limit. Some interesting properties of these regions of parameter space are also
discussed.
| hep-ph | by adding new gauge singlets of neutral leptons the improved versions of the 331 models with righthanded neutrinos have been recently introduced in order to explain recent experimental neutrino oscillation data through the inverse seesaw mechanism we prove that these models predict promising signals of leptonflavorviolating decays of the standardmodellike higgs boson h0_1rightarrow mutauetau which are suppressed in the original versions oneloop contributions to these decay amplitudes are introduced in the unitary gauge based on a numerical investigation we find that the branching ratios of the decays h0_1rightarrowmutauetau can reach values of 105 in the regions of parameter space satisfying the current experimental data of the decay murightarrow egamma the value of 104 appears when the yukawa couplings of leptons are close to the perturbative limit some interesting properties of these regions of parameter space are also discussed | [['by', 'adding', 'new', 'gauge', 'singlets', 'of', 'neutral', 'leptons', 'the', 'improved', 'versions', 'of', 'the', '331', 'models', 'with', 'righthanded', 'neutrinos', 'have', 'been', 'recently', 'introduced', 'in', 'order', 'to', 'explain', 'recent', 'experimental', 'neutrino', 'oscillation', 'data', 'through', 'the', 'inverse', 'seesaw', 'mechanism', 'we', 'prove', 'that', 'these', 'models', 'predict', 'promising', 'signals', 'of', 'leptonflavorviolating', 'decays', 'of', 'the', 'standardmodellike', 'higgs', 'boson', 'h0_1rightarrow', 'mutauetau', 'which', 'are', 'suppressed', 'in', 'the', 'original', 'versions', 'oneloop', 'contributions', 'to', 'these', 'decay', 'amplitudes', 'are', 'introduced', 'in', 'the', 'unitary', 'gauge', 'based', 'on', 'a', 'numerical', 'investigation', 'we', 'find', 'that', 'the', 'branching', 'ratios', 'of', 'the', 'decays', 'h0_1rightarrowmutauetau', 'can', 'reach', 'values', 'of', '105', 'in', 'the', 'regions', 'of', 'parameter', 'space', 'satisfying', 'the', 'current', 'experimental', 'data', 'of', 'the', 'decay', 'murightarrow', 'egamma', 'the', 'value', 'of', '104', 'appears', 'when', 'the', 'yukawa', 'couplings', 'of', 'leptons', 'are', 'close', 'to', 'the', 'perturbative', 'limit', 'some', 'interesting', 'properties', 'of', 'these', 'regions', 'of', 'parameter', 'space', 'are', 'also', 'discussed']] | [-0.08785974527407368, 0.2704795067060601, -0.0022864304551923715, 0.1628668174643449, -0.0694102183536247, -0.14764695617680748, 0.057777265381688876, 0.3067706973740348, -0.20926497250588405, -0.27994551149507363, 0.036954704996336386, -0.29889987155933073, -0.04124513286407347, 0.15147584859557725, 0.03506457019959473, 0.07491546312823495, 0.05914341241673187, -0.008025116680396929, -0.0685670972318837, -0.2799154392391857, 0.28802750056816473, 0.032683757813302454, 0.2210636564840873, 0.04798545362082896, 0.03723636461525327, -0.07648380471358973, -0.0434154385148927, -0.08791932119444633, -0.1361975946469034, 0.07290168897145324, 0.1656427530147657, 0.07106912250940998, 0.12627182717745503, -0.3823313521290267, -0.1435771333605603, 0.1772963008153494, 0.18185993515351717, 0.07370022806356212, -0.06156658956487836, -0.37038271359633657, 0.1112649256191044, -0.17588437695090695, -0.08285492569794534, -0.11258128494578327, -0.01988054573777373, -0.04987152810036032, -0.3553878509611995, 0.09066825696176642, -0.046941187281023575, -0.0295227446395007, -0.017063975492837252, -0.19544906939845533, -0.026005659842242797, 0.020952770309910797, 0.20301008895729428, -0.017663100817137293, 0.1376275746686453, -0.18078084210002865, -0.1791048508120218, 0.3797378813209771, -0.08930196904801523, -0.17469629696052935, 0.1516426241180549, -0.17955994194511463, -0.1820295157669871, 0.13832035990845826, 0.1770557820107098, 0.058772514859016085, -0.15267148427546662, 0.18259207828453294, -0.05483961707601945, 0.10737876521113018, 0.03525415567888154, 0.08488201837020892, 0.22051902019625735, 0.17507092391822004, 0.005859740011187063, 0.06321101356297731, -0.07709242161190896, -0.07873952323915782, -0.3895342557324545, -0.11581127024083226, -0.06666422058845421, 0.05816815014997566, -0.08392650862310634, -0.09551388119795808, 0.421170452637253, 0.16289096421182708, 0.2632543379233943, 0.021612383667552085, 0.26476397206575647, 0.1253667352479641, 0.09291365110203278, 0.012864809862717434, 0.3470816278461522, 0.16025411823454003, 0.08682504191442772, -0.2245566623078452, 0.00747132434302734, 0.09292881627636099] |
1,802.0043 | Linearized Binary Regression | Probit regression was first proposed by Bliss in 1934 to study mortality
rates of insects. Since then, an extensive body of work has analyzed and used
probit or related binary regression methods (such as logistic regression) in
numerous applications and fields. This paper provides a fresh angle to such
well-established binary regression methods. Concretely, we demonstrate that
linearizing the probit model in combination with linear estimators performs on
par with state-of-the-art nonlinear regression methods, such as posterior mean
or maximum aposteriori estimation, for a broad range of real-world regression
problems. We derive exact, closed-form, and nonasymptotic expressions for the
mean-squared error of our linearized estimators, which clearly separates them
from nonlinear regression methods that are typically difficult to analyze. We
showcase the efficacy of our methods and results for a number of synthetic and
real-world datasets, which demonstrates that linearized binary regression finds
potential use in a variety of inference, estimation, signal processing, and
machine learning applications that deal with binary-valued observations or
measurements.
| stat.ML math.ST stat.ME stat.TH | probit regression was first proposed by bliss in 1934 to study mortality rates of insects since then an extensive body of work has analyzed and used probit or related binary regression methods such as logistic regression in numerous applications and fields this paper provides a fresh angle to such wellestablished binary regression methods concretely we demonstrate that linearizing the probit model in combination with linear estimators performs on par with stateoftheart nonlinear regression methods such as posterior mean or maximum aposteriori estimation for a broad range of realworld regression problems we derive exact closedform and nonasymptotic expressions for the meansquared error of our linearized estimators which clearly separates them from nonlinear regression methods that are typically difficult to analyze we showcase the efficacy of our methods and results for a number of synthetic and realworld datasets which demonstrates that linearized binary regression finds potential use in a variety of inference estimation signal processing and machine learning applications that deal with binaryvalued observations or measurements | [['probit', 'regression', 'was', 'first', 'proposed', 'by', 'bliss', 'in', '1934', 'to', 'study', 'mortality', 'rates', 'of', 'insects', 'since', 'then', 'an', 'extensive', 'body', 'of', 'work', 'has', 'analyzed', 'and', 'used', 'probit', 'or', 'related', 'binary', 'regression', 'methods', 'such', 'as', 'logistic', 'regression', 'in', 'numerous', 'applications', 'and', 'fields', 'this', 'paper', 'provides', 'a', 'fresh', 'angle', 'to', 'such', 'wellestablished', 'binary', 'regression', 'methods', 'concretely', 'we', 'demonstrate', 'that', 'linearizing', 'the', 'probit', 'model', 'in', 'combination', 'with', 'linear', 'estimators', 'performs', 'on', 'par', 'with', 'stateoftheart', 'nonlinear', 'regression', 'methods', 'such', 'as', 'posterior', 'mean', 'or', 'maximum', 'aposteriori', 'estimation', 'for', 'a', 'broad', 'range', 'of', 'realworld', 'regression', 'problems', 'we', 'derive', 'exact', 'closedform', 'and', 'nonasymptotic', 'expressions', 'for', 'the', 'meansquared', 'error', 'of', 'our', 'linearized', 'estimators', 'which', 'clearly', 'separates', 'them', 'from', 'nonlinear', 'regression', 'methods', 'that', 'are', 'typically', 'difficult', 'to', 'analyze', 'we', 'showcase', 'the', 'efficacy', 'of', 'our', 'methods', 'and', 'results', 'for', 'a', 'number', 'of', 'synthetic', 'and', 'realworld', 'datasets', 'which', 'demonstrates', 'that', 'linearized', 'binary', 'regression', 'finds', 'potential', 'use', 'in', 'a', 'variety', 'of', 'inference', 'estimation', 'signal', 'processing', 'and', 'machine', 'learning', 'applications', 'that', 'deal', 'with', 'binaryvalued', 'observations', 'or', 'measurements']] | [-0.01028891973000122, -0.059761986083109016, -0.07361482174090314, 0.07520425288225296, -0.11477780588277865, -0.20322875785868524, 0.03743518319438075, 0.42555143095825504, -0.2703934346294462, -0.2869306106756373, 0.153879199407018, -0.2806362720637968, -0.2413058048781439, 0.25777201541477995, -0.11819271918204499, 0.16367551732933286, 0.11621450376129006, 0.00773430938006197, -0.10181653111315582, -0.2957866538270581, 0.26021472977548155, 0.04260210799856861, 0.28048208501848687, -0.03166287784569715, 0.1527391389642683, 0.046231372279069594, -0.04173571367537966, 0.022819168973577823, -0.1172235990441816, 0.13508535061803897, 0.3392811712536325, 0.19719573258842546, 0.3486088549934055, -0.34868180359395723, -0.265815111274672, 0.11338700343309562, 0.13864802637367463, 0.09161067221864913, -0.03705527896285852, -0.27808934952226105, 0.03142950494302346, -0.16265951637207055, -0.017567450140898184, -0.15629406849762834, -0.04000992041433275, 0.05350473016165424, -0.3691641972513824, 0.14356435470285872, 0.04278214264550337, 0.10221927331919532, -0.04717446011547908, -0.18544378285807353, 0.032818528945648635, 0.07292345780226198, 0.09392349611033107, -0.014953943290293398, 0.10343463029254586, -0.14228776177794605, -0.17471258355895194, 0.33339038449793873, -0.09336529591790878, -0.21530017708201052, 0.23101656433058584, -0.061391401704451884, -0.15934020192106824, 0.0868125051861947, 0.29634295214853457, 0.11540589557830017, -0.15949108750877403, 0.03157939871264871, -0.04835086681087865, 0.1559369150725216, 0.028309702921499747, -0.07323650898775314, 0.1488306283803157, 0.20431227817643072, 0.02921015303298013, 0.12242232147950634, -0.1754028484505309, -0.08350583666753841, -0.226105735290841, -0.10785668579472524, -0.19380293687146793, -0.04889112846675988, -0.15503514550641184, -0.2127286440113605, 0.36575557675536313, 0.21860392165665582, 0.178712012124157, 0.14466697187020966, 0.3428851258600267, 0.08827704044623959, 0.026101566422389956, 0.09097081941279878, 0.1905897772266166, 0.12745969385482234, 0.04417322125433513, -0.1746553316039442, 0.09580704098050596, 0.0076767022227414135] |
1,802.00431 | Coded Status Updates in an Energy Harvesting Erasure Channel | We consider an energy harvesting transmitter sending status updates to a
receiver over an erasure channel, where each status update is of length $k$
symbols. The energy arrivals and the channel erasures are independent and
identically distributed (i.i.d.) and Bernoulli distributed in each slot. In
order to combat the effects of the erasures in the channel and the uncertainty
in the energy arrivals, we use channel coding to encode the status update
symbols. We consider two types of channel coding: maximum distance separable
(MDS) codes and rateless erasure codes. For each of these models, we study two
achievable schemes: best-effort and save-and-transmit. In the best-effort
scheme, the transmitter starts transmission right away, and sends a symbol if
it has energy. In the save-and-transmit scheme, the transmitter remains silent
in the beginning in order to save some energy to minimize energy outages in
future slots. We analyze the average age of information (AoI) under each of
these policies. We show through numerical results that as the average recharge
rate decreases, MDS coding with save-and-transmit outperforms all best-effort
schemes. We show that rateless coding with save-and-transmit outperforms all
the other schemes.
| cs.IT cs.NI eess.SP math.IT | we consider an energy harvesting transmitter sending status updates to a receiver over an erasure channel where each status update is of length k symbols the energy arrivals and the channel erasures are independent and identically distributed iid and bernoulli distributed in each slot in order to combat the effects of the erasures in the channel and the uncertainty in the energy arrivals we use channel coding to encode the status update symbols we consider two types of channel coding maximum distance separable mds codes and rateless erasure codes for each of these models we study two achievable schemes besteffort and saveandtransmit in the besteffort scheme the transmitter starts transmission right away and sends a symbol if it has energy in the saveandtransmit scheme the transmitter remains silent in the beginning in order to save some energy to minimize energy outages in future slots we analyze the average age of information aoi under each of these policies we show through numerical results that as the average recharge rate decreases mds coding with saveandtransmit outperforms all besteffort schemes we show that rateless coding with saveandtransmit outperforms all the other schemes | [['we', 'consider', 'an', 'energy', 'harvesting', 'transmitter', 'sending', 'status', 'updates', 'to', 'a', 'receiver', 'over', 'an', 'erasure', 'channel', 'where', 'each', 'status', 'update', 'is', 'of', 'length', 'k', 'symbols', 'the', 'energy', 'arrivals', 'and', 'the', 'channel', 'erasures', 'are', 'independent', 'and', 'identically', 'distributed', 'iid', 'and', 'bernoulli', 'distributed', 'in', 'each', 'slot', 'in', 'order', 'to', 'combat', 'the', 'effects', 'of', 'the', 'erasures', 'in', 'the', 'channel', 'and', 'the', 'uncertainty', 'in', 'the', 'energy', 'arrivals', 'we', 'use', 'channel', 'coding', 'to', 'encode', 'the', 'status', 'update', 'symbols', 'we', 'consider', 'two', 'types', 'of', 'channel', 'coding', 'maximum', 'distance', 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1,802.00432 | PhaseLin: Linear Phase Retrieval | Phase retrieval deals with the recovery of complex- or real-valued signals
from magnitude measurements. As shown recently, the method PhaseMax enables
phase retrieval via convex optimization and without lifting the problem to a
higher dimension. To succeed, PhaseMax requires an initial guess of the
solution, which can be calculated via spectral initializers. In this paper, we
show that with the availability of an initial guess, phase retrieval can be
carried out with an ever simpler, linear procedure. Our algorithm, called
PhaseLin, is the linear estimator that minimizes the mean squared error (MSE)
when applied to the magnitude measurements. The linear nature of PhaseLin
enables an exact and nonasymptotic MSE analysis for arbitrary measurement
matrices. We furthermore demonstrate that by iteratively using PhaseLin, one
arrives at an efficient phase retrieval algorithm that performs on par with
existing convex and nonconvex methods on synthetic and real-world data.
| cs.IT eess.SP math.IT | phase retrieval deals with the recovery of complex or realvalued signals from magnitude measurements as shown recently the method phasemax enables phase retrieval via convex optimization and without lifting the problem to a higher dimension to succeed phasemax requires an initial guess of the solution which can be calculated via spectral initializers in this paper we show that with the availability of an initial guess phase retrieval can be carried out with an ever simpler linear procedure our algorithm called phaselin is the linear estimator that minimizes the mean squared error mse when applied to the magnitude measurements the linear nature of phaselin enables an exact and nonasymptotic mse analysis for arbitrary measurement matrices we furthermore demonstrate that by iteratively using phaselin one arrives at an efficient phase retrieval algorithm that performs on par with existing convex and nonconvex methods on synthetic and realworld data | [['phase', 'retrieval', 'deals', 'with', 'the', 'recovery', 'of', 'complex', 'or', 'realvalued', 'signals', 'from', 'magnitude', 'measurements', 'as', 'shown', 'recently', 'the', 'method', 'phasemax', 'enables', 'phase', 'retrieval', 'via', 'convex', 'optimization', 'and', 'without', 'lifting', 'the', 'problem', 'to', 'a', 'higher', 'dimension', 'to', 'succeed', 'phasemax', 'requires', 'an', 'initial', 'guess', 'of', 'the', 'solution', 'which', 'can', 'be', 'calculated', 'via', 'spectral', 'initializers', 'in', 'this', 'paper', 'we', 'show', 'that', 'with', 'the', 'availability', 'of', 'an', 'initial', 'guess', 'phase', 'retrieval', 'can', 'be', 'carried', 'out', 'with', 'an', 'ever', 'simpler', 'linear', 'procedure', 'our', 'algorithm', 'called', 'phaselin', 'is', 'the', 'linear', 'estimator', 'that', 'minimizes', 'the', 'mean', 'squared', 'error', 'mse', 'when', 'applied', 'to', 'the', 'magnitude', 'measurements', 'the', 'linear', 'nature', 'of', 'phaselin', 'enables', 'an', 'exact', 'and', 'nonasymptotic', 'mse', 'analysis', 'for', 'arbitrary', 'measurement', 'matrices', 'we', 'furthermore', 'demonstrate', 'that', 'by', 'iteratively', 'using', 'phaselin', 'one', 'arrives', 'at', 'an', 'efficient', 'phase', 'retrieval', 'algorithm', 'that', 'performs', 'on', 'par', 'with', 'existing', 'convex', 'and', 'nonconvex', 'methods', 'on', 'synthetic', 'and', 'realworld', 'data']] | [-0.06368328296772108, 0.026861309424416033, -0.10224884891689852, 0.02752762834445156, -0.07338010654814846, -0.16707060311053848, 0.0381966086626374, 0.403148734312633, -0.27622056739597484, -0.3098770562976856, 0.15063537141500877, -0.27105822626758236, -0.18168138844153747, 0.2131118199290258, -0.09650097320434348, 0.11659625068242693, 0.10084192590338403, 0.0485270822067456, -0.1569767172159306, -0.29879882976830263, 0.269930388110465, 0.07333624869071204, 0.2924531450944728, -0.0014379172834792528, 0.13685504849116992, 0.06365324476862262, -0.014931905828416348, 0.01347051143068178, -0.09370294489580656, 0.10058777927629778, 0.26784407080729206, 0.1870113907590637, 0.2756339333309182, -0.39141768397570686, -0.167836993258318, 0.13222793260396554, 0.14611999555410624, 0.11861876317978323, -0.053096382761502574, -0.2816441823439351, 0.08541818470212406, -0.10983328399858598, -0.05253668769808679, -0.13830362930251608, -0.05935369633652013, -0.024211766050550445, -0.3747471437243552, 0.07921610626038053, 0.03672751828642755, 0.02951205250774992, -0.07002139486822075, -0.13478533450899452, 0.020498749820098024, 0.08016174739278885, 0.018314197075810154, 0.06391810429250372, 0.07578397520861974, -0.0746890513627822, -0.12067664191447969, 0.34307926646594344, -0.0781510202053549, -0.20805220254536333, 0.1358517819132399, -0.06409837673257651, -0.08269373377431827, 0.17634184058627178, 0.18170251269214627, 0.1454256519177479, -0.1314699299301318, 0.05290759916995363, -0.017629409594268633, 0.21721713393123757, 0.012054793273323568, -0.0012307666788070367, 0.11996651638202883, 0.1425730192953528, 0.15982888810465049, 0.17318477129467347, -0.09912689760776944, -0.08871576990932226, -0.22853577979800194, -0.10883764732741462, -0.24666071258613775, -0.003195703340341048, -0.13970675885572964, -0.15039643726917787, 0.36195177946496626, 0.1742155673431939, 0.1884813936619923, 0.09781206844390594, 0.36912077197098525, 0.13151688828968025, 0.026195959274753416, 0.089746444868245, 0.22785255737795398, 0.08080173902342032, 0.08503079147013867, -0.2243027128327381, 0.09264895084859996, 0.09504683245101879] |
1,802.00433 | How many randomly colored edges make a randomly colored dense graph
rainbow hamiltonian or rainbow connected? | In this paper we study the randomly edge colored graph that is obtained by
adding randomly colored random edges to an arbitrary randomly edge colored
dense graph. In particular we ask how many colors and how many random edges are
needed so that the resultant graph contains a fixed number of edge disjoint
rainbow Hamilton cycles. We also ask when in the resultant graph every pair of
vertices is connected by a rainbow path.
| math.CO | in this paper we study the randomly edge colored graph that is obtained by adding randomly colored random edges to an arbitrary randomly edge colored dense graph in particular we ask how many colors and how many random edges are needed so that the resultant graph contains a fixed number of edge disjoint rainbow hamilton cycles we also ask when in the resultant graph every pair of vertices is connected by a rainbow path | [['in', 'this', 'paper', 'we', 'study', 'the', 'randomly', 'edge', 'colored', 'graph', 'that', 'is', 'obtained', 'by', 'adding', 'randomly', 'colored', 'random', 'edges', 'to', 'an', 'arbitrary', 'randomly', 'edge', 'colored', 'dense', 'graph', 'in', 'particular', 'we', 'ask', 'how', 'many', 'colors', 'and', 'how', 'many', 'random', 'edges', 'are', 'needed', 'so', 'that', 'the', 'resultant', 'graph', 'contains', 'a', 'fixed', 'number', 'of', 'edge', 'disjoint', 'rainbow', 'hamilton', 'cycles', 'we', 'also', 'ask', 'when', 'in', 'the', 'resultant', 'graph', 'every', 'pair', 'of', 'vertices', 'is', 'connected', 'by', 'a', 'rainbow', 'path']] | [-0.19114208747506947, 0.26920353366802224, -0.054361965507268906, 0.0020404407657003284, -0.10447820775034661, -0.14320065925602574, 0.06901680943839303, 0.44842171643835466, -0.28598511802989085, -0.32529163010720463, 0.03281868748347955, -0.3513458597700338, -0.25678267533186117, -0.007498874681422839, -0.1484834656490617, 0.004190070869250072, 0.18706325108084726, 0.11263233124328828, 0.1377870214637369, -0.3008913104626904, 0.31521012345832344, -0.06340389750344125, 0.12810713284321734, 0.03020406563489421, 0.03900074731004802, 0.13481174845475, -0.038998424498729305, 0.1650772420186046, -0.16224946428465536, 0.06260862952803035, 0.2373899757685895, 0.127396132117389, 0.24510968008355513, -0.4903300374386851, -0.15727322189942808, 0.24012696109963833, 0.13698116696842416, 0.05298423585544869, -0.017839610337506275, -0.17726578762301723, 0.2001285750066509, -0.09466642574281306, -0.08223663641743965, 0.0609274221131125, 0.10115024877863156, 0.02372386829763953, -0.2418940655283026, -0.12686297067518132, 0.10370790134058208, -0.037978383920130296, 0.15308646811801638, -0.10437033461356485, -0.10375684751449404, 0.12453628821507713, -0.07865862964300087, 0.07362748178452053, 0.06329832808035929, -0.15937658725267062, -0.16318553313612938, 0.36837631002748134, -0.04188478839382328, -0.1713668623926571, 0.12257856792279494, -0.10815572248621548, -0.19464568531367224, 0.11395681182526655, 0.10957156515655082, 0.10917873931671115, -0.19072113265350266, 0.097713289743862, -0.16445873484544055, 0.07542010726457513, 0.17057666471353858, 0.06064984622738651, 0.2021501270667343, 0.08357249321793583, 0.16230930784257833, 0.23362231087191282, -0.00018785720238009016, -0.02016816532390343, -0.28941840230411775, -0.0631531426129309, -0.30861023734197823, 0.04889416595216136, -0.22240034355825236, -0.20998775799179803, 0.4486153238025066, 0.16483875746662552, 0.2621304790766255, 0.04258447892435298, 0.2821613979223814, 0.10219661059562822, -0.005428097110140968, 0.21221671589474017, 0.07350690544557732, 0.13927202932914165, -0.05753239206466321, -0.117515586958443, 0.00018057792220969458, 0.12451499835839747] |
1,802.00434 | DensePose: Dense Human Pose Estimation In The Wild | In this work, we establish dense correspondences between RGB image and a
surface-based representation of the human body, a task we refer to as dense
human pose estimation. We first gather dense correspondences for 50K persons
appearing in the COCO dataset by introducing an efficient annotation pipeline.
We then use our dataset to train CNN-based systems that deliver dense
correspondence 'in the wild', namely in the presence of background, occlusions
and scale variations. We improve our training set's effectiveness by training
an 'inpainting' network that can fill in missing groundtruth values and report
clear improvements with respect to the best results that would be achievable in
the past. We experiment with fully-convolutional networks and region-based
models and observe a superiority of the latter; we further improve accuracy
through cascading, obtaining a system that delivers highly0accurate results in
real time. Supplementary materials and videos are provided on the project page
http://densepose.org
| cs.CV | in this work we establish dense correspondences between rgb image and a surfacebased representation of the human body a task we refer to as dense human pose estimation we first gather dense correspondences for 50k persons appearing in the coco dataset by introducing an efficient annotation pipeline we then use our dataset to train cnnbased systems that deliver dense correspondence in the wild namely in the presence of background occlusions and scale variations we improve our training sets effectiveness by training an inpainting network that can fill in missing groundtruth values and report clear improvements with respect to the best results that would be achievable in the past we experiment with fullyconvolutional networks and regionbased models and observe a superiority of the latter we further improve accuracy through cascading obtaining a system that delivers highly0accurate results in real time supplementary materials and videos are provided on the project page httpdenseposeorg | [['in', 'this', 'work', 'we', 'establish', 'dense', 'correspondences', 'between', 'rgb', 'image', 'and', 'a', 'surfacebased', 'representation', 'of', 'the', 'human', 'body', 'a', 'task', 'we', 'refer', 'to', 'as', 'dense', 'human', 'pose', 'estimation', 'we', 'first', 'gather', 'dense', 'correspondences', 'for', '50k', 'persons', 'appearing', 'in', 'the', 'coco', 'dataset', 'by', 'introducing', 'an', 'efficient', 'annotation', 'pipeline', 'we', 'then', 'use', 'our', 'dataset', 'to', 'train', 'cnnbased', 'systems', 'that', 'deliver', 'dense', 'correspondence', 'in', 'the', 'wild', 'namely', 'in', 'the', 'presence', 'of', 'background', 'occlusions', 'and', 'scale', 'variations', 'we', 'improve', 'our', 'training', 'sets', 'effectiveness', 'by', 'training', 'an', 'inpainting', 'network', 'that', 'can', 'fill', 'in', 'missing', 'groundtruth', 'values', 'and', 'report', 'clear', 'improvements', 'with', 'respect', 'to', 'the', 'best', 'results', 'that', 'would', 'be', 'achievable', 'in', 'the', 'past', 'we', 'experiment', 'with', 'fullyconvolutional', 'networks', 'and', 'regionbased', 'models', 'and', 'observe', 'a', 'superiority', 'of', 'the', 'latter', 'we', 'further', 'improve', 'accuracy', 'through', 'cascading', 'obtaining', 'a', 'system', 'that', 'delivers', 'highly0accurate', 'results', 'in', 'real', 'time', 'supplementary', 'materials', 'and', 'videos', 'are', 'provided', 'on', 'the', 'project', 'page', 'httpdenseposeorg']] | [-0.05939074766954307, -0.005200859034753316, -0.05174611800317212, 0.032051624627972675, -0.08626901020446943, -0.09943476446583313, 0.03540517279809039, 0.4698295143961504, -0.21319534501664159, -0.351719546901468, 0.07571311293852616, -0.2941825640186466, -0.19739048614684254, 0.18036819454219594, -0.19816723200366707, 0.05348767740960702, 0.18840826097624125, 0.022585770365391934, -0.08957644562218087, -0.3098279304072462, 0.30737999644495445, 0.02996425032993225, 0.2956787821446621, 0.05583591002033319, 0.12294083545487877, -0.05051336851367425, -0.03600321562545424, -0.011136526985226098, -0.061237183164504695, 0.18733194619857682, 0.30446530179533265, 0.1867971925121556, 0.2542812927512804, -0.4228600515744875, -0.21118542315388047, 0.09285629629723828, 0.1416461187764071, 0.10630139349204665, -0.06429397045222514, -0.3719209461863077, 0.12249628321670399, -0.16616782479969835, -0.002307502266548171, -0.14347388071001735, -0.01143353757121273, -0.027150048516223498, -0.29942573328829697, 0.08011593314428889, 0.04674867373762174, 0.0791689838169495, -0.08635011838900077, -0.0575417005228873, 0.044651457130581745, 0.2267623476847704, 0.031437436944641475, 0.07165268294645373, 0.11671775167593984, -0.21492546862164336, -0.11824186234829344, 0.361474103923585, -0.08784469532169956, -0.1973360636243219, 0.2134037526572954, -0.06914713040522828, -0.14090121450292803, 0.11125310346628917, 0.2292742893678715, 0.10064958173284508, -0.13937771872214572, -0.00570238076741933, -0.08582962161823604, 0.1990540148611684, 0.0780863074013158, -0.017874596256611718, 0.14840690144636617, 0.25615616213228254, 0.04610662164506377, 0.15890148481294336, -0.15849685354781262, -0.022992460673825967, -0.2616769784646159, -0.133993298498083, -0.18869313600982815, -0.04564867978695327, -0.09258835155432697, -0.12531924187960858, 0.37522251183966276, 0.27987349532683053, 0.25239710939569854, 0.09565077831408612, 0.34103333141428194, -0.010580736224231235, 0.07511600401768512, 0.08113000134432474, 0.19580939828065802, -0.005547322140931076, 0.1221711109392345, -0.16342856092189714, 0.04269553904698507, 0.0458626284726543] |
1,802.00435 | Evolutionary model discovery of causal factors behind the
socio-agricultural behavior of the ancestral Pueblo | Agent-based modeling of artificial societies offers a platform to test
human-interpretable, causal explanations of human behavior that generate
society-scale phenomena. However, parameter calibration is insufficient to
conduct an adequate data-driven exploration of the importance of causal factors
that constitute agent rules, resulting in models with limited causal accuracy
and robustness. We introduce evolutionary model discovery, a framework that
combines genetic programming and random forest regression to evaluate the
importance of a set of causal factors hypothesized to affect the individual's
decision-making process. We investigated the farm plot seeking behavior of the
ancestral Pueblo of the Long House Valley simulated in the Artificial Anasazi
model our proposed framework. We evaluated the importance of causal factors not
considered in the original model that we hypothesized to have affected the
decision-making process. Contrary to the original model, where closeness was
the sole factor driving farm plot selection, selection of higher quality land
and desire for social presence are shown to be more important. In fact, model
performance is improved when agents select farm plots further away from their
failed farm plot. Farm selection strategies designed using these insights into
the socio-agricultural behavior of the ancestral Pueblo significantly improved
the model's accuracy and robustness.
| cs.MA | agentbased modeling of artificial societies offers a platform to test humaninterpretable causal explanations of human behavior that generate societyscale phenomena however parameter calibration is insufficient to conduct an adequate datadriven exploration of the importance of causal factors that constitute agent rules resulting in models with limited causal accuracy and robustness we introduce evolutionary model discovery a framework that combines genetic programming and random forest regression to evaluate the importance of a set of causal factors hypothesized to affect the individuals decisionmaking process we investigated the farm plot seeking behavior of the ancestral pueblo of the long house valley simulated in the artificial anasazi model our proposed framework we evaluated the importance of causal factors not considered in the original model that we hypothesized to have affected the decisionmaking process contrary to the original model where closeness was the sole factor driving farm plot selection selection of higher quality land and desire for social presence are shown to be more important in fact model performance is improved when agents select farm plots further away from their failed farm plot farm selection strategies designed using these insights into the socioagricultural behavior of the ancestral pueblo significantly improved the models accuracy and robustness | [['agentbased', 'modeling', 'of', 'artificial', 'societies', 'offers', 'a', 'platform', 'to', 'test', 'humaninterpretable', 'causal', 'explanations', 'of', 'human', 'behavior', 'that', 'generate', 'societyscale', 'phenomena', 'however', 'parameter', 'calibration', 'is', 'insufficient', 'to', 'conduct', 'an', 'adequate', 'datadriven', 'exploration', 'of', 'the', 'importance', 'of', 'causal', 'factors', 'that', 'constitute', 'agent', 'rules', 'resulting', 'in', 'models', 'with', 'limited', 'causal', 'accuracy', 'and', 'robustness', 'we', 'introduce', 'evolutionary', 'model', 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1,802.00436 | The effects of diffusion in hot subdwarf progenitors from the common
envelope channel | Diffusion of elements in the atmosphere and envelope of a star can
drastically alter its surface composition, leading to extreme chemical
peculiarities. We consider the case of hot subdwarfs, where surface helium
abundances range from practically zero to almost 100 percent. Since hot
subdwarfs can form via a number of different evolution channels, a key question
concerns how the formation mechanism is connected to the present surface
chemistry. A sequence of extreme horizontal branch star models was generated by
producing post-common envelope stars from red giants. Evolution was computed
with MESA from envelope ejection up to core-helium ignition. Surface abundances
were calculated at the zero-age horizontal branch for models with and without
diffusion. A number of simulations also included radiative levitation. The goal
was to study surface chemistry during evolution from cool giant to hot subdwarf
and determine when the characteristic subdwarf surface is established. Only
stars leaving the giant branch close to core-helium ignition become
hydrogen-rich subdwarfs at the zero-age horizontal branch. Diffusion, including
radiative levitation, depletes the initial surface helium in all cases. All
subdwarf models rapidly become more depleted than observations allow. Surface
abundances of other elements follow observed trends in general, but not in
detail. Additional physics is required.
| astro-ph.SR | diffusion of elements in the atmosphere and envelope of a star can drastically alter its surface composition leading to extreme chemical peculiarities we consider the case of hot subdwarfs where surface helium abundances range from practically zero to almost 100 percent since hot subdwarfs can form via a number of different evolution channels a key question concerns how the formation mechanism is connected to the present surface chemistry a sequence of extreme horizontal branch star models was generated by producing postcommon envelope stars from red giants evolution was computed with mesa from envelope ejection up to corehelium ignition surface abundances were calculated at the zeroage horizontal branch for models with and without diffusion a number of simulations also included radiative levitation the goal was to study surface chemistry during evolution from cool giant to hot subdwarf and determine when the characteristic subdwarf surface is established only stars leaving the giant branch close to corehelium ignition become hydrogenrich subdwarfs at the zeroage horizontal branch diffusion including radiative levitation depletes the initial surface helium in all cases all subdwarf models rapidly become more depleted than observations allow surface abundances of other elements follow observed trends in general but not in detail additional physics is required | [['diffusion', 'of', 'elements', 'in', 'the', 'atmosphere', 'and', 'envelope', 'of', 'a', 'star', 'can', 'drastically', 'alter', 'its', 'surface', 'composition', 'leading', 'to', 'extreme', 'chemical', 'peculiarities', 'we', 'consider', 'the', 'case', 'of', 'hot', 'subdwarfs', 'where', 'surface', 'helium', 'abundances', 'range', 'from', 'practically', 'zero', 'to', 'almost', '100', 'percent', 'since', 'hot', 'subdwarfs', 'can', 'form', 'via', 'a', 'number', 'of', 'different', 'evolution', 'channels', 'a', 'key', 'question', 'concerns', 'how', 'the', 'formation', 'mechanism', 'is', 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1,802.00437 | Report on Spring8 Test | Gamma rays in the energy range from 6 to 38 MeV were produced and sent into
two large volume LaBr3(Ce) crystals (3.5x8 inches) at the NewSUBARU facility,
with the goal of investigating the response function of the detectors. By
comparing the experimental spectra of the two detectors we deduced the
linearity of the system, separately of the two crystals and of the two PMT and
VD associated. Moreover, Monte Carlo simulations were performed in order to
reproduce the experimental spectra. The photopeak and interaction efficiencies
both in case of a collimated beam and an isotropic source were also evaluated.
| physics.ins-det | gamma rays in the energy range from 6 to 38 mev were produced and sent into two large volume labr3ce crystals 35x8 inches at the newsubaru facility with the goal of investigating the response function of the detectors by comparing the experimental spectra of the two detectors we deduced the linearity of the system separately of the two crystals and of the two pmt and vd associated moreover monte carlo simulations were performed in order to reproduce the experimental spectra the photopeak and interaction efficiencies both in case of a collimated beam and an isotropic source were also evaluated | [['gamma', 'rays', 'in', 'the', 'energy', 'range', 'from', '6', 'to', '38', 'mev', 'were', 'produced', 'and', 'sent', 'into', 'two', 'large', 'volume', 'labr3ce', 'crystals', '35x8', 'inches', 'at', 'the', 'newsubaru', 'facility', 'with', 'the', 'goal', 'of', 'investigating', 'the', 'response', 'function', 'of', 'the', 'detectors', 'by', 'comparing', 'the', 'experimental', 'spectra', 'of', 'the', 'two', 'detectors', 'we', 'deduced', 'the', 'linearity', 'of', 'the', 'system', 'separately', 'of', 'the', 'two', 'crystals', 'and', 'of', 'the', 'two', 'pmt', 'and', 'vd', 'associated', 'moreover', 'monte', 'carlo', 'simulations', 'were', 'performed', 'in', 'order', 'to', 'reproduce', 'the', 'experimental', 'spectra', 'the', 'photopeak', 'and', 'interaction', 'efficiencies', 'both', 'in', 'case', 'of', 'a', 'collimated', 'beam', 'and', 'an', 'isotropic', 'source', 'were', 'also', 'evaluated']] | [-0.06355505880462575, 0.1572135563439996, -0.04997160107762154, 0.04513165458552159, 0.04247237326326656, -0.09706670004038179, 0.001584960525494297, 0.4232461507603222, -0.2114984925684272, -0.369981922703434, 0.06453504162123047, -0.37780411650749796, 0.02234138363557428, 0.24591181450048272, 0.05794597599579363, 0.09592546548929579, 0.061920983004098644, -0.01807786011355644, -0.06872438835170196, -0.20587303138775181, 0.2660245742834154, 0.13780133630035027, 0.2762593085145844, 0.052748320707386095, 0.12972097527900978, -0.00231709075100929, -0.05268478952348232, 0.011743480776797752, -0.12682046475155012, 0.06599600886812015, 0.22649285768465216, 0.052894812951586684, 0.16103063033874698, -0.4223538356814153, -0.1720532021029111, 0.07634235913057488, 0.07335012796577256, 0.013156345836362061, -0.05484093011627734, -0.2641272727490346, 0.08789890148790971, -0.17107086320056067, -0.11363341550494792, 0.03834890420263519, -0.07744847576380992, 0.08100860768558496, -0.22201658342489783, 0.0214905640278463, -0.024462396974499548, 0.04699567563793793, -0.08509734243496644, -0.15737296087662594, -0.006223259859585336, 0.09650581185254553, 0.02698559663139702, 0.024610028963307946, 0.12953485594112046, -0.1248068294763489, -0.10108413629956087, 0.3651377016640439, -0.04621501498242688, -0.13009623499475514, 0.17790700778441162, -0.20825368803165548, -0.06885343710226673, 0.22224881080910563, 0.1591498842843029, 0.10428751539438963, -0.17502801463112463, 0.013950083969631327, 0.033850748795179686, 0.18293181980178425, 0.0886743976354447, -0.01108684704391932, 0.16249486101715235, 0.14996485195445772, -0.05170385182207944, 0.1602067957348333, -0.2041327944363952, -0.03284851234995437, -0.31013863717148804, -0.15328146328161263, -0.182651901969268, 0.023209322601490254, -0.05541452800077552, -0.07004197883628765, 0.41921981346166254, 0.0984956140591934, 0.17573615779377977, -0.007107489735211189, 0.24853455138449765, 0.05145275327186955, 0.04856235615205856, 0.0018381422613652386, 0.29908123958323685, 0.13129721312517567, 0.10593217915418196, -0.23403265198683176, 0.0068832176965566315, -0.009580485874368829] |
1,802.00438 | Combined Spatial and Temporal Blocking for High-Performance Stencil
Computation on FPGAs Using OpenCL | Recent developments in High Level Synthesis tools have attracted software
programmers to accelerate their high-performance computing applications on
FPGAs. Even though it has been shown that FPGAs can compete with GPUs in terms
of performance for stencil computation, most previous work achieve this by
avoiding spatial blocking and restricting input dimensions relative to FPGA
on-chip memory. In this work we create a stencil accelerator using Intel FPGA
SDK for OpenCL that achieves high performance without having such restrictions.
We combine spatial and temporal blocking to avoid input size restrictions, and
employ multiple FPGA-specific optimizations to tackle issues arisen from the
added design complexity. Accelerator parameter tuning is guided by our
performance model, which we also use to project performance for the upcoming
Intel Stratix 10 devices. On an Arria 10 GX 1150 device, our accelerator can
reach up to 760 and 375 GFLOP/s of compute performance, for 2D and 3D stencils,
respectively, which rivals the performance of a highly-optimized GPU
implementation. Furthermore, we estimate that the upcoming Stratix 10 devices
can achieve a performance of up to 3.5 TFLOP/s and 1.6 TFLOP/s for 2D and 3D
stencil computation, respectively.
| cs.DC cs.AR | recent developments in high level synthesis tools have attracted software programmers to accelerate their highperformance computing applications on fpgas even though it has been shown that fpgas can compete with gpus in terms of performance for stencil computation most previous work achieve this by avoiding spatial blocking and restricting input dimensions relative to fpga onchip memory in this work we create a stencil accelerator using intel fpga sdk for opencl that achieves high performance without having such restrictions we combine spatial and temporal blocking to avoid input size restrictions and employ multiple fpgaspecific optimizations to tackle issues arisen from the added design complexity accelerator parameter tuning is guided by our performance model which we also use to project performance for the upcoming intel stratix 10 devices on an arria 10 gx 1150 device our accelerator can reach up to 760 and 375 gflops of compute performance for 2d and 3d stencils respectively which rivals the performance of a highlyoptimized gpu implementation furthermore we estimate that the upcoming stratix 10 devices can achieve a performance of up to 35 tflops and 16 tflops for 2d and 3d stencil computation respectively | [['recent', 'developments', 'in', 'high', 'level', 'synthesis', 'tools', 'have', 'attracted', 'software', 'programmers', 'to', 'accelerate', 'their', 'highperformance', 'computing', 'applications', 'on', 'fpgas', 'even', 'though', 'it', 'has', 'been', 'shown', 'that', 'fpgas', 'can', 'compete', 'with', 'gpus', 'in', 'terms', 'of', 'performance', 'for', 'stencil', 'computation', 'most', 'previous', 'work', 'achieve', 'this', 'by', 'avoiding', 'spatial', 'blocking', 'and', 'restricting', 'input', 'dimensions', 'relative', 'to', 'fpga', 'onchip', 'memory', 'in', 'this', 'work', 'we', 'create', 'a', 'stencil', 'accelerator', 'using', 'intel', 'fpga', 'sdk', 'for', 'opencl', 'that', 'achieves', 'high', 'performance', 'without', 'having', 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1,802.00439 | An Improved Body Shape Definition for Acoustic Guitars | Acoustic guitar body shapes usually belong to one of a small number of
families of body shapes. However, these shapes are not standardized or even
precisely described in the literature on the subject. Rather, they are the
result of accumulated tradition and shapes vary so much that many common
components must be treated as effectively custom parts. Conventional curve fits
are not possible because the shape is not a single valued function. Numerical
descriptions such as spline fits will work, but the resulting data is too
cumbersome to be easily portable and may be dependent on choice of software.
Transforming the problem from rectangular to polar coordinates allows the use
of a closed form expression to describe a family of body shapes in a compact
and unambiguous way that is easy to implement in widely available software.
| physics.class-ph | acoustic guitar body shapes usually belong to one of a small number of families of body shapes however these shapes are not standardized or even precisely described in the literature on the subject rather they are the result of accumulated tradition and shapes vary so much that many common components must be treated as effectively custom parts conventional curve fits are not possible because the shape is not a single valued function numerical descriptions such as spline fits will work but the resulting data is too cumbersome to be easily portable and may be dependent on choice of software transforming the problem from rectangular to polar coordinates allows the use of a closed form expression to describe a family of body shapes in a compact and unambiguous way that is easy to implement in widely available software | [['acoustic', 'guitar', 'body', 'shapes', 'usually', 'belong', 'to', 'one', 'of', 'a', 'small', 'number', 'of', 'families', 'of', 'body', 'shapes', 'however', 'these', 'shapes', 'are', 'not', 'standardized', 'or', 'even', 'precisely', 'described', 'in', 'the', 'literature', 'on', 'the', 'subject', 'rather', 'they', 'are', 'the', 'result', 'of', 'accumulated', 'tradition', 'and', 'shapes', 'vary', 'so', 'much', 'that', 'many', 'common', 'components', 'must', 'be', 'treated', 'as', 'effectively', 'custom', 'parts', 'conventional', 'curve', 'fits', 'are', 'not', 'possible', 'because', 'the', 'shape', 'is', 'not', 'a', 'single', 'valued', 'function', 'numerical', 'descriptions', 'such', 'as', 'spline', 'fits', 'will', 'work', 'but', 'the', 'resulting', 'data', 'is', 'too', 'cumbersome', 'to', 'be', 'easily', 'portable', 'and', 'may', 'be', 'dependent', 'on', 'choice', 'of', 'software', 'transforming', 'the', 'problem', 'from', 'rectangular', 'to', 'polar', 'coordinates', 'allows', 'the', 'use', 'of', 'a', 'closed', 'form', 'expression', 'to', 'describe', 'a', 'family', 'of', 'body', 'shapes', 'in', 'a', 'compact', 'and', 'unambiguous', 'way', 'that', 'is', 'easy', 'to', 'implement', 'in', 'widely', 'available', 'software']] | [-0.07008906839123118, 0.08460080428014978, -0.11037200028552627, 0.07701696598830966, -0.15401789815212688, -0.1552457632734882, -0.03231218000058166, 0.4314877606493278, -0.2621473003651294, -0.32271299167216694, 0.12137465514531563, -0.23613447902809545, -0.1293124678327165, 0.2500433696121195, -0.10853182691332959, 0.042014489351452265, 0.059733549874772175, 0.03703883610475455, -0.06753770050968308, -0.20143037569457597, 0.2755341644154141, -0.0024819572347413448, 0.2667583772508142, -0.01132131585796928, 0.02811274914849332, -0.007083057031633645, -0.030344631227181992, 0.05621368103630052, -0.06912707521320562, 0.13318253480268466, 0.2838083886419063, 0.15911554745024573, 0.21161142687048137, -0.44660626712126017, -0.1867682569416794, 0.11972660405976004, 0.18358638566191288, 0.11201537333354082, -0.009021958756009049, -0.21192203515148075, 0.0437780173387494, -0.17431987728583662, -0.1609330233815296, -0.09881785331824183, 0.041307876471185334, 0.03234421296204937, -0.2371993396655541, 0.02549519614540856, 0.04857967963211075, 0.044471170358958034, -0.03746033296962847, -0.11319925411380012, -0.01542825351408037, 0.14852291483382768, 0.03014857260625891, 0.04650802545786502, 0.14348422560201834, -0.08291252294086246, -0.03188835047049462, 0.42092591448794087, 0.00653235871263229, -0.2945275669441606, 0.21514287632618126, -0.1117747778100145, -0.10966463206186347, 0.16089865247494656, 0.17989329845953841, 0.11962602367237156, -0.17900673766368932, 0.058762865830656826, -0.029049676003012753, 0.1919329206554396, 0.08035585618523514, 0.013597972633276325, 0.24767554944285947, 0.09247139107646679, 0.008685480134447367, 0.12412160198309588, -0.0414691183369362, -0.08920258183047569, -0.2893542892972592, -0.093058872136906, -0.19081174655831046, 0.017033137502059523, -0.01738527842874241, -0.23915541127160952, 0.3755075708898396, 0.08673099512965113, 0.21973531862149817, 0.024518878523763405, 0.3305613143967777, 0.06876184249867814, 0.15408243075434636, 0.04331691388081569, 0.2002333923817415, 0.044700422822191874, 0.05412454408063234, -0.10849033191929279, 0.12503557812114904, 0.0007168459134553661] |
1,802.0044 | Origin of the Local Group satellite planes | We attempt to understand the planes of satellite galaxies orbiting the Milky
Way (MW) and M31 in the context of Modified Newtonian Dynamics (MOND), which
implies a close MW-M31 flyby occurred ${\approx 8}$ Gyr ago. Using the timing
argument, we obtain MW-M31 trajectories consistent with cosmological initial
conditions and present observations. We adjust the present M31 proper motion
within its uncertainty in order to simulate a range of orbital geometries and
closest approach distances. Treating the MW and M31 as point masses, we follow
the trajectories of surrounding test particle disks, thereby mapping out the
tidal debris distribution.
Around each galaxy, the resulting tidal debris tends to cluster around a
particular orbital pole. We find some models in which these preferred spin
vectors align fairly well with those of the corresponding observed satellite
planes. The radial distributions of material in the simulated satellite planes
are similar to what we observe. Around the MW, our best-fitting model yields a
significant fraction (0.22) of counter-rotating material, perhaps explaining
why Sculptor counter-rotates within the MW satellite plane. In contrast, our
model yields no counter-rotating material around M31. This is testable with
proper motions of M31 satellites.
In our best model, the MW disk is thickened by the flyby 7.65 Gyr ago to a
root mean square height of 0.75 kpc. This is similar to the observed age and
thickness of the Galactic thick disk. Thus, the MW thick disk may have formed
together with the MW and M31 satellite planes during a past MW-M31 flyby.
| astro-ph.GA | we attempt to understand the planes of satellite galaxies orbiting the milky way mw and m31 in the context of modified newtonian dynamics mond which implies a close mwm31 flyby occurred approx 8 gyr ago using the timing argument we obtain mwm31 trajectories consistent with cosmological initial conditions and present observations we adjust the present m31 proper motion within its uncertainty in order to simulate a range of orbital geometries and closest approach distances treating the mw and m31 as point masses we follow the trajectories of surrounding test particle disks thereby mapping out the tidal debris distribution around each galaxy the resulting tidal debris tends to cluster around a particular orbital pole we find some models in which these preferred spin vectors align fairly well with those of the corresponding observed satellite planes the radial distributions of material in the simulated satellite planes are similar to what we observe around the mw our bestfitting model yields a significant fraction 022 of counterrotating material perhaps explaining why sculptor counterrotates within the mw satellite plane in contrast our model yields no counterrotating material around m31 this is testable with proper motions of m31 satellites in our best model the mw disk is thickened by the flyby 765 gyr ago to a root mean square height of 075 kpc this is similar to the observed age and thickness of the galactic thick disk thus the mw thick disk may have formed together with the mw and m31 satellite planes during a past mwm31 flyby | [['we', 'attempt', 'to', 'understand', 'the', 'planes', 'of', 'satellite', 'galaxies', 'orbiting', 'the', 'milky', 'way', 'mw', 'and', 'm31', 'in', 'the', 'context', 'of', 'modified', 'newtonian', 'dynamics', 'mond', 'which', 'implies', 'a', 'close', 'mwm31', 'flyby', 'occurred', 'approx', '8', 'gyr', 'ago', 'using', 'the', 'timing', 'argument', 'we', 'obtain', 'mwm31', 'trajectories', 'consistent', 'with', 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1,802.00441 | Compact object mergers driven by gas fallback | Recently several gravitational wave detections have shown evidence for
compact object mergers. However, the astrophysical origin of merging binaries
is not well understood. Stellar binaries are typically at much larger
separations than what is needed for the binaries to merge due to gravitational
wave emission, which leads to the so-called final AU problem. In this letter we
propose a new channel for mergers of compact object binaries which solves the
final AU problem. We examine the binary evolution following gas expansion due
to a weak failed supernova explosion, neutrino mass loss, core disturbance, or
envelope instability. In such situations the binary is possibly hardened by
ambient gas. We investigate the evolution of the binary system after a shock
has propagated by performing smoothed particle hydrodynamics simulations. We
find that significant binary hardening occurs when the gas mass bound to the
binary exceeds that of the compact objects. This mechanism represents a new
possibility for the pathway to mergers for gravitational wave events.
| astro-ph.HE astro-ph.GA | recently several gravitational wave detections have shown evidence for compact object mergers however the astrophysical origin of merging binaries is not well understood stellar binaries are typically at much larger separations than what is needed for the binaries to merge due to gravitational wave emission which leads to the socalled final au problem in this letter we propose a new channel for mergers of compact object binaries which solves the final au problem we examine the binary evolution following gas expansion due to a weak failed supernova explosion neutrino mass loss core disturbance or envelope instability in such situations the binary is possibly hardened by ambient gas we investigate the evolution of the binary system after a shock has propagated by performing smoothed particle hydrodynamics simulations we find that significant binary hardening occurs when the gas mass bound to the binary exceeds that of the compact objects this mechanism represents a new possibility for the pathway to mergers for gravitational wave events | [['recently', 'several', 'gravitational', 'wave', 'detections', 'have', 'shown', 'evidence', 'for', 'compact', 'object', 'mergers', 'however', 'the', 'astrophysical', 'origin', 'of', 'merging', 'binaries', 'is', 'not', 'well', 'understood', 'stellar', 'binaries', 'are', 'typically', 'at', 'much', 'larger', 'separations', 'than', 'what', 'is', 'needed', 'for', 'the', 'binaries', 'to', 'merge', 'due', 'to', 'gravitational', 'wave', 'emission', 'which', 'leads', 'to', 'the', 'socalled', 'final', 'au', 'problem', 'in', 'this', 'letter', 'we', 'propose', 'a', 'new', 'channel', 'for', 'mergers', 'of', 'compact', 'object', 'binaries', 'which', 'solves', 'the', 'final', 'au', 'problem', 'we', 'examine', 'the', 'binary', 'evolution', 'following', 'gas', 'expansion', 'due', 'to', 'a', 'weak', 'failed', 'supernova', 'explosion', 'neutrino', 'mass', 'loss', 'core', 'disturbance', 'or', 'envelope', 'instability', 'in', 'such', 'situations', 'the', 'binary', 'is', 'possibly', 'hardened', 'by', 'ambient', 'gas', 'we', 'investigate', 'the', 'evolution', 'of', 'the', 'binary', 'system', 'after', 'a', 'shock', 'has', 'propagated', 'by', 'performing', 'smoothed', 'particle', 'hydrodynamics', 'simulations', 'we', 'find', 'that', 'significant', 'binary', 'hardening', 'occurs', 'when', 'the', 'gas', 'mass', 'bound', 'to', 'the', 'binary', 'exceeds', 'that', 'of', 'the', 'compact', 'objects', 'this', 'mechanism', 'represents', 'a', 'new', 'possibility', 'for', 'the', 'pathway', 'to', 'mergers', 'for', 'gravitational', 'wave', 'events']] | [-0.1505521872302914, 0.1425195108713973, -0.05635102586188342, 0.1503399120992981, -0.11380652722005767, -0.07039672713496803, 0.026435050746155788, 0.3638266449403248, -0.2103418946326538, -0.30748152506917165, 0.056659690554276755, -0.2605153833872374, -0.08433988269269006, 0.2038640252197374, -0.013116499259608028, 0.038265198529525486, 0.1589184546682202, -0.03235209838308992, -0.11086984615188011, -0.23514461099388606, 0.3866445209693026, 0.12346542945971, 0.09715899233390106, -0.009941612373186666, 0.10325915002505537, -0.035917607525559024, -0.01844763270590776, -0.05023193920755552, -0.11860911299829892, 0.0022059618136098173, 0.2222038251718824, 0.15826504977626932, 0.25392184570075277, -0.39592157613578033, -0.2945322640424157, 0.08453479925469484, 0.18049062182551917, 0.15028052519644713, -0.09851601755499471, -0.24891941575117893, 0.09583671423563457, -0.27069639271976037, -0.13485520742661147, 0.0552421710482672, 0.08110172492107032, -0.00183653496823814, -0.23706241957282786, 0.14189337976391853, 0.10205529396491195, -0.06293830531649292, -0.09030605443281892, -0.053977139077844946, -0.004730444822609884, 0.03993653149195274, 0.06945886607224375, 0.0922882937837714, 0.16596886113050313, -0.127745092584878, -0.0641311993362543, 0.42174739282532236, -0.022856267548994776, -0.09981386171492898, 0.27057964209917024, -0.18777372229867328, -0.1418296687655657, 0.19793103791681338, 0.2196489080792454, 0.13009587117401814, -0.15750594157698625, -0.036921887618294104, 0.015044199464031363, 0.1979039084629075, 0.09914248559572217, 0.03265772770177092, 0.37089184709295725, 0.17196697584586218, 0.0267484989721489, 0.13771849514537113, -0.17710938363876425, -0.040663038190730194, -0.2188531337931097, -0.11415942085592111, -0.15798866575624057, 0.08145145838595151, -0.07156411947446795, -0.15201949281528174, 0.2922448292662056, 0.11660716404425508, 0.18009901448026483, 0.014105787728539449, 0.2836874733092608, 0.1063539611109544, 0.07194270245779563, 0.10665902416480498, 0.3373306447663057, 0.149307677607098, 0.07817813462181086, -0.22696349010975272, 0.09197667043334172, 0.04394196204835388] |
1,802.00442 | The Exceptional Sigma Model | We detail the construction of the exceptional sigma model, which describes a
string propagating in the "extended spacetime" of exceptional field theory.
This is to U-duality as the doubled sigma model is to T-duality. Symmetry
specifies the Weyl-invariant Lagrangian uniquely and we show how it reduces to
the correct 10-dimensional string Lagrangians. We also consider the inclusion
of a Fradkin-Tseytlin (or generalised dilaton) coupling as well as a
reformulation with dynamical tension.
| hep-th | we detail the construction of the exceptional sigma model which describes a string propagating in the extended spacetime of exceptional field theory this is to uduality as the doubled sigma model is to tduality symmetry specifies the weylinvariant lagrangian uniquely and we show how it reduces to the correct 10dimensional string lagrangians we also consider the inclusion of a fradkintseytlin or generalised dilaton coupling as well as a reformulation with dynamical tension | [['we', 'detail', 'the', 'construction', 'of', 'the', 'exceptional', 'sigma', 'model', 'which', 'describes', 'a', 'string', 'propagating', 'in', 'the', 'extended', 'spacetime', 'of', 'exceptional', 'field', 'theory', 'this', 'is', 'to', 'uduality', 'as', 'the', 'doubled', 'sigma', 'model', 'is', 'to', 'tduality', 'symmetry', 'specifies', 'the', 'weylinvariant', 'lagrangian', 'uniquely', 'and', 'we', 'show', 'how', 'it', 'reduces', 'to', 'the', 'correct', '10dimensional', 'string', 'lagrangians', 'we', 'also', 'consider', 'the', 'inclusion', 'of', 'a', 'fradkintseytlin', 'or', 'generalised', 'dilaton', 'coupling', 'as', 'well', 'as', 'a', 'reformulation', 'with', 'dynamical', 'tension']] | [-0.18300785013707355, 0.13790400713009554, -0.080190434676802, 0.12641523918945394, -0.1452125989469803, -0.16127728497667704, 0.007846584160385342, 0.2939997939522275, -0.23644999029218322, -0.29707389247293275, 0.062258696809294634, -0.24110007081698212, -0.21584231528362985, 0.06898567154550822, -0.08934918088683237, 0.0001904684274146954, -0.04172157888792248, 0.11364574595225146, -0.11534117713260154, -0.23316856484355716, 0.31403277373950306, 0.04537696224158733, 0.23954137972193873, 0.02317852820528464, 0.1498635049081511, 0.025472817923097562, -0.0013754724447305005, 0.03789909249624341, -0.12610271495779873, 0.08541405476636202, 0.19986181679673287, 0.09696198875705402, 0.08218133710195413, -0.3711817392355038, -0.23627149449142357, 0.06798795830561882, 0.16825254320994848, 0.1851269309861689, 0.03012510246157439, -0.28638373087677693, 0.03572450179490261, -0.17989777170846033, -0.21901093387148446, -0.08546253063509034, 0.01115357707183446, -0.0884029700472537, -0.21121285854476607, 0.05831102797552982, 0.06299398944055509, 0.008294326059209803, -0.06032395374495536, -0.015085530260370838, -0.08213199701276608, 0.04749627845659335, 0.12613524664225728, 0.11119298290901093, 0.11558690979048454, -0.14870622452387275, -0.09108471493366072, 0.4349462051306748, -0.11422836367112016, -0.28082167401185465, 0.11022892442997545, -0.10464134009736073, -0.18764991420579868, 0.06870377812689792, 0.0966897133233336, 0.11266341792523032, -0.13359101324911332, 0.23604408516985131, -0.07358650043089357, 0.1384631098739596, 0.0956638374288256, 0.003198786454352861, 0.23379511049845153, 0.13927065402579805, 0.03091126142276658, 0.15885710436850786, 0.003061092982534319, -0.11349429871835229, -0.44896847801283, -0.12460233593729855, -0.06569150170414811, 0.11342273423603426, -0.1146172657283589, -0.20274573686765507, 0.39938614711475867, 0.12779629033886725, 0.16425384121571873, 0.04554435473821488, 0.19820028958040187, 0.13842951264006034, 0.08736423247804244, 0.01830392198624193, 0.21650455756268153, 0.18498859502789047, 0.009300979048324129, -0.2437717231999462, -0.15196142920629224, 0.13903679547365755] |
1,802.00443 | Nodal Arc in Disordered Dirac Fermions: Connection to Non-Hermitian Band
Theory | We show that Dirac fermion systems in two dimensions generally exhibit
disorder-induced nodal arc replacing the nodal point and tilted Dirac cone,
provided that the two components of the Dirac fermion correspond to two
distinct orbitals unrelated by symmetry. This result is explicitly demonstrated
using renormalization group analysis in a disordered Dirac model that we
introduce, where the disorder potential acts differently on the two orbitals.
As we show by numerical simulations and self-consistent Born approximation
calculation, this drives the system into a new strongly disordered phase.
| cond-mat.dis-nn cond-mat.mes-hall | we show that dirac fermion systems in two dimensions generally exhibit disorderinduced nodal arc replacing the nodal point and tilted dirac cone provided that the two components of the dirac fermion correspond to two distinct orbitals unrelated by symmetry this result is explicitly demonstrated using renormalization group analysis in a disordered dirac model that we introduce where the disorder potential acts differently on the two orbitals as we show by numerical simulations and selfconsistent born approximation calculation this drives the system into a new strongly disordered phase | [['we', 'show', 'that', 'dirac', 'fermion', 'systems', 'in', 'two', 'dimensions', 'generally', 'exhibit', 'disorderinduced', 'nodal', 'arc', 'replacing', 'the', 'nodal', 'point', 'and', 'tilted', 'dirac', 'cone', 'provided', 'that', 'the', 'two', 'components', 'of', 'the', 'dirac', 'fermion', 'correspond', 'to', 'two', 'distinct', 'orbitals', 'unrelated', 'by', 'symmetry', 'this', 'result', 'is', 'explicitly', 'demonstrated', 'using', 'renormalization', 'group', 'analysis', 'in', 'a', 'disordered', 'dirac', 'model', 'that', 'we', 'introduce', 'where', 'the', 'disorder', 'potential', 'acts', 'differently', 'on', 'the', 'two', 'orbitals', 'as', 'we', 'show', 'by', 'numerical', 'simulations', 'and', 'selfconsistent', 'born', 'approximation', 'calculation', 'this', 'drives', 'the', 'system', 'into', 'a', 'new', 'strongly', 'disordered', 'phase']] | [-0.2078070385788364, 0.20972353555047993, -0.06915751155251744, 0.04668392927048664, -0.03877671293635992, -0.1804296886013157, 0.06984841964881995, 0.3612772241026035, -0.23879869130236664, -0.2271836507615858, -0.0242986129141873, -0.3328468746923167, -0.22086502077464742, 0.11013650874628675, 0.05876832242369994, -0.011151240770597995, 0.0233009892901213, -0.04463640932025838, -0.1366601514110834, -0.20593256084516046, 0.40267873601452714, -0.06524640729319005, 0.27758681564324206, 0.0494859978107029, 0.03904480983813604, 0.012781931739032868, 0.06113753563071462, 0.05900868581442013, -0.06965687521323548, 0.05494679222766567, 0.2115504669009483, -0.046896921775849726, 0.2086617641108132, -0.4391603559127142, -0.2183465306585569, 0.008153804754517201, 0.18349630539787226, 0.10420888248863149, -0.10599480936137809, -0.3097348561638902, 0.05101085896336142, -0.16157202189788222, -0.18126070283449672, -0.1075147563784287, -0.07457249726158106, -0.049007554806169425, -0.2122483035956306, 0.08836211056994467, 0.052947686771037936, 0.04135171251221635, -0.07172593829789381, -0.1090502722346727, -0.08690026875628137, 0.043604769317122795, 0.04879925288955799, -0.0002225227707504541, 0.07754218261073419, -0.06238279461689379, -0.11524311268779759, 0.438179599570817, -0.06305654175397565, -0.21297599970438014, 0.20060247374596823, -0.15936907149059162, -0.10986201809826253, 0.12217444993405678, 0.11347503457271933, 0.09253996635262651, -0.12161528404759264, 0.10748431405143534, -0.09599942206565676, 0.10992127126142993, 0.020883121099537133, -0.0021706840676394687, 0.22110484540462494, 0.11221260486448977, 0.07931861406165087, 0.11034309074025729, -0.08960517367679925, -0.15430319132069234, -0.2958652117642863, -0.1700225107521675, -0.24413341706104832, 0.05277350081007756, -0.06830294485887695, -0.2148686147926525, 0.4493861771135152, 0.17155510140047675, 0.20349302238131733, -0.03149968862330177, 0.23913213808153724, 0.1567877376834787, 0.05082043834116267, 0.06589691185167637, 0.21240842098573587, 0.10003808085624685, 0.00922356922736113, -0.2690890581994692, -0.049186059364770676, 0.11873464597303462] |
1,802.00444 | Higgscitement: Cosmological Dynamics of Fine Tuning | The Higgs potential appears to be fine-tuned, hence very sensitive to values
of other scalar fields that couple to the Higgs. We show that this feature can
lead to a new epoch in the early universe featuring violent dynamics coupling
the Higgs to a scalar modulus. The oscillating modulus drives tachyonic Higgs
particle production. We find a simple parametric understanding of when this
process can lead to rapid modulus fragmentation, resulting in gravitational
wave production. A nontrivial equation-of-state arising from the nonlinear
dynamics also affects the time elapsed from inflation to the CMB, influencing
fits of inflationary models. Supersymmetric theories automatically contain
useful ingredients for this picture.
| hep-ph astro-ph.CO | the higgs potential appears to be finetuned hence very sensitive to values of other scalar fields that couple to the higgs we show that this feature can lead to a new epoch in the early universe featuring violent dynamics coupling the higgs to a scalar modulus the oscillating modulus drives tachyonic higgs particle production we find a simple parametric understanding of when this process can lead to rapid modulus fragmentation resulting in gravitational wave production a nontrivial equationofstate arising from the nonlinear dynamics also affects the time elapsed from inflation to the cmb influencing fits of inflationary models supersymmetric theories automatically contain useful ingredients for this picture | [['the', 'higgs', 'potential', 'appears', 'to', 'be', 'finetuned', 'hence', 'very', 'sensitive', 'to', 'values', 'of', 'other', 'scalar', 'fields', 'that', 'couple', 'to', 'the', 'higgs', 'we', 'show', 'that', 'this', 'feature', 'can', 'lead', 'to', 'a', 'new', 'epoch', 'in', 'the', 'early', 'universe', 'featuring', 'violent', 'dynamics', 'coupling', 'the', 'higgs', 'to', 'a', 'scalar', 'modulus', 'the', 'oscillating', 'modulus', 'drives', 'tachyonic', 'higgs', 'particle', 'production', 'we', 'find', 'a', 'simple', 'parametric', 'understanding', 'of', 'when', 'this', 'process', 'can', 'lead', 'to', 'rapid', 'modulus', 'fragmentation', 'resulting', 'in', 'gravitational', 'wave', 'production', 'a', 'nontrivial', 'equationofstate', 'arising', 'from', 'the', 'nonlinear', 'dynamics', 'also', 'affects', 'the', 'time', 'elapsed', 'from', 'inflation', 'to', 'the', 'cmb', 'influencing', 'fits', 'of', 'inflationary', 'models', 'supersymmetric', 'theories', 'automatically', 'contain', 'useful', 'ingredients', 'for', 'this', 'picture']] | [-0.10605503668764903, 0.23319055331505348, -0.14790174217946897, 0.12608304855402652, -0.15060822576040697, -0.16003394177374997, -0.03729902696360564, 0.30487790473989235, -0.2722515298976241, -0.25806328184275984, 0.016024525381763962, -0.21148211412810694, -0.1179227385600315, 0.16913054971716357, 0.008404451500728865, 0.019533985106314742, 0.07231272132109816, 0.016556377313752597, -0.022288222945182123, -0.2633408391717647, 0.3050990376630189, 0.05569030388005983, 0.2092915064716172, 0.04828673245920582, 0.05461869357593323, -0.051425783764396875, -0.006174366456613153, -0.05368834529420204, -0.15281971743565367, 0.08273581529436545, 0.17973418721089943, 0.11305810668653696, 0.19806546533174832, -0.4081617302357036, -0.23212618191147694, 0.19943861598932297, 0.16620161071001927, 0.16649257406487922, -0.0550841351831767, -0.2526674842316152, 0.04832292774857553, -0.1741469620474588, -0.14030241624617548, -0.09313834796697185, -0.019066088950418145, -0.08480194256266702, -0.334726170212396, 0.1422639235842725, -0.043170982596973634, -0.042944370100936186, -0.05261225707689735, -0.05331862782058524, -0.07015220976051674, 0.02813513685266975, 0.17414533124913498, 0.060592770637404696, 0.2014190405520184, -0.24498390702522038, -0.0808710525439025, 0.401709313991275, -0.1525582812517603, -0.1317627460687099, 0.18274862073779663, -0.13425495420260547, -0.15198668586438366, 0.14456734183314038, 0.20328572581774582, 0.06869050719183391, -0.14076263217158097, 0.11561269508065464, 0.0875276506305335, 0.1797105162317438, 0.08917324860345259, 0.04533999229598547, 0.3363669238740874, 0.14410013252016263, 0.0074016365666534295, 0.1161855430006067, -0.021867160189235322, -0.13128745284314466, -0.3862388062978459, -0.1160985001046798, -0.07284833986538454, 0.1054001663615394, -0.1287080826364005, -0.19747463919257172, 0.43200780762899144, 0.15056325707401835, 0.22301647914399472, -0.0009083741596926039, 0.2497346789758896, 0.08830888457182864, 0.09006775564853554, 0.014493856076412251, 0.35437981462297596, 0.11616340707813468, 0.15911680827282856, -0.23201681773078184, 0.02451017852540772, 0.05445480127992961] |
1,802.00445 | A simple model for molecular hydrogen chemistry coupled to radiation
hydrodynamics | We introduce non-equilibrium molecular hydrogen chemistry into the radiation
hydrodynamics code Ramses-RT. This is an adaptive mesh refinement grid code
with radiation hydrodynamics that couples the thermal chemistry of hydrogen and
helium to moment-based radiative transfer with the Eddington tensor closure
model. The H2 physics that we include are formation on dust grains, gas phase
formation, formation by three-body collisions, collisional destruction,
photodissociation, photoionization, cosmic ray ionization, and self-shielding.
In particular, we implement the first model for H2 self-shielding that is tied
locally to moment-based radiative transfer by enhancing photodestruction. This
self-shielding from Lyman-Werner line overlap is critical to H2 formation and
gas cooling. We can now track the non-equilibrium evolution of molecular,
atomic, and ionized hydrogen species with their corresponding dissociating and
ionizing photon groups. Over a series of tests we show that our model works
well compared to specialized photodissociation region codes. We successfully
reproduce the transition depth between molecular and atomic hydrogen, molecular
cooling of the gas, and a realistic Stromgren sphere embedded in a molecular
medium. In this paper we focus on test cases to demonstrate the validity of our
model on small scales. Our ultimate goal is to implement this in large-scale
galactic simulations.
| astro-ph.GA | we introduce nonequilibrium molecular hydrogen chemistry into the radiation hydrodynamics code ramsesrt this is an adaptive mesh refinement grid code with radiation hydrodynamics that couples the thermal chemistry of hydrogen and helium to momentbased radiative transfer with the eddington tensor closure model the h2 physics that we include are formation on dust grains gas phase formation formation by threebody collisions collisional destruction photodissociation photoionization cosmic ray ionization and selfshielding in particular we implement the first model for h2 selfshielding that is tied locally to momentbased radiative transfer by enhancing photodestruction this selfshielding from lymanwerner line overlap is critical to h2 formation and gas cooling we can now track the nonequilibrium evolution of molecular atomic and ionized hydrogen species with their corresponding dissociating and ionizing photon groups over a series of tests we show that our model works well compared to specialized photodissociation region codes we successfully reproduce the transition depth between molecular and atomic hydrogen molecular cooling of the gas and a realistic stromgren sphere embedded in a molecular medium in this paper we focus on test cases to demonstrate the validity of our model on small scales our ultimate goal is to implement this in largescale galactic simulations | [['we', 'introduce', 'nonequilibrium', 'molecular', 'hydrogen', 'chemistry', 'into', 'the', 'radiation', 'hydrodynamics', 'code', 'ramsesrt', 'this', 'is', 'an', 'adaptive', 'mesh', 'refinement', 'grid', 'code', 'with', 'radiation', 'hydrodynamics', 'that', 'couples', 'the', 'thermal', 'chemistry', 'of', 'hydrogen', 'and', 'helium', 'to', 'momentbased', 'radiative', 'transfer', 'with', 'the', 'eddington', 'tensor', 'closure', 'model', 'the', 'h2', 'physics', 'that', 'we', 'include', 'are', 'formation', 'on', 'dust', 'grains', 'gas', 'phase', 'formation', 'formation', 'by', 'threebody', 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1,802.00446 | Strategies for the Follow-up of Gravitational Wave Transients with the
Cherenkov Telescope Array | The observation of the electromagnetic counterpart of gravitational-wave (GW)
transient GW170817 demonstrated the potential in extracting astrophysical
information from multimessenger discoveries. The forthcoming deployment of the
first telescopes of the Cherenkov Telescope Array (CTA) observatory will
coincide with Advanced LIGO/Virgo's next observing run, O3, enabling the
monitoring of gamma-ray emission at E > 20 GeV, and thus particle acceleration,
from GW sources. CTA will not be greatly limited by the precision of GW
localization as it will be be capable of rapidly covering the GW error region
with sufficient sensitivity. We examine the current status of GW searches and
their follow-up effort, as well as the status of CTA, in order to identify some
of the general strategies that will enhance CTA's contribution to
multimessenger discoveries.
| astro-ph.HE | the observation of the electromagnetic counterpart of gravitationalwave gw transient gw170817 demonstrated the potential in extracting astrophysical information from multimessenger discoveries the forthcoming deployment of the first telescopes of the cherenkov telescope array cta observatory will coincide with advanced ligovirgos next observing run o3 enabling the monitoring of gammaray emission at e 20 gev and thus particle acceleration from gw sources cta will not be greatly limited by the precision of gw localization as it will be be capable of rapidly covering the gw error region with sufficient sensitivity we examine the current status of gw searches and their followup effort as well as the status of cta in order to identify some of the general strategies that will enhance ctas contribution to multimessenger discoveries | [['the', 'observation', 'of', 'the', 'electromagnetic', 'counterpart', 'of', 'gravitationalwave', 'gw', 'transient', 'gw170817', 'demonstrated', 'the', 'potential', 'in', 'extracting', 'astrophysical', 'information', 'from', 'multimessenger', 'discoveries', 'the', 'forthcoming', 'deployment', 'of', 'the', 'first', 'telescopes', 'of', 'the', 'cherenkov', 'telescope', 'array', 'cta', 'observatory', 'will', 'coincide', 'with', 'advanced', 'ligovirgos', 'next', 'observing', 'run', 'o3', 'enabling', 'the', 'monitoring', 'of', 'gammaray', 'emission', 'at', 'e', '20', 'gev', 'and', 'thus', 'particle', 'acceleration', 'from', 'gw', 'sources', 'cta', 'will', 'not', 'be', 'greatly', 'limited', 'by', 'the', 'precision', 'of', 'gw', 'localization', 'as', 'it', 'will', 'be', 'be', 'capable', 'of', 'rapidly', 'covering', 'the', 'gw', 'error', 'region', 'with', 'sufficient', 'sensitivity', 'we', 'examine', 'the', 'current', 'status', 'of', 'gw', 'searches', 'and', 'their', 'followup', 'effort', 'as', 'well', 'as', 'the', 'status', 'of', 'cta', 'in', 'order', 'to', 'identify', 'some', 'of', 'the', 'general', 'strategies', 'that', 'will', 'enhance', 'ctas', 'contribution', 'to', 'multimessenger', 'discoveries']] | [-0.10511273706075736, 0.14615068615227939, -0.00754690495505929, 0.11989209951832891, -0.14928733790293336, -0.0663142306394875, 0.03651254296675324, 0.36910724100843073, -0.20252887712419032, -0.36015927118249236, 0.15145152235776185, -0.3029338272958994, -0.08472324103116989, 0.27847387740481644, 0.0354237178505864, 0.031314423449337485, 0.18554652772843838, -0.04276185436733067, -0.05257294879294932, -0.22834901741240174, 0.21079448747541754, 0.24834850507602096, 0.16866218721866608, 0.020432255994528532, 0.04149607255682349, 0.007134759049862624, -0.12540972614102067, -0.053156980380415914, -0.08331141455686884, 0.07002285492047668, 0.33777495761960746, 0.22797847041208297, 0.21603079679608345, -0.3988576056882739, -0.21136002890393138, 0.11034279806353152, 0.09870180142531171, 0.04798498250171542, -0.019814179457724096, -0.4295226330310106, 0.050238017870113255, -0.24294059398584067, -0.19923980236798525, 0.008209007382392884, -0.0029407468538265673, 0.09722434435784817, -0.1791850603967905, -0.022203798923641445, -0.05040438612923026, -0.04682356939092278, -0.083902987126261, -0.10612083500530571, 0.033583804414607586, 0.10336972736939788, 0.05367070106510073, 0.0906611653668806, 0.12820178354531528, -0.19767753742821514, -0.15090162762906403, 0.3777216273602098, -0.07726308710966259, -0.03266593923419714, 0.15493213863298297, -0.2338984798938036, -0.18958517179638149, 0.1989729213938117, 0.20135177588122316, 0.07959332952834666, -0.1867611063271761, 0.05134823823627085, 0.1246236719118897, 0.18119377493485808, 0.05808832098543644, 0.1204626130447723, 0.3361117473617196, 0.23813913304358722, 0.12957244700193404, 0.06760841829422862, -0.26923021440207956, 0.04557429421506822, -0.3461529012918472, -0.12172330912062898, -0.17208521497249604, 0.1170758358744206, -0.02936101275368128, -0.07070672411331907, 0.4186692722514272, 0.20291130422055723, 0.034313707690685986, 0.020241044066846372, 0.27423592293262483, 0.03233981102891266, 0.05191143739968538, -0.005703304665163159, 0.39406446685013363, 0.06718902143649758, 0.13785259615257384, -0.18341180284693837, 0.04961312163248658, -0.020690790191292763] |
1,802.00447 | Hidden Planetary Friends: On the Stability Of 2-Planet Systems in the
Presence of a Distant, Inclined Companion | Recent observational campaigns have shown that multi-planet systems seem to
be abundant in our Galaxy. Moreover, it seems that these systems might have
distant companions, either planets, brown-dwarfs or other stellar objects.
These companions might be inclined with respect to the inner planets, and could
potentially excite the eccentricities of the inner planets through the
Eccentric Kozai-Lidov mechanism. These eccentricity excitations could perhaps
cause the inner orbits to cross, disrupting the inner system. We study the
stability of two-planet systems in the presence of a distant, inclined, giant
planet. Specifically, we derive a stability criterion, which depends on the
companion's separation and eccentricity. We show that our analytic criterion
agrees with the results obtained from numerically integrating an ensemble of
systems. Finally, as a potential proof-of-concept, we provide a set of
predictions for the parameter space that allows the existence of planetary
companions for the Kepler-419, Kepler-56, Kepler-448, Kepler-88, Kepler-109,
and Kepler-36 systems.
| astro-ph.EP astro-ph.SR | recent observational campaigns have shown that multiplanet systems seem to be abundant in our galaxy moreover it seems that these systems might have distant companions either planets browndwarfs or other stellar objects these companions might be inclined with respect to the inner planets and could potentially excite the eccentricities of the inner planets through the eccentric kozailidov mechanism these eccentricity excitations could perhaps cause the inner orbits to cross disrupting the inner system we study the stability of twoplanet systems in the presence of a distant inclined giant planet specifically we derive a stability criterion which depends on the companions separation and eccentricity we show that our analytic criterion agrees with the results obtained from numerically integrating an ensemble of systems finally as a potential proofofconcept we provide a set of predictions for the parameter space that allows the existence of planetary companions for the kepler419 kepler56 kepler448 kepler88 kepler109 and kepler36 systems | [['recent', 'observational', 'campaigns', 'have', 'shown', 'that', 'multiplanet', 'systems', 'seem', 'to', 'be', 'abundant', 'in', 'our', 'galaxy', 'moreover', 'it', 'seems', 'that', 'these', 'systems', 'might', 'have', 'distant', 'companions', 'either', 'planets', 'browndwarfs', 'or', 'other', 'stellar', 'objects', 'these', 'companions', 'might', 'be', 'inclined', 'with', 'respect', 'to', 'the', 'inner', 'planets', 'and', 'could', 'potentially', 'excite', 'the', 'eccentricities', 'of', 'the', 'inner', 'planets', 'through', 'the', 'eccentric', 'kozailidov', 'mechanism', 'these', 'eccentricity', 'excitations', 'could', 'perhaps', 'cause', 'the', 'inner', 'orbits', 'to', 'cross', 'disrupting', 'the', 'inner', 'system', 'we', 'study', 'the', 'stability', 'of', 'twoplanet', 'systems', 'in', 'the', 'presence', 'of', 'a', 'distant', 'inclined', 'giant', 'planet', 'specifically', 'we', 'derive', 'a', 'stability', 'criterion', 'which', 'depends', 'on', 'the', 'companions', 'separation', 'and', 'eccentricity', 'we', 'show', 'that', 'our', 'analytic', 'criterion', 'agrees', 'with', 'the', 'results', 'obtained', 'from', 'numerically', 'integrating', 'an', 'ensemble', 'of', 'systems', 'finally', 'as', 'a', 'potential', 'proofofconcept', 'we', 'provide', 'a', 'set', 'of', 'predictions', 'for', 'the', 'parameter', 'space', 'that', 'allows', 'the', 'existence', 'of', 'planetary', 'companions', 'for', 'the', 'kepler419', 'kepler56', 'kepler448', 'kepler88', 'kepler109', 'and', 'kepler36', 'systems']] | [-0.19719553413100863, 0.10858155966249514, -0.12126367516963688, 0.07391310945177908, -0.1278270696542713, -0.07631208401617427, 0.04418077371052361, 0.34341987496895704, -0.17017477928716318, -0.3164844094757885, 0.0885820879646429, -0.25478942113296693, -0.14703019999972983, 0.24281733014022575, -0.0797778063388973, 0.043207322594259454, 0.18522059946283945, -0.03610479289458429, -0.02299947820492829, -0.2689532682805365, 0.32394747349660263, 0.06954222003503746, 0.00835926313645558, -0.02273416252720435, 0.014129783631212214, -0.05753412428126973, 0.035886738068479675, -0.047553250951027894, -0.17916978209912438, 0.0750847292188185, 0.23533550849560622, 0.11165272563060634, 0.2178952660171056, -0.36468222125476557, -0.20586542888168272, 0.08732579072431618, 0.20868483709405786, 0.0865022994058256, -0.05389026577880495, -0.3061348529916491, 0.11820147740993871, -0.22954352904999295, -0.2166668773345057, -0.05578760078812129, 0.06147092993722748, 0.024951338535174727, -0.2868013233378135, 0.07543768293366132, 0.1250080507347323, 0.08445490357644905, -0.14068753784946444, -0.11432505179495729, -0.07792931286130865, 0.0891833947339274, 0.04103237795736024, -0.01911068384979685, 0.18669502723604342, -0.040183666196115166, -0.0752399871133527, 0.3738869631181884, -0.055211468507606686, -0.1314240092431297, 0.3239976218068935, -0.1947093633780663, -0.12319017932996992, 0.09106955345448674, 0.21954178362229024, 0.13869365502691625, -0.14988809238366832, -0.01010541455158717, -0.03516826578508446, 0.19632922947277248, 0.07457514381073169, 0.061226944005928645, 0.41963168461529526, 0.10408489826129169, 0.08467794140640474, 0.08682762639672613, -0.1713077285317766, -0.07709485599046437, -0.16940155629043943, -0.11505055334727397, -0.11096921227008893, 0.032609870808433424, -0.09080021987356544, -0.12748159983234683, 0.30692943757621954, 0.15989268329981343, 0.2109265127250098, 0.02905881435021339, 0.30327170090256445, 0.08442477224749707, 0.09782868187677189, 0.0890093515611667, 0.3680966570626463, 0.12401052561607089, 0.03295188034508402, -0.2646022690475505, 0.1102459888962338, -0.023634450274422483] |
1,802.00448 | The Constructive Standard Model: Part I | In this paper, we construct the complete set of minimal 3-point vertices for
the massive Standard Model (SM) based purely on symmetry principles, mass
dimension and high-energy behavior and without any recourse to field theory,
gauge symmetries or Feynman rules. Because the gravitational vertices are no
more challenging than any other vertices in this constructive method, we
include them as well. We also calculate the high-energy behavior of these
vertices and compare with the well-known massless vertices, both as a check and
as a way to pin down the normalization constants. We include all these vertices
in tables as a reference for future investigations.
| hep-ph hep-th | in this paper we construct the complete set of minimal 3point vertices for the massive standard model sm based purely on symmetry principles mass dimension and highenergy behavior and without any recourse to field theory gauge symmetries or feynman rules because the gravitational vertices are no more challenging than any other vertices in this constructive method we include them as well we also calculate the highenergy behavior of these vertices and compare with the wellknown massless vertices both as a check and as a way to pin down the normalization constants we include all these vertices in tables as a reference for future investigations | [['in', 'this', 'paper', 'we', 'construct', 'the', 'complete', 'set', 'of', 'minimal', '3point', 'vertices', 'for', 'the', 'massive', 'standard', 'model', 'sm', 'based', 'purely', 'on', 'symmetry', 'principles', 'mass', 'dimension', 'and', 'highenergy', 'behavior', 'and', 'without', 'any', 'recourse', 'to', 'field', 'theory', 'gauge', 'symmetries', 'or', 'feynman', 'rules', 'because', 'the', 'gravitational', 'vertices', 'are', 'no', 'more', 'challenging', 'than', 'any', 'other', 'vertices', 'in', 'this', 'constructive', 'method', 'we', 'include', 'them', 'as', 'well', 'we', 'also', 'calculate', 'the', 'highenergy', 'behavior', 'of', 'these', 'vertices', 'and', 'compare', 'with', 'the', 'wellknown', 'massless', 'vertices', 'both', 'as', 'a', 'check', 'and', 'as', 'a', 'way', 'to', 'pin', 'down', 'the', 'normalization', 'constants', 'we', 'include', 'all', 'these', 'vertices', 'in', 'tables', 'as', 'a', 'reference', 'for', 'future', 'investigations']] | [-0.07257022039602117, 0.11992477332779135, -0.052619043549594395, 0.12098779988502009, -0.14788174483244523, -0.12695653577639648, 0.07179005201816416, 0.37321670744299457, -0.20384548593742344, -0.3179445823591847, 0.05676129795812393, -0.3198591066040815, -0.14389148992351972, 0.13148195097724405, -0.008049491954107698, 0.034334725386892945, 0.056673076532136366, 0.06609864778315219, -0.05363085418335126, -0.22914887414215349, 0.3119725360123154, -0.005230735116548693, 0.21191073800974453, 0.06563514428965461, 0.0709172346844123, 0.07492503678748527, -0.03151520284322592, 0.024307370839568857, -0.12724071621078809, 0.06732237140473583, 0.20047805739047292, 0.11071882664467782, 0.1747873462199305, -0.4561405837034377, -0.19028794409286304, 0.1570102323580963, 0.1297358784941025, 0.14791077042508943, -0.016516366368635387, -0.23573404506224996, 0.0992009352613912, -0.1390846302495517, -0.1760116112161016, -0.10532847587735607, 0.0015484590784091358, -0.03719285375420721, -0.25735929833563903, 0.02479263265419062, 0.04675086911951299, 0.05605465941166935, 0.002404482614320631, -0.15575941215054348, -0.034714926390174344, 0.12130920130584855, 0.05679704807586789, 0.04482623951760335, 0.08311497186906099, -0.15754473214977993, -0.1911219331511977, 0.43080620870638925, -0.04628321968084492, -0.20303099696488622, 0.20107082334176923, -0.1312663673217265, -0.16832988448718075, 0.05581884823130587, 0.15356065047783957, 0.1550543989661282, -0.1895865579493917, 0.11455976661482754, -0.021146687264822852, 0.12087441412194704, 0.0973389553076301, 0.0712481607591214, 0.20003677936843955, 0.10409885580884293, 0.0515456898496128, 0.1019560147816754, 0.0008788469620832565, -0.055210053647617593, -0.3833547210390232, -0.1370602488795367, -0.13834638411935885, 0.07024203453105517, -0.1323388522449442, -0.1721137752935577, 0.37314913345751566, 0.15716726958411387, 0.21883059216941966, 0.09064849439668111, 0.28697212230270874, 0.07619848869790775, 0.0970559585167883, 0.09000659715205145, 0.21511840364053988, 0.11000294385191339, 0.01868296484910668, -0.16568505082530186, -0.0338491336196267, 0.10366512638015243] |
1,802.00449 | ALMA's Polarized View of 10 Protostars in the Perseus Molecular Cloud | We present 870 $\mu$m ALMA dust polarization observations of 10 young Class
0/I protostars in the Perseus Molecular Cloud. At $\sim$ 0.35$"$ (80 au)
resolution, all of our sources show some degree of polarization, with most
(9/10) showing significantly extended emission in the polarized continuum. Each
source has incredibly intricate polarization signatures. In particular, all
three disk-candidates have polarization vectors roughly along the minor axis,
which is indicative of polarization produced by dust scattering. On $\sim$ 100
au scales, the polarization is at a relatively low level ($\lesssim 1\%$) and
is quite ordered. In sources with significant envelope emission, the envelope
is typically polarized at a much higher ($\gtrsim 5\%$) level and has a far
more disordered morphology. We compute the cumulative probability distributions
for both the small (disk-scale) and large (envelope-scale) polarization
percentage. We find that the two are intrinsically different, even after
accounting for the different detection thresholds in the high/low surface
brightness regions. We perform Kolmogorov-Smirnov and Anderson-Darling tests on
the distributions of angle offsets of the polarization from the outflow axis.
We find disk-candidate sources are different from the non-disk-candidate
sources. We conclude that the polarization on the 100 au scale is consistent
with the signature of dust scattering for disk-candidates and that the
polarization on the envelope-scale in all sources may come from another
mechanism, most likely magnetically aligned grains.
| astro-ph.SR astro-ph.GA | we present 870 mum alma dust polarization observations of 10 young class 0i protostars in the perseus molecular cloud at sim 035 80 au resolution all of our sources show some degree of polarization with most 910 showing significantly extended emission in the polarized continuum each source has incredibly intricate polarization signatures in particular all three diskcandidates have polarization vectors roughly along the minor axis which is indicative of polarization produced by dust scattering on sim 100 au scales the polarization is at a relatively low level lesssim 1 and is quite ordered in sources with significant envelope emission the envelope is typically polarized at a much higher gtrsim 5 level and has a far more disordered morphology we compute the cumulative probability distributions for both the small diskscale and large envelopescale polarization percentage we find that the two are intrinsically different even after accounting for the different detection thresholds in the highlow surface brightness regions we perform kolmogorovsmirnov and andersondarling tests on the distributions of angle offsets of the polarization from the outflow axis we find diskcandidate sources are different from the nondiskcandidate sources we conclude that the polarization on the 100 au scale is consistent with the signature of dust scattering for diskcandidates and that the polarization on the envelopescale in all sources may come from another mechanism most likely magnetically aligned grains | [['we', 'present', '870', 'mum', 'alma', 'dust', 'polarization', 'observations', 'of', '10', 'young', 'class', '0i', 'protostars', 'in', 'the', 'perseus', 'molecular', 'cloud', 'at', 'sim', '035', '80', 'au', 'resolution', 'all', 'of', 'our', 'sources', 'show', 'some', 'degree', 'of', 'polarization', 'with', 'most', '910', 'showing', 'significantly', 'extended', 'emission', 'in', 'the', 'polarized', 'continuum', 'each', 'source', 'has', 'incredibly', 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1,802.0045 | Quantum anomalies in nodal line semimetals | Topological semimetals is a new class of condensed matter systems with
nontrivial electronic structure topology. Their unusual observable properties
may often be understood in terms of quantum anomalies. In particular, Weyl and
Dirac semimetals, which have point band touching nodes, are characterized by
the chiral anomaly, which leads to the Fermi arc surface states, anomalous Hall
effect, negative longitudinal magnetoresistance and planar Hall effect. In this
paper we explore analogous phenomena in nodal line semimetals. We demonstrate
that such semimetals realize a three dimensional analog of the parity anomaly,
which is a known property of two dimensional Dirac semimetals arising, for
example, on the surface of a three dimensional topological insulator. We relate
one of the characteristic properties of nodal line semimetals, namely the
drumhead surface states, to this anomaly, and derive the field theory, which
encodes the corresponding anomalous response.
| cond-mat.mes-hall | topological semimetals is a new class of condensed matter systems with nontrivial electronic structure topology their unusual observable properties may often be understood in terms of quantum anomalies in particular weyl and dirac semimetals which have point band touching nodes are characterized by the chiral anomaly which leads to the fermi arc surface states anomalous hall effect negative longitudinal magnetoresistance and planar hall effect in this paper we explore analogous phenomena in nodal line semimetals we demonstrate that such semimetals realize a three dimensional analog of the parity anomaly which is a known property of two dimensional dirac semimetals arising for example on the surface of a three dimensional topological insulator we relate one of the characteristic properties of nodal line semimetals namely the drumhead surface states to this anomaly and derive the field theory which encodes the corresponding anomalous response | [['topological', 'semimetals', 'is', 'a', 'new', 'class', 'of', 'condensed', 'matter', 'systems', 'with', 'nontrivial', 'electronic', 'structure', 'topology', 'their', 'unusual', 'observable', 'properties', 'may', 'often', 'be', 'understood', 'in', 'terms', 'of', 'quantum', 'anomalies', 'in', 'particular', 'weyl', 'and', 'dirac', 'semimetals', 'which', 'have', 'point', 'band', 'touching', 'nodes', 'are', 'characterized', 'by', 'the', 'chiral', 'anomaly', 'which', 'leads', 'to', 'the', 'fermi', 'arc', 'surface', 'states', 'anomalous', 'hall', 'effect', 'negative', 'longitudinal', 'magnetoresistance', 'and', 'planar', 'hall', 'effect', 'in', 'this', 'paper', 'we', 'explore', 'analogous', 'phenomena', 'in', 'nodal', 'line', 'semimetals', 'we', 'demonstrate', 'that', 'such', 'semimetals', 'realize', 'a', 'three', 'dimensional', 'analog', 'of', 'the', 'parity', 'anomaly', 'which', 'is', 'a', 'known', 'property', 'of', 'two', 'dimensional', 'dirac', 'semimetals', 'arising', 'for', 'example', 'on', 'the', 'surface', 'of', 'a', 'three', 'dimensional', 'topological', 'insulator', 'we', 'relate', 'one', 'of', 'the', 'characteristic', 'properties', 'of', 'nodal', 'line', 'semimetals', 'namely', 'the', 'drumhead', 'surface', 'states', 'to', 'this', 'anomaly', 'and', 'derive', 'the', 'field', 'theory', 'which', 'encodes', 'the', 'corresponding', 'anomalous', 'response']] | [-0.25724603509504007, 0.19605333366223235, -0.05790431339810569, 0.06276879614179438, -0.13033547434387793, -0.2032597424224653, 0.0463001215112138, 0.31197607195572863, -0.2571053078071155, -0.27904173396924076, 0.019794873505209882, -0.31989547500637827, -0.26397915953334344, 0.16458667331030064, 0.0019644099446211724, 0.04862672323938987, -0.07706226489002195, 0.00385561554712501, -0.13177228251518353, -0.20855517334185858, 0.3871973372817515, -0.0576329219216111, 0.31221492108988, 0.09177811681590181, 0.045923952455797515, -0.041658885083458524, 0.0906331969065103, 0.12027654704697271, -0.10078248785812191, 0.07945333103193565, 0.2613536637699139, -0.12973996922984746, 0.12411041241098923, -0.4134210891334723, -0.24959845189005136, 0.04957969677023563, 0.10650542291568209, 0.13238362055470018, -0.07973373192279923, -0.3281873046149704, 0.04998648666003917, -0.14696412734647699, -0.16482747006989645, -0.09678869395424342, -0.017011142876626698, -0.11096612854153974, -0.1440563442268911, 0.07805487379127889, 0.06009755234385953, 0.11332440647091849, -0.06089484687656798, -0.09617587793057004, -0.08270533386855683, 0.06267849985734684, 0.06013615666525372, -0.03970018938078102, 0.09700864288916296, -0.1496376852518429, -0.21259955580739293, 0.42475760232736454, -0.04317507289138669, -0.13085931699379538, 0.18961079943931747, -0.1788577334492976, -0.13644432769229647, 0.15274472296872038, 0.17475250807544546, 0.07469605345358239, -0.09071578734087038, 0.1384968027849814, -0.08664567328011948, 0.031649629324748914, 0.015957080169600693, 0.11829622140804848, 0.33440654037242873, 0.09989335074366883, 0.08157871834478005, 0.13552596457616314, -0.1327628006556745, -0.011978733706690952, -0.295004943531033, -0.24561383545477974, -0.2392466987304865, 0.08562210303936021, -0.010011569695594285, -0.26169449400077477, 0.4800989397187182, 0.11725218130585428, 0.21414358898376426, -0.0763871404540507, 0.2050813307972453, 0.15385506051949205, 0.0765947084857402, 0.05486270952111123, 0.21378502768219998, 0.16023893593083935, 0.07905241361107505, -0.27933658147065615, 0.019857959257082104, 0.09861154260496932] |
1,802.00451 | Bose Metal as a Disruption of the Berezinskii-Kosterlitz-Thouless
Transition in 2D Superconductors | Destruction of superconductivity in thin films was thought to be a simple
instance of Berezinskii-Kosterlitz-Thouless physics in which only two phases
exist: a superconductor with algebraic long range order in which the vortices
condense and an insulator where the vortex-antivortex pairs proliferate.
However, since 1989 this view has been challenged as now a preponderance of
experiments indicate that an intervening bosonic metallic state obtains upon
the destruction of superconductivity. We review here a glassy model which is
capable of capturing both of these features. The finite resistance arises from
three features. First, the disordered insulator-superconductor transition in
the absence of fermionic degrees of freedom (Cooper pairs only), is controlled
by a diffusive fixed point\cite{CN} rather than the critical point of the clean
system. Hence, the relevant physics that generates the Bose metal should arise
from a term in the action in which different replicas are mixed. We show
explicitly how such physics arises in the phase glass. Second, in 2D (not in
3D) the phase stiffness of the glass phase vanishes explicitly as has been
shown in extensive numerical simulations\cite{ky,kosterlitz1,kosterlitz2}.
Third, bosons moving in such a glassy environment fail to localize as a result
of the false minima in the landscape. We calculate the conductivity explicitly
using Kubo response and show that it turns on as a power law and has a
vanishing Hall response as a result of underlying particle-hole symmetry. We
show that when particle-hole symmetry is broken, the Hall conductance turns on
with the same power law as does the longitudinal conductance.
| cond-mat.str-el | destruction of superconductivity in thin films was thought to be a simple instance of berezinskiikosterlitzthouless physics in which only two phases exist a superconductor with algebraic long range order in which the vortices condense and an insulator where the vortexantivortex pairs proliferate however since 1989 this view has been challenged as now a preponderance of experiments indicate that an intervening bosonic metallic state obtains upon the destruction of superconductivity we review here a glassy model which is capable of capturing both of these features the finite resistance arises from three features first the disordered insulatorsuperconductor transition in the absence of fermionic degrees of freedom cooper pairs only is controlled by a diffusive fixed pointcitecn rather than the critical point of the clean system hence the relevant physics that generates the bose metal should arise from a term in the action in which different replicas are mixed we show explicitly how such physics arises in the phase glass second in 2d not in 3d the phase stiffness of the glass phase vanishes explicitly as has been shown in extensive numerical simulationscitekykosterlitz1kosterlitz2 third bosons moving in such a glassy environment fail to localize as a result of the false minima in the landscape we calculate the conductivity explicitly using kubo response and show that it turns on as a power law and has a vanishing hall response as a result of underlying particlehole symmetry we show that when particlehole symmetry is broken the hall conductance turns on with the same power law as does the longitudinal conductance | [['destruction', 'of', 'superconductivity', 'in', 'thin', 'films', 'was', 'thought', 'to', 'be', 'a', 'simple', 'instance', 'of', 'berezinskiikosterlitzthouless', 'physics', 'in', 'which', 'only', 'two', 'phases', 'exist', 'a', 'superconductor', 'with', 'algebraic', 'long', 'range', 'order', 'in', 'which', 'the', 'vortices', 'condense', 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1,802.00452 | Observational constraints on the physical nature of submillimetre source
multiplicity: chance projections are common | Interferometric observations have demonstrated that a significant fraction of
single-dish submillimetre (submm) sources are blends of multiple submm galaxies
(SMGs), but the nature of this multiplicity, i.e. whether the galaxies are
physically associated or chance projections, has not been determined. We
performed spectroscopy of 11 SMGs in six multi-component submm sources,
obtaining spectroscopic redshifts for nine of them. For an additional two
component SMGs, we detected continuum emission but no obvious features. We
supplement our observed sources with four sources from the literature. This
sample allows us to statistically constrain the physical nature of single-dish
submm source multiplicity for the first time. In three [3/7, or 43 (-33/+39)
per cent at 95% confidence] of the single-dish sources for which the nature of
the blending is unambiguous, the components for which spectroscopic redshifts
are available are physically associated, whereas 4/7 [57 (-39/+33) per cent]
have at least one unassociated component. When components whose spectra exhibit
continuum but no features and for which the photometric redshift is
significantly different from the spectroscopic redshift of the other component
are also considered, 6/9 [67 (-37/+26) per cent] of the single-dish sources are
comprised of at least one unassociated component. The nature of the
multiplicity of one single-dish source is ambiguous. We conclude that
physically associated systems and chance projections both contribute to the
multi-component single-dish submm source population. This result contradicts
the conventional wisdom that bright submm sources are solely a result of
merger-induced starbursts, as blending of unassociated galaxies is also
important.
| astro-ph.GA astro-ph.CO | interferometric observations have demonstrated that a significant fraction of singledish submillimetre submm sources are blends of multiple submm galaxies smgs but the nature of this multiplicity ie whether the galaxies are physically associated or chance projections has not been determined we performed spectroscopy of 11 smgs in six multicomponent submm sources obtaining spectroscopic redshifts for nine of them for an additional two component smgs we detected continuum emission but no obvious features we supplement our observed sources with four sources from the literature this sample allows us to statistically constrain the physical nature of singledish submm source multiplicity for the first time in three 37 or 43 3339 per cent at 95 confidence of the singledish sources for which the nature of the blending is unambiguous the components for which spectroscopic redshifts are available are physically associated whereas 47 57 3933 per cent have at least one unassociated component when components whose spectra exhibit continuum but no features and for which the photometric redshift is significantly different from the spectroscopic redshift of the other component are also considered 69 67 3726 per cent of the singledish sources are comprised of at least one unassociated component the nature of the multiplicity of one singledish source is ambiguous we conclude that physically associated systems and chance projections both contribute to the multicomponent singledish submm source population this result contradicts the conventional wisdom that bright submm sources are solely a result of mergerinduced starbursts as blending of unassociated galaxies is also important | [['interferometric', 'observations', 'have', 'demonstrated', 'that', 'a', 'significant', 'fraction', 'of', 'singledish', 'submillimetre', 'submm', 'sources', 'are', 'blends', 'of', 'multiple', 'submm', 'galaxies', 'smgs', 'but', 'the', 'nature', 'of', 'this', 'multiplicity', 'ie', 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1,802.00453 | The disc origin of the Milky Way bulge: Dissecting the
chemo-morphological relations using N-body simulations and APOGEE | There is a long-standing debate on the origin of the metal-poor stellar
populations of the Milky Way (MW) bulge, with the two leading scenarios being
that these populations are either i) part of a classical metal-poor spheroid or
ii) the same population as the chemically defined thick disc seen at the Solar
neighbourhood. Here we test whether the latter scenario can reproduce the
observed chemical properties of the MW bulge. To do so we compare an N-body
simulation of a composite (thin+thick) stellar disc -- which evolves secularly
to form a bar and a boxy/peanut (b/p) bulge -- to data from APOGEE DR13. This
model, in which the thick disc is massive and centrally concentrated, can
reproduce the morphology of the metal-rich and metal-poor stellar populations
in the bulge, as well as the mean metallicity and [$\alpha$/Fe] maps as
obtained from the APOGEE data. It also reproduces the trends, in both longitude
and latitude, of the bulge metallicity distribution function (MDF).
Additionally, we show that the model predicts small but measurable azimuthal
metallicity variations in the inner disc due to the differential mapping of the
thin and thick disc in the bar. We therefore see that the chemo-morphological
relations of stellar populations in the MW bulge are naturally reproduced by
mapping the thin and thick discs of the inner MW into a b/p.
| astro-ph.GA | there is a longstanding debate on the origin of the metalpoor stellar populations of the milky way mw bulge with the two leading scenarios being that these populations are either i part of a classical metalpoor spheroid or ii the same population as the chemically defined thick disc seen at the solar neighbourhood here we test whether the latter scenario can reproduce the observed chemical properties of the mw bulge to do so we compare an nbody simulation of a composite thinthick stellar disc which evolves secularly to form a bar and a boxypeanut bp bulge to data from apogee dr13 this model in which the thick disc is massive and centrally concentrated can reproduce the morphology of the metalrich and metalpoor stellar populations in the bulge as well as the mean metallicity and alphafe maps as obtained from the apogee data it also reproduces the trends in both longitude and latitude of the bulge metallicity distribution function mdf additionally we show that the model predicts small but measurable azimuthal metallicity variations in the inner disc due to the differential mapping of the thin and thick disc in the bar we therefore see that the chemomorphological relations of stellar populations in the mw bulge are naturally reproduced by mapping the thin and thick discs of the inner mw into a bp | [['there', 'is', 'a', 'longstanding', 'debate', 'on', 'the', 'origin', 'of', 'the', 'metalpoor', 'stellar', 'populations', 'of', 'the', 'milky', 'way', 'mw', 'bulge', 'with', 'the', 'two', 'leading', 'scenarios', 'being', 'that', 'these', 'populations', 'are', 'either', 'i', 'part', 'of', 'a', 'classical', 'metalpoor', 'spheroid', 'or', 'ii', 'the', 'same', 'population', 'as', 'the', 'chemically', 'defined', 'thick', 'disc', 'seen', 'at', 'the', 'solar', 'neighbourhood', 'here', 'we', 'test', 'whether', 'the', 'latter', 'scenario', 'can', 'reproduce', 'the', 'observed', 'chemical', 'properties', 'of', 'the', 'mw', 'bulge', 'to', 'do', 'so', 'we', 'compare', 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1,802.00454 | Correlations of the feedback energy and BCG radio luminosity in galaxy
clusters | We study the excess entropy and the corresponding non-gravitational feedback
energy ($E_{feedback}$) in the intra-cluster medium (ICM) by considering a
sample of 38 galaxy clusters using Chandra X-ray and NRAO VLA Sky Survey
(NVSS)/Giant Metrewave Radio Telescope (GMRT) radio observations. We find
moderate correlation of the feedback energy and brightest cluster galaxy (BCG)
radio luminosity ($L_R$) with the various cluster thermal properties. We show
conclusively that the active galactic nucleus (AGN) is more effective in
transferring feedback energy to the ICM in less massive clusters. We find that
within $0.3r_{500}$, the feedback energy correlates with cluster temperature as
$E_{feedback}\propto T_{obs}^{0.98\pm0.37}$. Moreover, for radio detected BCG
sample we find that BCG radio luminosity at 1.4 GHz scales with gas mass as
$L_R\propto m_{g,obs}^{ 1.76\pm0.71}$ and with X-ray luminosity as $L_R\propto
L_{X,obs}^{0.94\pm0.35}$. Finally, we discuss the implications of our results
with regard to feedback in clusters.
| astro-ph.CO astro-ph.GA | we study the excess entropy and the corresponding nongravitational feedback energy e_feedback in the intracluster medium icm by considering a sample of 38 galaxy clusters using chandra xray and nrao vla sky survey nvssgiant metrewave radio telescope gmrt radio observations we find moderate correlation of the feedback energy and brightest cluster galaxy bcg radio luminosity l_r with the various cluster thermal properties we show conclusively that the active galactic nucleus agn is more effective in transferring feedback energy to the icm in less massive clusters we find that within 03r_500 the feedback energy correlates with cluster temperature as e_feedbackpropto t_obs098pm037 moreover for radio detected bcg sample we find that bcg radio luminosity at 14 ghz scales with gas mass as l_rpropto m_gobs 176pm071 and with xray luminosity as l_rpropto l_xobs094pm035 finally we discuss the implications of our results with regard to feedback in clusters | [['we', 'study', 'the', 'excess', 'entropy', 'and', 'the', 'corresponding', 'nongravitational', 'feedback', 'energy', 'e_feedback', 'in', 'the', 'intracluster', 'medium', 'icm', 'by', 'considering', 'a', 'sample', 'of', '38', 'galaxy', 'clusters', 'using', 'chandra', 'xray', 'and', 'nrao', 'vla', 'sky', 'survey', 'nvssgiant', 'metrewave', 'radio', 'telescope', 'gmrt', 'radio', 'observations', 'we', 'find', 'moderate', 'correlation', 'of', 'the', 'feedback', 'energy', 'and', 'brightest', 'cluster', 'galaxy', 'bcg', 'radio', 'luminosity', 'l_r', 'with', 'the', 'various', 'cluster', 'thermal', 'properties', 'we', 'show', 'conclusively', 'that', 'the', 'active', 'galactic', 'nucleus', 'agn', 'is', 'more', 'effective', 'in', 'transferring', 'feedback', 'energy', 'to', 'the', 'icm', 'in', 'less', 'massive', 'clusters', 'we', 'find', 'that', 'within', '03r_500', 'the', 'feedback', 'energy', 'correlates', 'with', 'cluster', 'temperature', 'as', 'e_feedbackpropto', 't_obs098pm037', 'moreover', 'for', 'radio', 'detected', 'bcg', 'sample', 'we', 'find', 'that', 'bcg', 'radio', 'luminosity', 'at', '14', 'ghz', 'scales', 'with', 'gas', 'mass', 'as', 'l_rpropto', 'm_gobs', '176pm071', 'and', 'with', 'xray', 'luminosity', 'as', 'l_rpropto', 'l_xobs094pm035', 'finally', 'we', 'discuss', 'the', 'implications', 'of', 'our', 'results', 'with', 'regard', 'to', 'feedback', 'in', 'clusters']] | [-0.04137245634949705, 0.10915558654594025, -0.030841326419209694, 0.13212507720917707, -0.14275220495200017, -0.03218938230815595, 0.08251812574147743, 0.5165758424975576, -0.13461155777781808, -0.379380440624961, 0.06531976296967507, -0.3346615355720159, -0.015908015382061474, 0.20634058504671293, 0.06340559868798014, -0.08023605350384584, 0.05156639703365899, -0.11878053878134892, -0.02973977599911609, -0.2538509128384129, 0.3101841055169484, 0.17796718490303215, 0.18697642717836765, -0.013076531849442522, 0.10677030950064098, -0.09658325488855858, -0.12606400249349156, 0.005011890106282136, -0.09794890660325016, -0.01925734661725166, 0.2815369596878189, 0.12419387751197727, 0.22613617970886893, -0.3300775079880663, -0.19833653582341587, 0.08488730701828634, 0.19778972453043464, 0.008957129950723508, -0.09644292963443096, -0.2492043979901032, 0.08868416278779398, -0.2742231554372141, -0.20571041556183983, 0.1317130699821741, 0.018042756271732116, 0.07391245661510368, -0.17013175510393497, 0.21803902425989338, -0.05918494165011675, 0.042644281701667466, -0.19247193783385694, -0.07868899706322836, -0.04836870488255237, 0.059021374486033285, -0.028317480886790113, 0.0801252334575801, 0.2574304280068426, -0.15184962552339926, -0.05037708472363637, 0.3343552543108698, -0.009457470837684797, 0.09249237389133795, 0.23639889506038522, -0.2420856034050502, -0.24873545020138912, 0.07338943952154096, 0.18407413426677893, -0.008325898156494555, -0.1739334730281882, 0.004037804609286959, -0.05105778632386431, 0.28447563871979226, 0.014995690742779497, 0.11940477033214555, 0.28145449488920016, 0.09263883009858864, 0.09262484183575767, 0.19707974085047242, -0.27858532871031305, 0.032442935450124916, -0.2237558778083074, -0.02845864953476609, -0.14151025448252794, 0.10952863994693506, -0.1504500980865394, -0.06404832549338793, 0.30609069183387244, 0.07312336055575495, 0.19130036204434714, 0.11597007192181845, 0.3243275430787654, 0.06150555036397801, 0.10786031488070849, 0.19276795598821048, 0.3333800378031213, 0.2124143861264779, 0.10415499275006408, -0.3016005995628988, -0.030269461962645943, -0.035518569312649816] |
1,802.00455 | Mapping UV Properties Throughout the Cosmic Horseshoe: Lessons from
VLT-MUSE | We present the first spatially-resolved rest-frame UV study of the
gravitationally lensed galaxy, the 'Cosmic Horseshoe' (J1148+1930) at z=2.38.
Our gravitational lens model shows that the system is made up of four
star-forming regions, each ~4-8 kpc^2 in size, from which we extract four
spatially exclusive regional spectra. We study the interstellar and wind
absorption lines, along with CIII] doublet emission lines, in each region to
investigate any variation in emission/absorption line properties. The mapped
CIII] emission shows distinct kinematical structure, with velocity offsets of
~+/-50 km/s between regions suggestive of a merging system, and a variation in
equivalent width that indicates a change in ionisation parameter and/or
metallicity between the regions. Absorption line velocities reveal a range of
outflow strengths, with gas outflowing between -200<v(km/s)<-50 relative to the
systemic velocity of that region. Interestingly, the strongest gas outflow
appears to emanate from the most diffuse star-forming region. The
star-formation rates remain relatively constant (~8-16 M_sol/yr), mostly due to
large uncertainties in reddening estimates. As such, the outflows appear to be
'global' rather than 'locally' sourced. We measure electron densities with a
range of log(Ne)=3.92-4.36 cm^-3, and point out that such high densities may be
common when measured using the CIII] doublet due to its large critical density.
Overall, our observations demonstrate that while it is possible to trace
variations in large scale gas kinematics, detecting inhomogeneities in physical
gas properties and their effects on the outflowing gas may be more difficult.
This study provides important lessons for the spatially-resolved rest-frame UV
studies expected with future observatories, such as JWST.
| astro-ph.GA | we present the first spatiallyresolved restframe uv study of the gravitationally lensed galaxy the cosmic horseshoe j11481930 at z238 our gravitational lens model shows that the system is made up of four starforming regions each 48 kpc2 in size from which we extract four spatially exclusive regional spectra we study the interstellar and wind absorption lines along with ciii doublet emission lines in each region to investigate any variation in emissionabsorption line properties the mapped ciii emission shows distinct kinematical structure with velocity offsets of 50 kms between regions suggestive of a merging system and a variation in equivalent width that indicates a change in ionisation parameter andor metallicity between the regions absorption line velocities reveal a range of outflow strengths with gas outflowing between 200vkms50 relative to the systemic velocity of that region interestingly the strongest gas outflow appears to emanate from the most diffuse starforming region the starformation rates remain relatively constant 816 m_solyr mostly due to large uncertainties in reddening estimates as such the outflows appear to be global rather than locally sourced we measure electron densities with a range of logne392436 cm3 and point out that such high densities may be common when measured using the ciii doublet due to its large critical density overall our observations demonstrate that while it is possible to trace variations in large scale gas kinematics detecting inhomogeneities in physical gas properties and their effects on the outflowing gas may be more difficult this study provides important lessons for the spatiallyresolved restframe uv studies expected with future observatories such as jwst | [['we', 'present', 'the', 'first', 'spatiallyresolved', 'restframe', 'uv', 'study', 'of', 'the', 'gravitationally', 'lensed', 'galaxy', 'the', 'cosmic', 'horseshoe', 'j11481930', 'at', 'z238', 'our', 'gravitational', 'lens', 'model', 'shows', 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1,802.00456 | Next-to-leading-logarithmic power corrections for $N$-jettiness
subtraction in color-singlet production | We present a detailed derivation of the power corrections to the
factorization theorem for the 0-jettiness event shape variable $\mathcal{T}$.
Our calculation is performed directly in QCD without using the formalism of
effective field theory. We analytically calculate the next-to-leading
logarithmic power corrections for small $\mathcal{T}$ at next-to-leading order
in the strong coupling constant, extending previous computations which obtained
only the leading-logarithmic power corrections. We address a discrepancy in the
literature between results for the leading-logarithmic power corrections to a
particular definition of 0-jettiness. We present a numerical study of the power
corrections in the context of their application to the $N$-jettiness
subtraction method for higher-order calculations, using gluon-fusion Higgs
production as an example. The inclusion of the next-to-leading-logarithmic
power corrections further improves the numerical efficiency of the approach
beyond the improvement obtained from the leading-logarithmic power corrections.
| hep-ph | we present a detailed derivation of the power corrections to the factorization theorem for the 0jettiness event shape variable mathcalt our calculation is performed directly in qcd without using the formalism of effective field theory we analytically calculate the nexttoleading logarithmic power corrections for small mathcalt at nexttoleading order in the strong coupling constant extending previous computations which obtained only the leadinglogarithmic power corrections we address a discrepancy in the literature between results for the leadinglogarithmic power corrections to a particular definition of 0jettiness we present a numerical study of the power corrections in the context of their application to the njettiness subtraction method for higherorder calculations using gluonfusion higgs production as an example the inclusion of the nexttoleadinglogarithmic power corrections further improves the numerical efficiency of the approach beyond the improvement obtained from the leadinglogarithmic power corrections | [['we', 'present', 'a', 'detailed', 'derivation', 'of', 'the', 'power', 'corrections', 'to', 'the', 'factorization', 'theorem', 'for', 'the', '0jettiness', 'event', 'shape', 'variable', 'mathcalt', 'our', 'calculation', 'is', 'performed', 'directly', 'in', 'qcd', 'without', 'using', 'the', 'formalism', 'of', 'effective', 'field', 'theory', 'we', 'analytically', 'calculate', 'the', 'nexttoleading', 'logarithmic', 'power', 'corrections', 'for', 'small', 'mathcalt', 'at', 'nexttoleading', 'order', 'in', 'the', 'strong', 'coupling', 'constant', 'extending', 'previous', 'computations', 'which', 'obtained', 'only', 'the', 'leadinglogarithmic', 'power', 'corrections', 'we', 'address', 'a', 'discrepancy', 'in', 'the', 'literature', 'between', 'results', 'for', 'the', 'leadinglogarithmic', 'power', 'corrections', 'to', 'a', 'particular', 'definition', 'of', '0jettiness', 'we', 'present', 'a', 'numerical', 'study', 'of', 'the', 'power', 'corrections', 'in', 'the', 'context', 'of', 'their', 'application', 'to', 'the', 'njettiness', 'subtraction', 'method', 'for', 'higherorder', 'calculations', 'using', 'gluonfusion', 'higgs', 'production', 'as', 'an', 'example', 'the', 'inclusion', 'of', 'the', 'nexttoleadinglogarithmic', 'power', 'corrections', 'further', 'improves', 'the', 'numerical', 'efficiency', 'of', 'the', 'approach', 'beyond', 'the', 'improvement', 'obtained', 'from', 'the', 'leadinglogarithmic', 'power', 'corrections']] | [-0.08697458606490029, 0.01739286323024409, -0.12015767809529991, 0.11096842534101123, -0.036998054363589356, -0.04414685755509181, 0.052493968788927516, 0.3032150035859018, -0.20906294036346176, -0.2855499816478055, 0.0305183753033803, -0.3159517335015403, -0.06640134998799666, 0.18901947836317393, 0.019067960474100233, 0.09411597447604805, 0.04295304680135155, -0.006159260052431753, -0.11109930716212028, -0.21621151055222837, 0.311248890233928, 0.13400586450850402, 0.21528395026436317, 0.1549967246879216, 0.05003409175813009, 0.021953328829798578, -0.1055406031812089, 0.0310805876152185, -0.15884629217232915, 0.11404859732188609, 0.19674770565757502, 0.021511254764661408, 0.21331140719711836, -0.3763741916547482, -0.1631021286981801, 0.0748326559888496, 0.11272651873751664, 0.1462781428934355, -0.03092902597795794, -0.2082883098932064, 0.11578074248045332, -0.2843763080486299, -0.15244643014950165, -0.13835171948902417, -0.04104778631775896, -0.038729807511275714, -0.3296205975736181, 0.06949560715293046, 0.047290663049299866, 0.0019744798469680286, 0.01972640545168163, -0.11873096084235694, 0.0024615528392672972, 0.11905988813647865, 0.06861210399203654, 0.025352469259076683, 0.12237340523658888, -0.19150611325976966, -0.17355241902860935, 0.4051135575965695, -0.10076164059843733, -0.1657261339309828, 0.030604816507548094, -0.17605906791742082, -0.17402680999046002, 0.15627597611181546, 0.19099416927117313, 0.15619049067743987, -0.12347283392496732, 0.16648594843750092, 0.05019888702941978, 0.16043245398095282, 0.056486442175599325, 0.038973708367110164, 0.10998605741896546, 0.12579403586678908, -0.04299993273140727, 0.13709711264717675, -0.0727935031839255, -0.1134102216962239, -0.4421678578845509, -0.08363020763565568, -0.12594432106740988, 0.03775502513230279, -0.16620045411737933, -0.13021656635143133, 0.3770391738710358, 0.18462968697649954, 0.17942743338610762, 0.1298231718246825, 0.39711642359801824, 0.20085527186713897, 0.08072318593073852, 0.04686720918634556, 0.2916798084684094, 0.15774668716029197, 0.09488048624463272, -0.2830026158843648, -0.022260349631930392, 0.128839851103966] |
1,802.00457 | $^{31}$P NMR study of discrete time-crystalline signatures in an ordered
crystal of ammonium dihydrogen phosphate | The rich dynamics and phase structure of driven systems includes the recently
described phenomenon of the "discrete time crystal" (DTC), a robust phase which
spontaneously breaks the discrete time translation symmetry of its driving
Hamiltonian. Experiments in trapped ions and diamond nitrogen vacancy centers
have recently shown evidence for this DTC order. Here, we show nuclear magnetic
resonance (NMR) data of DTC behavior in a third, strikingly different system: a
highly ordered spatial crystal in three dimensions. We devise a DTC echo
experiment to probe the coherence of the driven system. We examine potential
decay mechanisms for the DTC oscillations, and demonstrate the important effect
of the internal Hamiltonian during nonzero duration pulses.
| quant-ph cond-mat.stat-mech cond-mat.str-el | the rich dynamics and phase structure of driven systems includes the recently described phenomenon of the discrete time crystal dtc a robust phase which spontaneously breaks the discrete time translation symmetry of its driving hamiltonian experiments in trapped ions and diamond nitrogen vacancy centers have recently shown evidence for this dtc order here we show nuclear magnetic resonance nmr data of dtc behavior in a third strikingly different system a highly ordered spatial crystal in three dimensions we devise a dtc echo experiment to probe the coherence of the driven system we examine potential decay mechanisms for the dtc oscillations and demonstrate the important effect of the internal hamiltonian during nonzero duration pulses | [['the', 'rich', 'dynamics', 'and', 'phase', 'structure', 'of', 'driven', 'systems', 'includes', 'the', 'recently', 'described', 'phenomenon', 'of', 'the', 'discrete', 'time', 'crystal', 'dtc', 'a', 'robust', 'phase', 'which', 'spontaneously', 'breaks', 'the', 'discrete', 'time', 'translation', 'symmetry', 'of', 'its', 'driving', 'hamiltonian', 'experiments', 'in', 'trapped', 'ions', 'and', 'diamond', 'nitrogen', 'vacancy', 'centers', 'have', 'recently', 'shown', 'evidence', 'for', 'this', 'dtc', 'order', 'here', 'we', 'show', 'nuclear', 'magnetic', 'resonance', 'nmr', 'data', 'of', 'dtc', 'behavior', 'in', 'a', 'third', 'strikingly', 'different', 'system', 'a', 'highly', 'ordered', 'spatial', 'crystal', 'in', 'three', 'dimensions', 'we', 'devise', 'a', 'dtc', 'echo', 'experiment', 'to', 'probe', 'the', 'coherence', 'of', 'the', 'driven', 'system', 'we', 'examine', 'potential', 'decay', 'mechanisms', 'for', 'the', 'dtc', 'oscillations', 'and', 'demonstrate', 'the', 'important', 'effect', 'of', 'the', 'internal', 'hamiltonian', 'during', 'nonzero', 'duration', 'pulses']] | [-0.17082729046871736, 0.22452924406337263, -0.09054479658999275, 0.04448421358283346, -0.012331590006968617, -0.14211228865289452, 0.05136035582199033, 0.40622519170947835, -0.2859129270752974, -0.2660000021569431, 0.06844086743029971, -0.24061436552257665, -0.13193978197806705, 0.1593882582372928, 0.03990371133287363, 0.056774399583269144, 0.007625001274560273, 0.018438323020761982, -0.042938977856996706, -0.17723455851839906, 0.24916689735796071, 0.036116990602041585, 0.35114160055434745, 0.012867375136872309, 0.13380904579061223, -0.014893469286349034, 0.055105428030071534, -0.018132000106625853, -0.10926653350720417, 0.044786236747538885, 0.19398365733914275, 0.0035172893132074876, 0.21534178649339067, -0.47785654354148205, -0.23154569279600298, 0.10797442093623423, 0.15141020521554535, 0.18632912606441837, -0.13948822831652596, -0.32424276990123685, -0.00706103139771231, -0.16204949521121725, -0.1537515732698736, -0.128592428664751, 0.026873507767717922, -0.005601912289775446, -0.24665130271660823, 0.0946155660456063, 0.09766061396741893, 0.08879772314917198, -0.10372597908918474, -0.018265730437649563, -0.018634033274004418, 0.06828666717201405, 0.015776311813861923, 0.005823297788743425, 0.15524111361865087, -0.07092113233072501, -0.16876912915634107, 0.3655398345461725, -0.05137445427069391, -0.09468753587295388, 0.17129942206088947, -0.1943995466381641, -0.14316674569967838, 0.15251534288765584, 0.16556292852547547, 0.10579163394868374, -0.1435147635643865, 0.04394104008505428, 0.020186491866917473, 0.22530612141817016, 0.03041387287347652, 0.0677377784056012, 0.1867118714855308, 0.2324519165239371, 0.03788036474982787, 0.17703002368602738, -0.11319922440504013, -0.14376954084872146, -0.20123302407018775, -0.1335717024800854, -0.17181889439182998, 0.01832098168510515, -0.04460410527697974, -0.12360348512776057, 0.4350144635655184, 0.12029824972119743, 0.1616250300528564, -0.07799855267023256, 0.2629382188506095, 0.10183640139638982, 0.07036305753415269, 0.004813073192665403, 0.2459985074644859, 0.1458510044700491, 0.13122933890785923, -0.33002860676826895, 0.05283753370322221, 0.006210760934591557] |
1,802.00458 | The Deflector Selector: A Machine Learning Framework for Prioritizing
Hazardous Object Deflection Technology Development | Several technologies have been proposed for deflecting a hazardous Solar
System object on a trajectory that would otherwise impact the Earth. The
effectiveness of each technology depends on several characteristics of the
given object, including its orbit and size. The distribution of these
parameters in the likely population of Earth-impacting objects can thus
determine which of the technologies are most likely to be useful in preventing
a collision with the Earth. None of the proposed deflection technologies has
been developed and fully tested in space. Developing every proposed technology
is currently prohibitively expensive, so determining now which technologies are
most likely to be effective would allow us to prioritize a subset of proposed
deflection technologies for funding and development. We present a new model,
the Deflector Selector, that takes as its input the characteristics of a
hazardous object or population of such objects and predicts which technology
would be able to perform a successful deflection. The model consists of a
machine-learning algorithm trained on data produced by N-body integrations
simulating the deflections. We describe the model and present the results of
tests of the effectiveness of nuclear explosives, kinetic impactors, and
gravity tractors on three simulated populations of hazardous objects.
| astro-ph.EP | several technologies have been proposed for deflecting a hazardous solar system object on a trajectory that would otherwise impact the earth the effectiveness of each technology depends on several characteristics of the given object including its orbit and size the distribution of these parameters in the likely population of earthimpacting objects can thus determine which of the technologies are most likely to be useful in preventing a collision with the earth none of the proposed deflection technologies has been developed and fully tested in space developing every proposed technology is currently prohibitively expensive so determining now which technologies are most likely to be effective would allow us to prioritize a subset of proposed deflection technologies for funding and development we present a new model the deflector selector that takes as its input the characteristics of a hazardous object or population of such objects and predicts which technology would be able to perform a successful deflection the model consists of a machinelearning algorithm trained on data produced by nbody integrations simulating the deflections we describe the model and present the results of tests of the effectiveness of nuclear explosives kinetic impactors and gravity tractors on three simulated populations of hazardous objects | [['several', 'technologies', 'have', 'been', 'proposed', 'for', 'deflecting', 'a', 'hazardous', 'solar', 'system', 'object', 'on', 'a', 'trajectory', 'that', 'would', 'otherwise', 'impact', 'the', 'earth', 'the', 'effectiveness', 'of', 'each', 'technology', 'depends', 'on', 'several', 'characteristics', 'of', 'the', 'given', 'object', 'including', 'its', 'orbit', 'and', 'size', 'the', 'distribution', 'of', 'these', 'parameters', 'in', 'the', 'likely', 'population', 'of', 'earthimpacting', 'objects', 'can', 'thus', 'determine', 'which', 'of', 'the', 'technologies', 'are', 'most', 'likely', 'to', 'be', 'useful', 'in', 'preventing', 'a', 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'the', 'deflections', 'we', 'describe', 'the', 'model', 'and', 'present', 'the', 'results', 'of', 'tests', 'of', 'the', 'effectiveness', 'of', 'nuclear', 'explosives', 'kinetic', 'impactors', 'and', 'gravity', 'tractors', 'on', 'three', 'simulated', 'populations', 'of', 'hazardous', 'objects']] | [-0.08960323963314294, 0.08721120480040553, -0.09937889898195863, 0.054661224843002856, -0.08804100737441331, -0.11542717659147456, 0.005868003845680505, 0.3576245031133294, -0.19588563195080497, -0.36109646723605693, 0.11666240490798373, -0.2510499409167096, -0.12464339368627407, 0.256431931310799, -0.08847639912972227, 0.07434226429148111, 0.10735780206754499, 0.01171448411187157, -0.0021943975868634878, -0.2429515200678725, 0.2730079324438702, 0.10294131857808679, 0.238777029926423, 0.015514537920244037, 0.13245416288322304, -0.030317708542570473, -0.02321742424275726, 0.009471405134390806, -0.07310176414008311, 0.1282307033520192, 0.24195486253360288, 0.19335677851457148, 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1,802.00459 | Nearly Optimal Dynamic $k$-Means Clustering for High-Dimensional Data | We consider the $k$-means clustering problem in the dynamic streaming
setting, where points from a discrete Euclidean space $\{1, 2, \ldots,
\Delta\}^d$ can be dynamically inserted to or deleted from the dataset. For
this problem, we provide a one-pass coreset construction algorithm using space
$\tilde{O}(k\cdot \mathrm{poly}(d, \log\Delta))$, where $k$ is the target
number of centers. To our knowledge, this is the first dynamic geometric data
stream algorithm for $k$-means using space polynomial in dimension and nearly
optimal (linear) in $k$.
| cs.DS cs.LG stat.ML | we consider the kmeans clustering problem in the dynamic streaming setting where points from a discrete euclidean space 1 2 ldots deltad can be dynamically inserted to or deleted from the dataset for this problem we provide a onepass coreset construction algorithm using space tildeokcdot mathrmpolyd logdelta where k is the target number of centers to our knowledge this is the first dynamic geometric data stream algorithm for kmeans using space polynomial in dimension and nearly optimal linear in k | [['we', 'consider', 'the', 'kmeans', 'clustering', 'problem', 'in', 'the', 'dynamic', 'streaming', 'setting', 'where', 'points', 'from', 'a', 'discrete', 'euclidean', 'space', '1', '2', 'ldots', 'deltad', 'can', 'be', 'dynamically', 'inserted', 'to', 'or', 'deleted', 'from', 'the', 'dataset', 'for', 'this', 'problem', 'we', 'provide', 'a', 'onepass', 'coreset', 'construction', 'algorithm', 'using', 'space', 'tildeokcdot', 'mathrmpolyd', 'logdelta', 'where', 'k', 'is', 'the', 'target', 'number', 'of', 'centers', 'to', 'our', 'knowledge', 'this', 'is', 'the', 'first', 'dynamic', 'geometric', 'data', 'stream', 'algorithm', 'for', 'kmeans', 'using', 'space', 'polynomial', 'in', 'dimension', 'and', 'nearly', 'optimal', 'linear', 'in', 'k']] | [-0.10756736167093527, 0.06079380185920981, -0.09064133381588926, 0.03689217871597296, -0.09047594978297248, -0.12519416655119084, 0.06903770469317708, 0.380771970965817, -0.36884142122455416, -0.31677883471468393, 0.10770899576246974, -0.2612250632240991, -0.12817797502443853, 0.14412779655437208, -0.08813809504425979, 0.06576747125341804, 0.036162140620047155, 0.07440395841612245, -0.015138083491238612, -0.3268984716084986, 0.31686849309768106, -0.01815985380730863, 0.2183703155245019, -0.05962919464328951, 0.10396635641573775, 0.047718816395566056, 0.0036630777854330934, 0.02764483285910167, -0.12943559179459757, 0.10771998909856134, 0.3004328479483441, 0.2068565141297641, 0.2862627303487138, -0.3667094725054465, -0.15758053327968072, 0.16734203774057613, 0.18925473696398962, 0.09383340960344937, -0.02621883893668463, -0.25372764624395894, 0.132847035542437, -0.07994942907008189, -0.04905796684088964, -0.044058139913397125, 0.017432833019691178, -0.055143023021754965, -0.3469734108429166, 0.032513350584320255, 0.049289767288520366, 0.033582030312169955, -0.0869017146657445, -0.13564222361420905, 0.06479178326899963, 0.08525572891960133, -0.040930223051470385, 0.12557942931292743, 0.06316901524728046, -0.04250418673611329, -0.1344870980239556, 0.3950259804525236, -0.0382397444447196, -0.2153578152293575, 0.09425773850017333, -0.08322406813643779, -0.15613307691874762, 0.13031849025784037, 0.232650928499908, 0.15475132639366615, -0.09412283074299369, 0.14427954994091952, -0.10646818013555265, 0.1568475145304316, 0.08609170998340543, -0.031497889210151724, 0.07583394764533526, 0.1974230563103021, 0.16090795519184084, 0.18045019920726743, -0.07579548864572344, -0.056004602061230924, -0.27858168747323225, -0.12160203943384186, -0.255037058899297, -0.011638828117070319, -0.20117458745323658, -0.13973934894215456, 0.32583810571180305, 0.12330955351243102, 0.27715641835445093, 0.10608845855396011, 0.3339460337463814, 0.030282390794622464, 0.026023389347180535, 0.19156063471838267, 0.09711083159133603, 0.01627494966540533, 0.07852640932520168, -0.15178461347506206, 0.010097913721449603, 0.12904018669424555] |
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