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c5482e5967824db8f0902c7d41109e277271abb3
subsection
7
41
Our approach: Radiative neutrino scattering on electrons
In the present paper we consider a different realization of the idea of employing the momentum transfer to the target rather than the recoil energy of the target particle – radiative neutrino scattering on atomic electrons or on free electrons in a conductor:\nu +e\rightarrow \nu +e+\gamma \,.In this case the emitted p...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.013518133200705051, -0.004203437827527523, -0.03326132148504257, -0.004836623091250658, -0.020795954391360283, -0.02757027931511402, -0.005919904913753271, 0.03515325114130974, 0.015242229215800762, -0.003831536276265979, 0.011969498358666897, 0.01475398987531662, -0.02010936848819256, ...
7d678320f5da3e351a1dc48683d4ee4d870f2b44
subsection
8
41
Previous studies
The radiative neutrino scattering on electrons (REF ) was first considered by Lee and Sirlin back in 1964  and since then has been studied by many authors (see, e.g., , , , , , , ). To the best of our knowledge, only two studies , concern the issue of macroscopic coherence of the process. In it was suggested to use rad...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 181, "openalex_id": "", "raw": "T. D. Lee and A. Sirlin, “Possible method of determining the moment of charge of \\nu _e,” Rev. Mod. Phys. 36 (1964) 666.", "source_ref_id": "c06f9b120419a554849a5a0c270412f9d9c04169", "...
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.04561276733875275, -0.018931586295366287, -0.03499521315097809, -0.023126741871237755, 0.03200521320104599, -0.03639868274331093, -0.0063461242243647575, 0.0421346053481102, 0.037985216826200485, 0.025018375366926193, -0.013683830387890339, 0.0008447515428997576, -0.009702247567474842, ...
bcb1628e6a6ea5b309171e4573af8638fcfc47be
subsection
9
41
Previous studies
For neutrino scattering on a charged conductor the restoring force on the electrons accelerated by the neutrino impact would still be there, and would be due to both the pull from the positive ions and push from the excess electrons. As a result, the \omega ^4 suppression would still be present. This is quite analogous...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1103/physreva.61.052714", "end": 522, "openalex_id": "https://openalex.org/W2000069680", "raw": "J. P. J. Carney, R. H. Pratt, Lynn Kissel, S. C. Roy, and S. K. Sen Gupta, “Rayleigh scattering from excited states of atoms and ions,” Phys...
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.015418756753206253, 0.007762783206999302, -0.01182536967098713, -0.018874816596508026, 0.009666286408901215, -0.10900702327489853, 0.018508611246943474, 0.07177618145942688, -0.001564954174682498, 0.0024623472709208727, 0.002532918006181717, -0.03723084181547165, -0.022735226899385452, ...
40a7e648ad0d9c9aa15050116eb99395227ac7ca
subsection
10
41
Radiative scattering with
In the present paper we shall consider neutrino detection through coherent radiative neutrino scattering on atomic electrons or on free electrons in a conductor. We will be assuming the energies of the incident neutrinos to be higher than the corresponding characteristic atomic frequencies \omega _{at} or plasma freque...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.0094594182446599, -0.016050497069954872, -0.02267209067940712, 0.003444296307861805, 0.0070335352793335915, -0.047907378524541855, 0.010603702627122402, 0.031216081231832504, 0.025403115898370743, 0.04564932361245155, 0.010397732257843018, -0.011191102676093578, -0.02154306322336197, 0.0...
8a2f793e942b53bc1b805bc35220739e661c5dc0
subsection
11
41
The structure of this paper
The paper is organized as follows. In Section  we consider the radiative neutrino scattering on free non-relativistic electrons, both without any additional kinematic constraints and assuming that the electron recoil momentum is limited from above by a small value p_0, allowing for macroscopic coherence of the process....
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.009558485820889473, -0.015546843409538269, -0.009070263244211674, -0.01232762448489666, 0.006968616973608732, 0.016447003930807114, 0.025769008323550224, 0.045587800443172455, 0.043146684765815735, 0.03948501497507095, 0.008109075017273426, 0.021191919222474098, -0.028545774519443512, 0...
523ece1b4f87196f6d9036a8142a813b3460de8f
subsection
12
41
Radiative neutrino scattering on electrons
We shall consider the process\nu (k)+e(p)\rightarrow \nu (k^{\prime })+e(p^{\prime })+\gamma (k_\gamma )in the rest frame of the initial electron. Herek=(\omega , \vec{k})\,,\quad p=(m, \vec{0})\,,\quad k^{\prime }=(\omega ^{\prime }, \vec{k}^{\prime })\,,\quad p^{\prime }=(E_{p^{\prime }}, \vec{p}\,^{\prime })\,,\quad...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.03372415155172348, 0.002311859279870987, -0.025102367624640465, 0.00468475790694356, 0.005607975646853447, -0.014359469525516033, 0.06653271615505219, 0.03080953098833561, 0.023179633542895317, 0.02864263951778412, 0.0052798897959291935, 0.015626033768057823, -0.009773900732398033, -0.00...
7424a007ed5649cce9b147567ac41d540ed9da43
subsection
13
41
Weak interactions induced radiative process
In calculating the cross section of radiative neutrino scattering (REF ) on “spinless electron” we take into account only the vector current part of the weak NC and CC interactions of electrons since the axial-vector current does not contribute to neutrino scattering on zero-spin targets. [Figure: Leading order Feynman...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.021914169192314148, 0.001232290524058044, -0.03311542421579361, -0.050481945276260376, 0.013024890795350075, -0.026156606152653694, 0.014940091408789158, 0.03287125378847122, 0.03796828165650368, 0.05786805599927902, 0.009598894976079464, 0.0007539672078564763, -0.01176589448004961, 0.0...
e33ce4950242b432ed7de3576fe90857bfb563c9
subsection
14
41
Weak interactions induced radiative process
(REF ).To arrive at this result one has to make use of the Fierz transformation and consider unpolarised electrons in the limit when their recoil energy is non-relativistic in the rest frame of the initial-state electrons. Note that, as we are interested in coherent effects, the summation over the electron spin states ...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.04403836652636528, 0.00857573188841343, -0.013710489496588707, -0.023072075098752975, 0.01696835272014141, 0.019501397386193275, 0.03701908513903618, 0.0068132816813886166, 0.01701412908732891, 0.035950932651758194, -0.02551356516778469, 0.002115321811288595, 0.01698361150920391, 0.0153...
4d5d0121f4d26d7866ba26b04086ffbb444d8e01
subsection
15
41
Weak interactions induced radiative process
In our case a natural choice of \omega _0 follows from the requirement that the photon energy exceed the characteristic frequency of the target system, \omega _{at} for scattering on atomic electrons or \omega _p\sim 10 eV for scattering on free electrons in a conductor. As discussed in Section REF , this will allow on...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.012904148548841476, 0.010637719184160233, -0.009622786194086075, -0.009225970134139061, 0.007890531793236732, -0.04273402318358421, 0.020481806248426437, 0.030921118333935738, 0.03977316617965698, 0.008203405886888504, -0.011606866493821144, 0.012369973585009575, -0.006009472068399191, ...
fe17664c957ebad197fbf44d39b38fa4f9410786
subsection
16
41
Weak interactions induced radiative process
(REF ).The cross section for the emission of photons with energies \omega _\gamma \ge \omega _{\gamma \rm min}\equiv \omega _0 reads\sigma _w(\omega _\gamma >\omega _0)=\frac{G_F^2 g_V^2 e^2}{(2\pi )^3}\frac{p_0^4}{2m_e^2} \Big \lbrace \ln (1/x)-\frac{3}{4}+x-\frac{1}{4}x^2 \Big \rbrace \,.For \omega _0\ll \omega one ...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.03438781201839447, 0.027766557410359383, -0.005126133561134338, -0.03469293937087059, 0.03164166957139969, -0.019146719947457314, 0.015546221286058426, 0.029795652255415916, 0.006365712266415358, -0.0024982274044305086, -0.017834672704339027, 0.00940554030239582, -0.008627465926110744, ...
5c80fd6fa5672f4be647365f4971d535d208b0cf
subsection
17
41
Radiative scattering and the neutrino magnetic dipole moment
Let us now consider the radiative neutrino scattering process (REF ) in the case when the neutrino-electron scattering is mediated by the photon exchange due to neutrino magnetic or electric dipole moments. In what follows we will for definiteness discuss the case of neutrino magnetic dipole moment \mu _\nu . We will c...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.004688275046646595, -0.022216854616999626, -0.03689584881067276, -0.03851328417658806, -0.02597052790224552, 0.0009169602417387068, 0.011344939470291138, 0.07305927574634552, 0.03411874175071716, 0.02597052790224552, 0.004138957243412733, 0.021057184785604477, -0.01669315993785858, 0.03...
b5f2dbe8444318c81d36a41ed7029d44a548c44d
subsection
18
41
Radiative scattering and the neutrino magnetic dipole moment
Without constraining |\vec{p}\,^{\prime }|, for the double and single differential cross sections we find\frac{d^2\sigma _m}{d\omega _\gamma d\cos \theta _\gamma }= \frac{\mu _\nu ^2 e^4}{(2\pi )^3}\frac{1}{4m_e^2}\cdot \frac{(\omega -\omega _\gamma )^2}{\omega _\gamma }\big (3-\cos ^2\theta _\gamma \big ) \,,\frac{d\s...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.005351732484996319, 0.013625365681946278, -0.011115429922938347, -0.03408630192279816, -0.004417181946337223, -0.004893993493169546, -0.004649865906685591, 0.011550282128155231, 0.01762295328080654, 0.0012883447343483567, -0.02749485895037651, 0.0406472273170948, 0.01933184638619423, -0...
d6684b6a7099422688ce031db0c264a6359b2104
subsection
19
41
Radiative scattering and the neutrino magnetic dipole moment
(REF ), we find, to leading order inp_0,\frac{d\sigma _m}{d\omega _\gamma }= \frac{\mu _\nu ^2 e^4}{(2\pi )^3}\frac{1}{m_e^2}\cdot \frac{1}{6} \frac{(\omega -\omega _\gamma )p_0^3}{\omega \omega _\gamma ^2} \,, \vspace*{2.84526pt}\sigma _m(\omega _\gamma >\omega _0)= \frac{\mu _\nu ^2 e^4}{(2\pi )^3}\frac{1}{m_e^2}\cd...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.0061126211658120155, -0.0034645816776901484, -0.026526181027293205, -0.04441380128264427, -0.004395592492073774, -0.02136746421456337, 0.023733148351311684, 0.05366285890340805, 0.0491451658308506, 0.012706009671092033, -0.019825953990221024, 0.012057354673743248, -0.01645294763147831, 0...
7c5e1e836101b17003e62963e41dc36e13b3523e
subsection
20
41
Radiative scattering and the neutrino magnetic dipole moment
Such an amplitude will then describe the transition of \nu _\alpha to a neutrino \nu _\beta which may be of the same or different flavour. As the final-state neutrino is not detected, in calculating the cross section of the process one has to sum over \beta . For the ultra-relativistic neutrinos we confine ourselves to...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.0073845223523676395, 0.009871458634734154, -0.03472556546330452, 0.013594234362244606, -0.028210707008838654, -0.0008348591509275138, 0.002191326580941677, 0.04430713504552841, 0.02372506633400917, 0.006305070128291845, -0.01783575676381588, -0.005835908465087414, 0.0023286419454962015, ...
7c977e1fb343e562cd1fbc20af7028f1a46fc221
subsection
21
41
DM detection through radiative coherent scattering?
It would be interesting to extend the above considerations to detection of other particles, such as DM. Unfortunately, the mechanism of enhancement of the detection cross section through macroscopic coherence considered here for neutrinos would not work for non-relativistic projectiles. The reason is actually mostly ki...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1103/physrevlett.118.031803", "end": 1300, "openalex_id": "https://openalex.org/W2511971269", "raw": "C. Kouvaris and J. Pradler, “Probing sub-GeV Dark Matter with conventional detectors,” Phys. Rev. Lett. 118 (2017) no.3, 031803 [arXiv:...
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.029047388583421707, -0.016690043732523918, -0.013318471610546112, -0.0017534843645989895, -0.012700604274868965, 0.008634884841740131, 0.03542438894510269, 0.03777381032705307, 0.024104449898004532, 0.019268304109573364, -0.028971107676625252, -0.018322432413697243, -0.04512719064950943, ...
8ede4058591cd47516d54c1617e3e2058af1d02d
subsection
22
41
Effects of atomic binding
In Section  we considered radiative neutrino scattering on free electrons. This is suitable for conduction electrons in metals; however, for scattering on atomic electrons in dielectrics the effects of atomic binding should in general be taken into account. We shall show now that for the kinematic regime of interest to...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.005265226121991873, 0.013781157322227955, -0.06440363824367523, -0.034246861934661865, 0.0035215970128774643, -0.03635295480489731, 0.03081301972270012, 0.06037459522485733, 0.031957633793354034, 0.008783007971942425, 0.021411919966340065, -0.0032297202851623297, -0.03790963068604469, -0...
ab624c7bef36ec7f15504914e7a04387faf8ae39
subsection
23
41
Effects of atomic binding
\left\lbrace \frac{\langle i|e^{-i\vec{k}_f\vec{r}} \vec{\rm p} \vec{\epsilon }_{f}^{\hspace*{1.70717pt}*} |n\rangle \langle n| e^{i\vec{k}_i\vec{r}} \vec{\rm {p}}\vec{\epsilon }_i |i\rangle }{E_n-E_i-\omega _i-i\varepsilon }+ \frac{\langle i|e^{i\vec{k}_i\vec{r}} \vec{\rm {p}}\vec{\epsilon }_i |n\rangle \langle n| e^{...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.020680267363786697, 0.01375123392790556, -0.03327157348394394, -0.04355829209089279, 0.01228606328368187, -0.010904834605753422, 0.012988124042749405, 0.048197995871305466, 0.01976453699171543, 0.014209099113941193, -0.038735438138246536, 0.019535603001713753, -0.014529605396091938, -0.0...
5207554a7e89bde3d58301d6ca09644490cd4e4e
subsection
24
41
Effects of atomic binding
As we are interested in coherent scattering on a group of atoms, by |i\rangle one should actually understand the ground state of such a system. The cancellation then happens also in the case when this state is spherically symmetric (i.e. has zero total angular momentum), even if the ground states of the individual atom...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.012467892840504646, 0.027408000081777573, -0.03281024470925331, -0.026309238746762276, 0.023898066952824593, -0.08222400397062302, 0.03754102438688278, 0.02250935509800911, 0.031497836112976074, 0.03223034366965294, 0.0016729410272091627, -0.020723866298794746, -0.04218024015426636, 0.01...
53c6765ccd1f64e5bf20208b6ee543225ceddad2
subsection
25
41
Effects of atomic binding
The fact that the probability of the radiative scattering without excitation or ionization of the target atoms is small is already taken into account by the suppression of the individual cross sections which we found upon constraining the electron recoil momentum by |\vec{p}\,^{\prime }|\lesssim p_0\sim 10^{-5} eV.
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.03244950994849205, -0.018056334927678108, 0.004098162055015564, 0.0025375026743859053, -0.03086213767528534, -0.02715318650007248, 0.045575838536024094, 0.04420215263962746, 0.017048966139554977, 0.01778159849345684, -0.03580740466713905, -0.005380268674343824, -0.023673182353377342, -0...
556989959044290352327f1981eae50d5821401d
subsection
26
41
Coherent effects and the cross sections
Let us now assess the effects of macroscopic coherence on the cross sections of neutrino detection process (REF ).As discussed in Sections REF and REF , in order to take possible macroscopic coherence effects into account one has to multiply the elementary amplitude of the process by the relevant structure factor (such...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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ad3b21b62405966f493d82c5a517c93ebdd8c892
subsection
27
41
Coherent effects and the cross sections
No such problems arise for radiative processes discussed in the present paper.We shall now estimate the effects of possible macroscopic coherence on radiative neutrino scattering on electrons. The corresponding cross sections with the net electron recoil momentum constrained by |\vec{p}\,^{\prime }|\le p_0 with a small...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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cbd53543d611d928654afe737aa72dd6241d9611
subsection
28
41
Coherent effects and the cross sections
(REF ) and (REF ) we then find\frac{d\overline{\sigma }_m}{d\omega _\gamma }\simeq \frac{\mu _\nu ^2 e^4}{6}\, \frac{(\omega -\omega _\gamma )}{\omega \omega _\gamma ^2}\, \frac{n_e}{m_e^2} \,, \vspace*{2.84526pt}\overline{\sigma }_m(\omega _\gamma >\omega _0)\simeq \frac{1}{6}\, \mu _\nu ^2 e^4 \frac{n_e}{m_e^2 \omeg...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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bf73e785ea6ceb47ad08935fc8b72e480508ab20
subsection
29
41
Coherent effects and the cross sections
Mutiplying the squared matrix element of the elementary process by|F(\vec{k}-\vec{k}^{\prime }-\vec{k}_\gamma )|^2 \simeq N_e n_e (2\pi )^3 \delta ^3(\vec{k}-\vec{k}^{\prime }-\vec{k}_\gamma )\,,performing the integration over the momenta of the scattered neutrino and the recoil electron as well as over the directions ...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.003171176416799426, -0.0023454881738871336, -0.03130368888378143, -0.02640676498413086, 0.023050619289278984, -0.02971714548766613, 0.02228785865008831, 0.039358437061309814, 0.010327775962650776, 0.042653560638427734, -0.0017476747743785381, 0.008420875295996666, -0.015728119760751724, ...
5da1f976d34f5bee2faf35861f20c5f64171876d
subsection
30
41
Coherent effects and the cross sections
(REF )n_e=N_A \rho (\rm {g/cm^3})Y_e\;{\rm cm}^{-3}\simeq (1.33\;{\rm keV})^3 \,\rho (\rm {g/cm^3}) \,,where N_A is the Avogadro constant, \rho is the density of the target material, Y_e is the number of electrons per nucleon in the target, and in the last (approximate) equality we have set Y_e=1/2. In the regime \omeg...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.0255531407892704, 0.0027231257408857346, -0.03005354478955269, -0.021983329206705093, 0.025568395853042603, -0.05855101719498634, 0.00667814165353775, 0.04930612072348595, 0.03646089881658554, 0.046834710985422134, 0.004405056592077017, 0.01914578676223755, -0.018016871064901352, 0.0020...
f7a7ee55abef8191ed68fceb3d0c8ddc731fd383
subsection
31
41
Coherent effects and the cross sections
(REF ) in convenient units:\frac{d\overline{\sigma }_m}{d\omega _\gamma }\simeq 2.06\times 10^{-56} \left(\frac{\mu _\nu }{10^{-12}\mu _B}\right)^2\, \rho ({\rm g/cm^3})\,\left(\frac{100~{\rm eV}}{\omega _\gamma }\right)^2\, ~{\rm cm^2/eV} \,. \vspace*{2.84526pt}Here \mu _B=e/2m_e is the electron Bohr magneton.
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ 0.010923654772341251, 0.012540844269096851, 0.0013692709617316723, -0.035913802683353424, -0.003943805582821369, -0.0758553221821785, 0.022732187062501907, -0.02293052151799202, 0.03243532031774521, -0.00021716675837524235, -0.03307609260082245, 0.06426038593053818, -0.006602250970900059, ...
dea2957e8b9d45fd42ebc36c48733bf2403cc037
subsection
32
41
Summary and discussion
We have considered the possibility of achieving macroscopic coherence in neutrino detection experiments. For the elastic neutrino scattering processes, coherence at macroscopic scales can only be attained at the expense of unmeasurably small recoil energies of the target particles, E_{rec}\sim 10^{-43} eV, and so is of...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.012047880329191685, -0.015031238086521626, -0.05139615014195442, 0.0005765471723861992, 0.0058217435143888, -0.041965384036302567, 0.0036567109636962414, 0.036227572709321976, 0.008820360526442528, 0.05307476595044136, 0.01452002301812172, 0.0019037023885175586, -0.0233022328466177, 0.0...
34e0241f26dac8f4cc9b08a2d79566932cafe158
subsection
33
41
Summary and discussion
At the same time, the usual increase of the radiative cross section at small photon energies is limited by the requirement that \omega _\gamma exceed the characteristic atomic frequencies \omega _{at} for neutrino scattering on atomic electrons or plasma frequency \omega _p for scattering on free electrons in a conduct...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1088/1475-7516/2017/12/010", "end": 1396, "openalex_id": "https://openalex.org/W3104717429", "raw": "E. Vitagliano, J. Redondo and G. Raffelt, “Solar neutrino flux at keV energies,” JCAP 1712 (2017) no.12, 010 [arXiv:1708.02248 [hep-ph]]...
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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f70324e145601ebf6d15e9aa0b550556527b7bce
subsection
34
41
Summary and discussion
We have shown that for the conventionally discussed non-relativistic dark matter particle candidates this is not possible. The coherent enhancement mechanism studied here may, however, work for the detection of relativistic particles which usually exist in multi-component dark matter models, an example being the “boost...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1088/1475-7516/2014/10/062", "end": 337, "openalex_id": "https://openalex.org/W2070577141", "raw": "K. Agashe, Y. Cui, L. Necib and J. Thaler, “(In)direct Detection of Boosted Dark Matter,” JCAP 1410 (2014) no.10, 062 [arXiv:1405.7370 [h...
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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d61748a9bba80d37f6afd1b8e75156628c1e6fb2
subsection
35
41
Appendix G: Kinematics of the process
Consider the kinematics of the processX(k)+e(p)\rightarrow X(k^{\prime })+e(p^{\prime })+\gamma (k_\gamma )\,,where X is a projectile particle of mass M. In the rest frame of the initial-state electron the 4-momenta of the incident X-particle, initial-state electron, scattered X-particle, final-state electron and emitt...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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d1766d72bc5cc3bf4ab50a7ae85a7c2507f3e037
subsection
36
41
Appendix G: Kinematics of the process
\vspace*{2.84526pt}Here \theta _\gamma is the angle between \vec{k}_\gamma and \vec{k},  \theta _{\vec{p}^{\prime }(\vec{k}-\vec{k}^{\prime })} is the angle between \vec{p}\,^{\prime } and \vec{k}-\vec{k}_\gamma , andR\equiv |\vec{k}-\vec{k}_\gamma |=\sqrt{\vec{k}^2+\omega _\gamma ^2 -2\omega _\gamma |\vec{k}|\cos \the...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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bd448e708ee21262cf878d456806d64fb10e6b9a
subsection
37
41
Appendix G: Kinematics of the process
This requires\omega _\gamma \simeq \frac{|\vec{k}|}{M} |\vec{p}\,^{\prime }|\cos \theta _{\vec{p}^{\prime }(\vec{k}-\vec{k}^{\prime })}\,\ll \,|\vec{p}\,^{\prime }|\,.As discussed in Section REF , to achieve macroscopic coherence one needs |\vec{p}\,^{\prime }|\lesssim 10^{-5} eV; condition (REF ) then implies that the...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
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f0da05598bc8cdefa957f3d0742141f83150fec1
subsection
38
41
Appendix H: 3-body phase space volume
We shall now consider the regime of relativistic projectiles assuming that condition (REF ) is satisfied with a large margin. This will allow us to treat the projectile as essentially massless.Consider the 3-body phase space volume integralR_3\,\equiv \int \frac{d^3p^{\prime }}{2E_{p^{\prime }}}\frac{d^3k_\gamma }{2\om...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.03876364976167679, 0.036016616970300674, 0.028889600187540054, -0.017840435728430748, -0.015543612651526928, 0.03131614252924919, 0.060892503708601, 0.02866068109869957, 0.0326591357588768, -0.021258961409330368, -0.019274994730949402, 0.03699333965778351, -0.021350529044866562, 0.00167...
abff8320dbb390fd80fcb7842dbd6f73283dedc3
subsection
39
41
Appendix H: 3-body phase space volume
Using \delta (\omega -\omega ^{\prime }-\omega _\gamma )= 2\omega ^{\prime }\delta [(\omega -\omega _\gamma )^2-{\omega ^{\prime }}^2] and {\omega ^{\prime }}^{2}=\vec{k}^{\prime 2}=(\vec{k}-\vec{p}\,^{\prime }-\vec{k}_\gamma )^2, we find\delta [(\omega -\omega _\gamma )^2-{\omega ^{\prime }}^2]\,=\,\delta \big ( 2|\ve...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.015852967277169228, 0.030759943649172783, -0.013686344027519226, -0.003017251379787922, -0.016661636531352997, -0.011107757687568665, 0.02732691541314125, 0.049801815301179886, 0.027067530900239944, 0.014334805309772491, -0.021269524469971657, 0.029493536800146103, -0.01675318367779255, ...
a7acfeb17f9c147ac855116f36489b8a810528a3
subsection
40
41
Appendix H: 3-body phase space volume
Therefore, the condition |\vec{p}\,^{\prime }|\le p_0 puts a non-trivial constraint on x_\gamma =1- \cos \theta _\gamma only when the expression on the right hand side of eq. (REF ) is smaller than 2. This yields p_0/2<\omega _\gamma . On the other hand, the constraint |\vec{p}\,^{\prime }|\le p_0 is only non-trivial w...
{ "cite_spans": [] }
10.1007/JHEP10(2018)045
1806.10962
Coherent scattering and macroscopic coherence: Implications for neutrino, dark matter and axion detection
[ "Evgeny Akhmedov", "Giorgio Arcadi", "Manfred Lindner", "Stefan Vogl" ]
[ "hep-ph", "astro-ph.CO", "hep-ex", "nucl-ex" ]
2,018
en
Physics
[ -0.013132451102137566, 0.01614658161997795, -0.022129056975245476, -0.027241632342338562, -0.03330041468143463, -0.02261742204427719, 0.03555910661816597, 0.05707770586013794, 0.05130888894200325, 0.004971407353878021, -0.027470553293824196, -0.0023826889228075743, 0.008843991905450821, -0...
226f456371eccb12fec3eca18c95ad2fbc1709f6
abstract
0
30
Abstract
Long-period EUV pulsations, recently discovered to be common in active regions, are understood to be the coronal manifestation of thermal non-equilibrium (TNE). The active regions previously studied with EIT/SOHO and AIA/SDO indicated that long-period intensity pulsations are localized in only one or two loop bundles. ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.04741315171122551, 0.02079283446073532, -0.03835156559944153, 0.03005273826420307, -0.03618532791733742, -0.04668090492486954, -0.013546614907681942, 0.014278864488005638, -0.03612430766224861, 0.049640413373708725, 0.01538486685603857, -0.00519820861518383, -0.04384343698620796, -0.007...
c5831cc5f36b2fcd8daeeb21b4ff2456e61d2bd5
subsection
1
30
Introduction
Solving the coronal heating problem remains one of the biggest challenge in astrophysics. How can the tenuous plasma that constitutes the highest layer of the solar atmosphere be maintained at temperatures two orders of magnitude higher than that of the solar surface? One of the fundamental facets of this problem is to...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 520, "openalex_id": "", "raw": "Mendoza-Briceño, C. A., Sigalotti, L. D. G., & Erdélyi, R. 2005, The Astrophysical Journal, 624, 1080. http://iopscience.iop.org/0004-637X/624/2/1080", "source_ref_id": "a95e64d9788ceb521fa91b...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.021806644275784492, 0.015778914093971252, -0.03946254774928093, 0.028154833242297173, -0.031038986518979073, -0.030123382806777954, -0.014512329362332821, 0.030703265219926834, -0.04803870990872383, 0.03216823190450668, 0.010300548747181892, -0.014725970104336739, -0.07117297500371933, ...
93daf84c4738a8eb2b09569e7844771aba824b99
subsection
2
30
Introduction
In particular, these pulsations are very common in coronal loops. They have also been observed with the coronal channels of the Atmospheric Imaging Assembly , on board the Solar Dynamics Observatory , during the six first years of the AIA archive . studied three examples of such events in detail, with respectively peri...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 351, "openalex_id": "", "raw": "Boerner, P., Edwards, C., Lemen, J., et al. 2012, , 275, 41", "source_ref_id": "e1cebfec2d234dcb7b1f57245e76433a2564a6d9", "start": 66 }, { "arxiv_id": "", "doi": "",...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.02746548317372799, 0.021087387576699257, -0.04193063825368881, 0.030273064970970154, -0.032744958996772766, -0.04666080325841904, -0.01267226878553629, 0.0149534298107028, -0.04751528427004814, 0.0594780296087265, -0.009956237860023975, -0.016692910343408585, -0.03161582350730896, 0.019...
72f59ad106392803b28bbfbaa0c96a5dc67b2e65
subsection
3
30
Parameter-space scan
For this parameter-space study, we use the same 1D hydrodynamic code as in and in Paper I. The 1D description is particularly suited for this kind of study as multiple configurations of loops can be easily tested. The loop geometries used in these simulations, except for one loop (loop A, see Section REF ), are from th...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 91, "openalex_id": "", "raw": "Mikić, Z., Lionello, R., Mok, Y., Linker, J. A., & Winebarger, A. R. 2013, , 773, 94", "source_ref_id": "dfae77847f6f4de149355a88a44348b781182467", "start": 0 }, { "arxiv_id...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.080956369638443, 0.018941713497042656, -0.04902561381459236, 0.008478744886815548, -0.014042205177247524, -0.03046547994017601, -0.011775610037147999, 0.018850134685635567, 0.006250307895243168, 0.023551220074295998, -0.019384348765015602, -0.010340862907469273, 0.016392748802900314, -0...
f4e137764142370c194b27704efb3b468b38224e
subsection
4
30
Method and parameters explored
We choose to focus on three different loop geometries and to scan various heating configurations for these loops. In addition of the loop geometry that matches the pulsating loop bundle already used in Paper I (noted here as loop B), we use a semi-circular geometry as a control sample (loop A) and we picked another loo...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 993, "openalex_id": "", "raw": "Mikić, Z., Lionello, R., Mok, Y., Linker, J. A., & Winebarger, A. R. 2013, , 773, 94", "source_ref_id": "dfae77847f6f4de149355a88a44348b781182467", "start": 791 }, { "arxiv...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.04376935958862305, 0.002340699313208461, -0.044227197766304016, 0.0019782439339905977, -0.006707333959639072, -0.036962829530239105, 0.007790884934365749, -0.001094043254852295, -0.011415439657866955, 0.032384444028139114, -0.029545843601226807, -0.006085436791181564, 0.01617695949971676,...
9c13b3c0d7204d7391e36a42b7f5577c8ce4009a
subsection
5
30
Method and parameters explored
The scan cube is then (H_1, \lambda _1, \lambda _2).For each simulation, we can define the heat flux, i.e. the total heat that the loop receives over its length, normalized to the first loop footpoint cross-section area :Q_0= \frac{1}{A_0} \int _{0}^{L} H(s) \times A(s)\, ds \hspace{28.45274pt}[\mathrm {W} \, \mathrm {...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.021098382771015167, 0.020030496641993523, -0.05205183103680611, -0.0022730722557753325, -0.015179242007434368, -0.06700223684310913, -0.008688018657267094, 0.003638441441580653, 0.015118219889700413, -0.00023622218577656895, 0.045614004135131836, -0.0203356072306633, 0.0015951552195474505...
b63351a25ff85d9a0a6434f5a84a31025a10ea50
subsection
6
30
Loop geometries
In Figure REF , we present the loop geometry of loop A, the test case semi-circular geometry we use for the first set of simulations. In Figure REF , we present the loop geometry of loops B and C which are from two field lines extracted from the LFFF extrapolations of the active regions presented in Figure REF . These ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.05519789457321167, 0.031580884009599686, -0.044487856328487396, -0.021511618047952652, -0.0317944772541523, -0.006209381856024265, 0.021679438650608063, 0.023586496710777283, 0.01910109631717205, 0.0077540990896523, -0.03536449000239372, 0.03307601809501648, 0.003123761620372534, 0.0156...
1d67c428129a4e607ab13d56fd1a6f490e3b52e4
subsection
7
30
Loop A
This loop is a semi-circular loop with the same length as loop B, i.e L=367 \, \mathrm {Mm}. The magnetic field along the loop is given by:B(s) = B_0 + B_1(e^{-s/l}+e^{-(L-s)/l})with B_0 = 1 \, \mathrm {G}, B_1 =10 \, \mathrm {G} et l=14 \, \mathrm {Mm} . The loop expansion factor reaches a value of 11 at the loop apex...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 255, "openalex_id": "", "raw": "Mikić, Z., Lionello, R., Mok, Y., Linker, J. A., & Winebarger, A. R. 2013, , 773, 94", "source_ref_id": "dfae77847f6f4de149355a88a44348b781182467", "start": 93 } ] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.06645011156797409, -0.006860867142677307, -0.05568018928170204, -0.028358759358525276, -0.03066224232316017, -0.026314610615372658, -0.00825287215411663, 0.026833275333046913, -0.0055069997906684875, 0.017360014840960503, -0.026406139135360718, 0.051042716950178146, -0.00899273157119751, ...
bf3007be0f4b6966fb7b5f3d9860bfb025556736
subsection
8
30
Loop B
This is the same loop that we studied in Paper I. It corresponds to the pulsating loop bundle detected in AIA data. It is quite a large and asymmetric loop with L=367 \, \mathrm {Mm}. As in Paper I, s=0 corresponds to the eastern footpoint, while s=L corresponds to the western footpoint. The apex is at an altitude of 8...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.06154109537601471, 0.0028318208642303944, -0.06883326917886734, 0.0037071111146360636, -0.010450086556375027, -0.046651627868413925, -0.006380655337125063, 0.027536360546946526, -0.002500011585652828, 0.0035469273570924997, -0.021052729338407516, 0.04198341444134712, -0.02202908881008625,...
8f448626ea234336eea2587155b78eb9459d44c9
subsection
9
30
Loop C
This field-line corresponds to a non-pulsating loop bundle in the AIA data. It is located in the small active region at the West of NOAA AR 11499. We did not find any intensity pulsations in any of the loops of this region. The loop chosen is shorter than the previous ones, with L=139 \, \mathrm {Mm}. As for loop B, s=...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.06352876871824265, -0.0032019931823015213, -0.06432211399078369, 0.015165128745138645, -0.03646343573927879, -0.0330764576792717, 0.0030627762898802757, 0.051170866936445236, 0.00749102421104908, 0.00605308311060071, -0.020001491531729698, 0.018018124625086784, 0.012190078385174274, 0.0...
4916d0804a55dc6257693444b020ffccf004bdd0
subsection
10
30
Exploration of heating parameter space
For each loop geometry, we present hundreds of simulations, which is still only a fraction of the parameter space we explored. We choose here to focus only on the area of the parameter space surrounding the simulations showing TNE cycles.The results of the exploration for each loop geometry are displayed using grid plo...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.049675408750772476, 0.013410530053079128, -0.03576141223311424, 0.02184741571545601, -0.03637167811393738, -0.03040635585784912, -0.005614419933408499, -0.025493737310171127, -0.007933419197797775, 0.028163637965917587, 0.015805812552571297, -0.0026756220031529665, -0.01868930459022522, ...
0225f012eb14595535e8f1696b62bb531b2b73f3
subsection
11
30
Physical limitations on the domains explored
As mentioned earlier, we explored a very large range of heating for each loop geometry, in particular in terms of scale heights: \lambda _{1} and \lambda _{2}. We did not limit the study to specific ranges that would be appropriate to the magnetic field configuration of each loop system. As a consequence, it is likely ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.030556028708815575, 0.031868625432252884, -0.05000077560544014, 0.03363910689949989, -0.016361670568585396, -0.06972025334835052, -0.01016499288380146, -0.0007359508308582008, 0.002445855876430869, 0.01894107460975647, 0.026465611532330513, 0.009447643533349037, -0.035104330629110336, 0...
e47bb9e6f8a1521c2e4014413e60a967884f456d
subsection
12
30
Criteria to distinguish between the different behaviors
Within the parameter-space, we detect the TNE cases and determine the nature of the condensations, using only the temperature profiles.
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.02461039274930954, -0.002418318297713995, -0.031827203929424286, 0.05312671512365341, -0.015638966113328934, -0.015715254470705986, 0.0008014970226213336, 0.021589402109384537, 0.003122071735560894, 0.059687450528144836, -0.006179299205541611, -0.011809326708316803, 0.003966957330703735, ...
314960a3a7aac0c5555225fcd97d8651099474a4
subsection
13
30
TNE events
They are detected within the parameter-space using Fourier analysis. We look at periods between 2 and 16 hours as we did for the AIA observations. For each simulation, we look at the evolution of the temperature averaged around the loop apex. We do not consider the beginning of these temperatures curves, i.e. the first...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.017573611810803413, 0.002067035064101219, -0.039571136236190796, 0.03923553228378296, -0.041645798832178116, -0.044574737548828125, 0.010571626015007496, 0.021463604643940926, -0.002093731192871928, 0.06333822757005692, 0.006098134908825159, 0.010838586837053299, -0.04610022157430649, 0...
bacc6d1df489f5e6d18a48b40236731980686eeb
subsection
14
30
Distinction between ICs and CCs
We look at the nature of the condensations not only around the apex but all along the coronal part of the loops. In fact if some CCs occur low enough in one of the loop legs, the evolution of temperature around the loop apex is not very different from an IC case (see e.g. the first, noted as IC and the third, noted as ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.03701592609286308, -0.0012187332613393664, -0.04122713580727577, 0.051205869764089584, 0.007045384496450424, -0.06512117385864258, -0.004302757792174816, 0.011191748082637787, -0.04803220555186272, 0.043241191655397415, 0.011702891439199448, -0.029097018763422966, -0.03860275819897652, ...
77252ff5219a44eac1b38c5606a321ac54e19d30
subsection
15
30
Loop A
For this group of simulations H_0=1 \times 10^{-7} \, \mathrm {W} \, \mathrm {m}^{-3}. We scan three values of H_1: 640 H_0, 1280 H_0, and 2560 H_0. For each value of H_1, \lambda _1 and \lambda _2 are scanned between 2\% and 11\% of L, i.e. we test 10 values between 7.3 Mm and 44.0 Mm. Every combination is tested, so ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "10.1007/s00159-003-0019-3", "end": 2471, "openalex_id": "https://openalex.org/W2047082623", "raw": "Reale, F. 2014, Living Reviews in Solar Physics, 11, 4. http://adsabs.harvard.edu/abs/2014LRSP...11....4R", "source_ref_id": "fac9f300...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.03634487837553024, 0.002900953171774745, -0.041502129286527634, 0.008796315640211105, -0.004890232812613249, -0.017256952822208405, 0.004668989684432745, 0.029768623411655426, -0.031340211629867554, 0.043302591890096664, 0.022887203842401505, -0.003974744584411383, -0.014518116600811481, ...
764d7ac09c2f85c8e756b7c4860d77558957452a
subsection
16
30
Loop A
The velocities are lower close to TNE cases.We use the velocity mapsWe do not show the velocity maps in this paper for conciseness. However, Figure REF allows us to identify the SE cases, without looking at the velocity maps. to analyze the loops without cycles. For each H_1, in the region where \lambda _1 > \lambda _2...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1349, "openalex_id": "", "raw": "Mikić, Z., Lionello, R., Mok, Y., Linker, J. A., & Winebarger, A. R. 2013, , 773, 94", "source_ref_id": "dfae77847f6f4de149355a88a44348b781182467", "start": 1309 } ] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.0760507807135582, 0.007473088335245848, -0.013839899562299252, 0.05249090865254402, -0.010810990817844868, -0.017654646188020706, -0.006263813469558954, 0.049774810671806335, -0.0032463492825627327, 0.04547177627682686, 0.03335614129900932, -0.025024736300110817, -0.004344996064901352, ...
8fa45b938c90838fb1f36a7aa25f72fd148030e0
subsection
17
30
Loop B
We use the same H_0, i.e. 1 \times 10^{-7} \, \mathrm {W} \, \mathrm {m}^{-3}, for the simulations with this loop geometry. We scan two valuesIn our analysis, we scanned a third value of H_1: 320 \, H_0, however we detected no TNE cases for this scan. of H_1: 640 \, H_0, as presented in Figure REF , and 1280\, H_0, as ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.03507063910365105, 0.03504011780023575, -0.05133926495909691, 0.0057115694507956505, 0.00568486237898469, -0.014368584379553795, -0.01744375191628933, 0.023609347641468048, -0.007920653559267521, 0.02086229994893074, 0.0030827978625893593, 0.013239243067800999, -0.023655131459236145, 0....
d4ea5172b01f8c144786ed9a297e0625a3208087
subsection
18
30
Loop B
But we observe the same pattern of velocity evolution within the parameter space, i.e. higher velocities when the heating is highly stratified, \lambda _1 + \lambda _2 < 60 \, \mathrm {Mm} in that case. Moreover, as for loop A, velocities at the apex are lower in the TNE domain.At each side of the TNE domain, the simul...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.09381436556577682, 0.006984958425164223, -0.010559456422924995, 0.035188015550374985, -0.001843517879024148, -0.014839698560535908, -0.018784236162900925, 0.06341777741909027, -0.0007510451832786202, 0.031769923865795135, 0.026886940002441406, -0.004013204015791416, 0.013206950388848782, ...
e90c52b9ef7954df3307482c1e0b82df5c0318a8
subsection
19
30
Loop C
For this last loop geometry, we parameterize the heating function with H_0=2 \times 10^{-6} \, \mathrm {W} \, \mathrm {m}^{-3}. We scan three values of H_1: 20 H_0, as presented in Figure REF , 40 H_0, as presented in Figure REF , and 80 H_0, as presented in Figure REF . For each value of H_1, \lambda _1 and \lambda _2...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.027453823015093803, 0.02122749760746956, -0.026171931996941566, 0.008347549475729465, -0.02264673262834549, -0.018495850265026093, -0.0012809367617592216, 0.00647812569513917, -0.021715836599469185, 0.03320707008242607, 0.04034903272986412, -0.0029758173041045666, -0.01671035960316658, ...
592f7cae0728f6ae49a0edc09449314a49892613
subsection
20
30
Conditions that favor TNE and constraints on the heating
Scanning the parameter space of heating configurations for different loop geometries, we have noticed that the distribution of the occurrence of TNE depends on the loop geometry. However, from this study, it seems that we are able to produce TNE-favorable conditions for any loop geometry. TNE will occur if the heating ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 721, "openalex_id": "", "raw": "Müller, D. A. N. 2004, PhD thesis", "source_ref_id": "6b0e94bd8c7d934dd6130039ab92e0f21789f511", "start": 480 }, { "arxiv_id": "", "doi": "", "end": 721, ...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.0354829840362072, 0.03606267273426056, -0.05388043820858002, 0.03240148723125458, -0.010579299181699753, -0.03508635610342026, -0.02733684703707695, 0.029319990426301956, -0.03499482572078705, 0.02358413301408291, 0.01353112980723381, -0.0316387414932251, -0.018778827041387558, 0.003165...
65f459610583ab21e293023bbc5ee465a58b8a17
subsection
21
30
Exploration de-correlated from the magnetic field strength
For each of the geometries tested, not all the stratified heating configurations lead to TNE. The area where TNE occurs is limited to some range in the heating parameter space. This leads to the question as to whether the area explored within the parameter space is realistic. In particular, the heating is somewhat corr...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 434, "openalex_id": "", "raw": "Rappazzo, A. F., Velli, M., Einaudi, G., & Dahlburg, R. B. 2007, The Astrophysical Journal Letters, 657, L47. http://adsabs.harvard.edu/abs/2007ApJ...657L..47R", "source_ref_id": "71088da710b2...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.03340781852602959, 0.039540212601423264, -0.032950177788734436, 0.017253078520298004, -0.03365189582109451, -0.07017167657613754, -0.0013605295680463314, 0.009190963581204414, -0.0027115249540656805, 0.012058849446475506, 0.019648069515824318, -0.01399619784206152, -0.01993790827691555, ...
f39b349b7a4370cbab817f505b537d605855b601
subsection
22
30
Common characteristics of TNE events
From the analysis of the flows, using in particular the averaged apex velocity (see Section REF ), we noticed that the siphon flows are more intense for short heating scale heights. Moreover, they tend to be weaker close to the TNE conditions (see Figures REF to REF ).We examine also some characteristics of the cycles ...
{ "cite_spans": [] }
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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4ca04bc13cc1048842411e84d93d06ee6f23a827
subsection
23
30
Period of the TNE cycles
We can notice an evident dependence on the loop length. The periods are from 2.5 hr to 15.5 hr for loop A, and from 5.5 hr to 15.5 hr loop B, which are both 367 Mm long, and from 2.4 hr to 5.9 hr for loop C, which is 139 Mm long. This dependence has already been seen in the EIT event statistics of , the AIA event stati...
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10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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48f91e7d37ee2bca9cd7f61cf975cfef48e29c63
subsection
24
30
Time lag between
We compute the time lag between the temperature and density evolution. This delay is also a characteristic of TNE cycles; it is a signature of TNE when combined with the periodicity. It also explains the systematic cooling pattern observed between EUV channels, the intensity peaking first in the hotter channels and the...
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10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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b4c1a60f080c2415e22a194bd2abc56efc6cf449
subsection
25
30
EUV pulsations and coronal rain
Figure REF shows three TNE cases for loop B. We display the temperature, density and velocity evolution along the loop, for three days of simulation, i.e. about 8 evaporation/condensation cycles . These simulations are extracted from Figure REF and thus correspond to H_1 = 12.8 \times 10^{-5} \, \mathrm {W} \, \mathrm ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 197, "openalex_id": "", "raw": "Froment, C., Auchère, F., Bocchialini, K., et al. 2015, The Astrophysical Journal, 807, 158. http://iopscience.iop.org/0004-637X/807/2/158", "source_ref_id": "736ec0bc05367988ad8e4f2536e3a7e63...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.0039282008074223995, -0.004343903623521328, -0.04454503208398819, 0.03768021613359451, -0.0054994807578623295, -0.038015831261873245, -0.0032684155739843845, 0.0294271819293499, -0.025232015177607536, 0.02211996540427208, 0.001620859489776194, -0.01131931971758604, -0.028588147833943367, ...
cdec5fe1ddadb89fc4941653e337438f3272aaa2
subsection
26
30
EUV pulsations and coronal rain
For comparison, we add the same plot from the AIA observations. The intensity is given along the loop defined by a smoothed version of the orange contourNote that the length of the observed loop is then a bit shorter that the length of the simulated loops (derived form LFFF extrapolations). It does not affect our analy...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 2330, "openalex_id": "", "raw": "Soufli, R., Spiller, E., Windt, D. L., et al. 2012, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 8443, 84433C. https://ui.adsabs.harvard.edu/#abs/2012SPIE.8443E..3CS/abstrac...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
[ -0.017197702080011368, -0.007557375356554985, -0.05462978780269623, 0.01944088004529476, -0.028459373861551285, -0.03134346008300781, -0.006569308694452047, 0.032442159950733185, -0.027620088309049606, 0.0518525205552578, 0.0005274139693938196, -0.015442834235727787, 0.0012245923280715942, ...
0d47f06e3108f27c150e2fd4aa25c96624feb408
subsection
27
30
Are all the results of these simulations realistic?
We have previously seen that some of the TNE cases can reproduce very well the average behavior observed with AIA, in case of long-period intensity pulsations (see also the results of Paper I). Looking beyond the TNE cases, we can ask ourselves if the non TNE cases produced in the parameter space are realistic. Only a ...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 1729, "openalex_id": "", "raw": "Del Zanna, G., & Mason, H. E. 2003, Astronomy and Astrophysics, 406, 1089. https://ui.adsabs.harvard.edu/#abs/2003A&A...406.1089D/abstract", "source_ref_id": "a3ac7229af1bced1cc0e0608534e02e6...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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d43738c2f7a0ab7b4a52402b917e31b065d6a27a
subsection
28
30
Summary
In this paper, we explored a large range of dynamics, scanning different regimes of thermal non-equilibrium (TNE) and other behaviors in coronal loops. Several parameter-space studies regarding TNE cycles have already been conducted , , . Our study takes into account the recent discovery that long-period intensity puls...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 238, "openalex_id": "", "raw": "Müller, D. A. N. 2004, PhD thesis", "source_ref_id": "6b0e94bd8c7d934dd6130039ab92e0f21789f511", "start": 152 }, { "arxiv_id": "", "doi": "", "end": 238, ...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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5eafa48afde8b2751f7e55e10b85a8219f5011a6
subsection
29
30
Summary
We found that the period (from 2.4 to 15.5 hrs) is increasing with the length of the loop and with the maximum temperature reached. These periods tend also to be longer for CC compared to IC for the same loop geometry. The time delay between the temperature and density evolution, characteristic of TNE events when combi...
{ "cite_spans": [ { "arxiv_id": "", "doi": "", "end": 766, "openalex_id": "", "raw": "Fang, X., Xia, C., & Keppens, R. 2013, The Astrophysical Journal Letters, 771, L29. http://adsabs.harvard.edu/abs/2013ApJ...771L..29F", "source_ref_id": "4e9f1dcc0f5eb2f5381e6101d51e96d0046fec...
10.3847/1538-4357/aaaf1d
1802.04010
On the occurrence of thermal non-equilibrium in coronal loops
[ "C. Froment", "F. Auchère", "Z. Mikić", "G. Aulanier", "K. Bocchialini", "E. Buchlin", "J. Solomon", "E. Soubrié" ]
[ "astro-ph.SR" ]
2,018
en
Physics
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0a3b71c6312cb9588624311d81082198ffc37a38
abstract
0
223
Abstract
An introduction and overview of constructive reverse mathematics.
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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1d12b5b3f519e48d8b5a4ccfb8dd9fec38d36645
subsection
1
223
Constructive Mathematics
Almost all proofs in traditional mathematics invoke the law of excluded middle ([PR:LEM]LEM) at some point. Sometimes this use is as obvious as starting a proof of \varphi by “let us assume \varphi is false” followed by a derivation of a contradiction, and sometimes this use is subtly hidden in details, as it is in the...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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5276c79cb9de007027e8b0b3cfc36955fd3da24d
subsection
2
223
Constructive Reverse Mathematics
The focus of reverse mathematics—as opposed to normal, everyday mathematics—is not to find what theorems we can prove from certain axioms, but to ask which axioms are also necessary to prove certain theorems. As such the idea is neither new nor revolutionary. However, applying this approach systematically to some fragm...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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0bd371fc2529e8f3928e750de48cc087e7af4038
subsection
3
223
Constructive Reverse Mathematics
As such they provide details of why certain statements cannot be proved constructively. Often, this gives us the exact information needed to “constructivise” a theorem. For example if a theorem is shown to be equivalent to the uniform continuity theorem (see Section ) it is most likely to be true constructively if we a...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.03680900111794472, 0.04703372344374657, -0.00036578180151991546, 0.036717433482408524, -0.011926298961043358, -0.06415631622076035, -0.021761871874332428, 0.03571022301912308, 0.01896914839744568, 0.017916154116392136, -0.018419761210680008, 0.00422342075034976, -0.03775516897439957, 0....
2f2cc873c75bed4d4721e89ba62b7035750e9140
subsection
4
223
A very Short History of Constructive Reverse Mathematics
It is generally accepted that the following 1984 result by Julian and Richman is the first result in constructive reverse mathematics *Theorem 2.4.A new, alternative, proof can be found in .Proposition The fan theorem for decidable bars ([PR:FAN]FAN_{\Delta }) is equivalent to the statement that every uniformly continu...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.03259018436074257, 0.028592700138688087, -0.02415274642407894, 0.044735219329595566, 0.015196547843515873, -0.020643502473831177, 0.005618602968752384, 0.00912403129041195, 0.01702745631337166, 0.04366718605160713, -0.026120973750948906, 0.005740663502365351, 0.005134175065904856, 0.001...
e5d0a132f47e07528a1d7be4e8eb386baaa140d9
subsection
5
223
A very Short History of Constructive Reverse Mathematics
Since, under the BHK interpretation *Chapter 5 of the logical connectives this implies that we have either proved Fermat's last theorem or found a counterexample, Brouwer rejected such theorems T.Sequences like \alpha _n and \beta _n might become obsolete for this purpose, since the underlying problem might get solved;...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.02381278946995735, 0.027748536318540573, -0.028770608827471733, 0.016459962353110313, -0.010060560889542103, -0.03310298174619675, 0.0457034707069397, 0.013241192325949669, 0.014354795217514038, 0.031974125653505325, -0.005076044704765081, 0.022455109283328056, -0.0033293666783720255, 0...
96e91fae1aa650b8f2c41d60901ff05f403fcc04
subsection
6
223
A very Short History of Constructive Reverse Mathematics
We would also like to add that if the point of an Brouwerian counterexample were only to show that some statement T implied an unacceptable statement and is therefore unacceptable itself, then there would be no point in distinguishing between, say, [PR:LPO]LPO and [PR:LLPO]LLPO and simply work with the weakest one. The...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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11154188b412cf81a1c90a23fcfca8c043998e08
subsection
7
223
Foundational Aspects
In the tradition of Bishop-style constructive mathematics eB67,dB85,dBlV06 we will be working informally, in the same sense that most mathematicians work informally. That is not to say that we will be vague or imprecise, but that we are happy to skip details for the sake of readability and clarity of ideas. However, we...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.011618513613939285, -0.002559429733082652, -0.02161974273622036, 0.02433556132018566, -0.003596933325752616, -0.06267742067575455, 0.05053252354264259, -0.01870557852089405, 0.0024793283082544804, 0.027280239388346672, -0.009032383561134338, 0.024350818246603012, -0.013396001420915127, ...
4378f92f848e34937721a88c9d42da68ce1d13ac
subsection
8
223
Foundational Aspects
These are the following principles.[Sec:Choice]ACC If S is a subset of \mathbb {N}\times B, and for each n \in \mathbb {N} there exists b \in B such that (n, b) \in S, then there is a function f: \mathbb {N}\rightarrow B such that (n,f(n)) \in S for each n \in \mathbb {N}. [Sec:Choice]ADC If a \in A and S \subset A \ti...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.010773793794214725, 0.004406420513987541, -0.011773345060646534, 0.052892304956912994, -0.005951528903096914, -0.04700182005763054, 0.04874149709939957, -0.013337529264390469, -0.0077217272482812405, 0.03146680071949959, -0.022829454392194748, -0.010384655557572842, -0.01634381338953972, ...
f1de1ca2e4fd2f68d97d6a9eb59bb17e4c234cb6
subsection
9
223
Foundational Aspects
Large parts of traditional Bishop style constructive mathematics could be rendered choice-free by switching to represented reals and making similar definitions and arguments for other objects such as point-wise continuous functions and so on. However, there are also uses of [Sec:Choice]ACC and [Sec:Choice]ADC of a mor...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.05483298376202583, 0.005854801740497351, 0.000019309401977807283, 0.02334292232990265, -0.021084913983941078, -0.0504695326089859, 0.0374402180314064, 0.012541099451482296, 0.008391246199607849, 0.010870479047298431, 0.011084074154496193, -0.017270712181925774, 0.010031353682279587, 0.0...
26b44f22c39b0e2a46abf1a62e0bfd8869e6acdd
subsection
10
223
Overview and Plan
Contrary to Simpson style reverse mathematics, in which most theorems fall into one of the “big five” categories,Although recent work has shown that there are more than the big five. there is a plethora of principles that have been considered in constructive reverse mathematics, with a quick count totalling about 17 ma...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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11ce56854240b6100402434abef8e4dd46a07e8d
subsection
11
223
Overview and Plan
Actually, [PR:WMP]WMP is true everywhere, but fits better into this chapter than into the chapter about [PR:BDN]BD-N. [font=,baseline=(current bounding box.north)] [mylightblue!200](90:0.4cm) circle (0.5cm); [mylightblue!200] (210:0.4cm) circle (0.5cm); [mylightblue!80] (330:0.4cm) circle (0.5cm); (90:0.4cm) circle ...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
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0cde854193ae435e1ac2fe2158bcbb83b2aa1756
subsection
12
223
Version History
The numbering of theorems and equations is kept consistent between minor version increases, for example from 1.0 to 1.1, but not between major version increases, for example from 1.9 to 2.0. Minor minor version changes, such as 1.1 to 1.1.2, are reserved for correction of typos and changes in presentation, but not math...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.011686882004141808, 0.000486317730974406, -0.0017364403465762734, -0.021970119327306747, 0.0022580400109291077, -0.050866927951574326, 0.07573588192462921, 0.010161180049180984, 0.006213424261659384, -0.00754459947347641, -0.004611436277627945, -0.014135635457932949, -0.029644403606653214...
e43d768c6ecb7b46d8f3fe433366cc347300a184
subsection
13
223
[PR:LEM]LEM and [PR:WLEM]WLEM
The possibly strongest of all omniscient principles is the law of excluded middleOften, such as in , it is called the principle of excluded middle—PEM. Of course it also well known under its Latin name tertium non datur. itself. [leftmargin=2em,rightmargin=3em,skipabove=1em,skipbelow=1em, innerleftmargin=-1em,innerrigh...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.03369529917836189, 0.014947710558772087, 0.005753227975219488, 0.004684989340603352, -0.020937476307153702, -0.0817355141043663, 0.015581023879349232, 0.03635063394904137, 0.03928066045045853, 0.057745929807424545, -0.04871167987585068, 0.039768997579813004, -0.03262706100940704, -0.014...
be0079cfbff9f29df41f5df9b0ac293ab176156a
subsection
14
223
[PR:LEM]LEM and [PR:WLEM]WLEM
Hence the first alternative holds and we are done.Conversely let \varphi be any syntactically correct closed statement and consider the setS = \mbox{$\left\lbrace \,x \, | \, x = 0 \wedge (\varphi \vee \lnot \varphi ) \,\right\rbrace $} \ .Then the assumption that S=\emptyset leads to a contradiction and thus, S \ne \e...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.010312089696526527, 0.046984076499938965, -0.04039410129189491, 0.03142441436648369, -0.006399292033165693, -0.05497746914625168, 0.03627536818385124, 0.03981442749500275, 0.029105719178915024, 0.016322389245033264, -0.014552859589457512, 0.013332494534552097, -0.0057357181794941425, -0...
0e2f8faaf67e9b4f8b4776aedc967976f38efd56
subsection
15
223
[PR:LEM]LEM and [PR:WLEM]WLEM
To this end let S \subset \mathbb {R} and B\in \mathbb {N} be such that\forall {s \in S} : {-B \leqslant s \leqslant B} \ .By *Proposition 4.3, Chapter 1 it suffices to show that \lnot \lnot S is order located; that is for all a,b \in \mathbb {R} with a<b\left( \lnot \forall {s \in S} : {s \leqslant a} \right) \ \vee \...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ 0.007266253232955933, 0.012724525295197964, -0.044795211404561996, -0.0048174685798585415, -0.026806944981217384, -0.012457524426281452, -0.004390266258269548, 0.00620969058945775, 0.036037564277648926, 0.022321319207549095, -0.03068227879703045, 0.008391473442316055, 0.019041016697883606, ...
d465d1a391b9ae68414fea4ede4e30cc87101d26
subsection
16
223
[PR:LEM]LEM and [PR:WLEM]WLEM
Since \lnot (\lnot \varphi \wedge \varphi ) is provable in intuitionistic logic we have \lnot \lnot \varphi \vee \lnot \varphi ; that is [PR:WLEM]WLEM holds.Conversely assume that \lnot (\varphi \wedge \psi ). By [PR:WLEM]WLEM either \lnot \varphi or \lnot \lnot \varphi . It is easy to see that in the second case the a...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.005191580858081579, 0.0394575409591198, 0.0019778357818722725, -0.0281970351934433, -0.02612192928791046, -0.04983307421207428, 0.00408155145123601, 0.008475895039737225, 0.02725103124976158, 0.01870647445321083, -0.02207852341234684, 0.00017594538803678006, -0.019408348947763443, 0.025...
c982a0dc0678b40f4f7b002faedfa7272cba5a7a
subsection
17
223
[PR:LEM]LEM and [PR:WLEM]WLEM
To see that REF implies [PR:LEM]LEM we will show that it implies REF . Clearly \lnot \lnot \varphi implies (\lnot \varphi \Rightarrow \varphi ), and hence \varphi . To see that REF implies [PR:LEM]LEM, we simply take \psi \equiv \top and \vartheta \equiv \bot . Similarly REF implies [PR:LEM]LEM by choosing \varphi \equ...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.009079189971089363, 0.03631675988435745, -0.0018310971790924668, 0.007950013503432274, -0.05096553638577461, -0.023544857278466225, 0.03793422877788544, 0.0519116036593914, 0.01680031605064869, 0.011078137904405594, -0.045380689203739166, 0.031952645629644394, -0.015991581603884697, 0.0...
bc6a3023ec14043375feeb34215766d91dcb9abc
subsection
18
223
[PR:LPO]LPO
The ubiquitousness of the limited principle of omniscience ([PR:LPO]LPO) in analysis might only be rivalled by [PR:LLPO]LLPO's. This is mainly due to the fact, that real numbers and sequences feature prominently in analysis, and [PR:LPO]LPO tells us everything we want to know about both. [leftmargin=2em,rightmargin=3em...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.07728177309036255, 0.0013963826932013035, -0.014414027333259583, 0.0051429616287350655, -0.03043046034872532, -0.05234527587890625, 0.01312447153031826, 0.01463531143963337, -0.0014440733939409256, 0.019015222787857056, -0.06385207921266556, -0.013536518439650536, 0.013147362507879734, ...
3438f26f7ca054b41c5be090fd1992b2a6bc49cb
subsection
19
223
Basic equivalencies of [PR:LPO]LPO
Mostly taken directly from are the following equivalences:Proposition 2.1 The following are equivalent to [PR:LPO]LPO\forall {x \in \mathbb {R}} : {x < 0 \, \vee \, x = 0 \, \vee \, 0 < x} For every binary sequence (a_n)_{n \geqslant 1} we can decide whether \exists {n \in \mathbb {N}} : {\forall {n \geqslant N} : {...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.01690826565027237, 0.020738566294312477, 0.008606734685599804, 0.005379208829253912, -0.026339048519730568, 0.013451837003231049, 0.05423463508486748, 0.013604438863694668, 0.023256493732333183, 0.02035706304013729, -0.03369444981217384, -0.004360592924058437, 0.0073477705009281635, 0.0...
2b01ae78678319dd108ee1b70960757d4af3b60f
subsection
20
223
Basic equivalencies of [PR:LPO]LPO
By [PR:LPO]LPO either a_n=0 for all n \in \mathbb {N} or there exists n\in \mathbb {N} such that a_n=1. That is we can decide whether x \ne r_n for all n\in \mathbb {N} or whether there exists n \in \mathbb {N} such that x=r_n.Conversely let (a_n)_{n \geqslant 1} be a decreasing binary sequence. Definea = \sum _{n \geq...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.05984469875693321, 0.02169789932668209, 0.008621176704764366, 0.027801387012004852, -0.01647941768169403, -0.0044822487980127335, 0.01649467647075653, 0.01641838252544403, 0.0015563893830403686, 0.03631575405597687, -0.022827044129371643, -0.019775301218032837, -0.0023269548546522856, 0...
b4b3b6899a5d6fc5621b7ae7200e9dcf8a938b37
subsection
21
223
Basic equivalencies of [PR:LPO]LPO
Using countable choice we can assume that there is a binary sequence such thata_n = {\left\lbrace \begin{array}{ll} 0 & \Rightarrow f(n) \in A \\ 1 & \Rightarrow f(n) \in B \end{array}\right.}Using [PR:LPO]LPO and countable choice iteratively we can fix another binary sequence (b_n)_{n \geqslant 1} such thatb_n = {\lef...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.03863237425684929, 0.01692073605954647, -0.004203482996672392, 0.0038811652921140194, -0.013533537276089191, -0.0031812204979360104, 0.009093561209738255, 0.025281930342316628, 0.0007738490239717066, 0.026456769555807114, -0.04522368311882019, 0.004314101301133633, 0.008040782995522022, ...
8ef70ff8be34f553d09192d3578f69ba92c0325a
subsection
22
223
Basic equivalencies of [PR:LPO]LPO
If this set is decidable, then either 1 \in A or 1 \notin A. In the first case there exists n\in \mathbb {N} with a_n=1. In the second case there cannot be such an n. Hence, in that case, \forall {n \in \mathbb {N}} : {a_n=0}.
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ 0.020430756732821465, 0.01173357106745243, 0.001621185801923275, 0.023634983226656914, 0.00373444939032197, -0.04409625381231308, -0.017836859449744225, 0.05767606943845749, 0.006805166136473417, 0.03170657902956009, -0.004543134942650795, 0.003082160372287035, -0.011657279916107655, -0.01...
07c1afdff99229ac99c80c4cd201b746dae49d85
subsection
23
223
Metastability
In a program suggested by Tao , it is proposed to recover the “finite” (constructive) content of theorems by replacing them with logically (using classical logic) equivalent ones that can be proved by “finite methods.” For example, since there often is no way to attain the Cauchy condition it is replaced with the follo...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.011872644536197186, -0.016328701749444008, -0.007374621462076902, -0.0012761567486450076, 0.01099516823887825, 0.010201623663306236, 0.016984902322292328, 0.03123817965388298, -0.00030020205304026604, 0.024248884990811348, -0.0506037138402462, -0.027163634076714516, -0.0071266391314566135...
d6222c94c85d8185e56d713d23c74f2975a55c13
subsection
24
223
Metastability
Hence a_{i}=0 for all i > N, that is we only need to check finitely many entries to see if (a_n)_{n \geqslant 1} consists of 0s or whether there is a term equalling 1.One might thus hope that there is maybe a chance that every bounded, metastable sequence converges. However, also this statement is equivalent to [PR:LPO...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.001393797341734171, 0.0006039470317773521, -0.02304818294942379, -0.0022937594912946224, -0.008702176623046398, 0.00682979729026556, 0.014254485256969929, 0.02468031831085682, 0.01565018855035305, 0.010929201729595661, -0.06534640491008759, -0.011386808939278126, -0.014490916393697262, ...
aba85f47de313f16ea2477fc0c59371831b13a84
subsection
25
223
Metastability
In the first case, since (a_n)_{n \geqslant 1} has at most one 1, for all i \in [f(1)+1,f(f(1)+1)] we have a_{i}=0. In both cases there exists m such that, regardless of \varepsilon >0, we have\forall {i,j \in [m,f(m)]} : {*{a_{i} - a_{j}} = 0 < \varepsilon } \ ;that is (a_n)_{n \geqslant 1} is metastable. Now if this ...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ 0.017666693776845932, 0.0010145381093025208, -0.01751413196325302, 0.0009110819082707167, 0.028574885800480843, 0.006937762256711721, -0.020122943446040154, -0.0021797313820570707, -0.010557298548519611, 0.009550388902425766, -0.05062011256814003, -0.02495916374027729, -0.021389208734035492,...
6f9b295c0596a7ec2fa1bf581217f14f8114544b
subsection
26
223
Hillam's theorem
Hillam's theorem states that if f:[0,1] \rightarrow [0,1] is a continuous map and one defines a sequence by choosing an arbitrary x_{0} \in [0,1] and then taking x_{n+1} = f(x_n) for all n > 0, then*{x_n - x_{n+1}} \rightarrow 0 \iff (x_n)_{n \geqslant 1} \text{ is Cauchy} \ .The interesting direction here is the one f...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.0495295375585556, 0.024947872385382652, -0.023528819903731346, 0.016387777402997017, -0.018829159438610077, -0.0014200069708749652, 0.029876412823796272, 0.009651088155806065, -0.0000079273395385826, 0.010238545946776867, -0.024001838639378548, -0.038207631558179855, 0.026138046756386757,...
db755298dd9b8f9779656527b1f449f0bdfec826
subsection
27
223
Hillam's theorem
Then, by Bernoulli's inequalityx_{\infty }/2 < x_n = 1 - (1-a)^n \leqslant 1 - 1 - N(-a) = Na \ .Hence a > x_{\infty }/(2N), after dividing by N, and therefore a >0.
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.06196674704551697, 0.05009233206510544, -0.026786118745803833, 0.010348141193389893, -0.04697873070836067, 0.006967443507164717, 0.03141073137521744, 0.03431065008044243, 0.0009090873063541949, -0.017674259841442108, -0.019978933036327362, 0.002865580376237631, -0.009035545401275158, -0...
9cfd39a18ab9cbb60a60fd77a6b969ece27d938d
subsection
28
223
Cardinality
It is a well known exercise in first year mathematics to prove that there is a bijection between [0,1), and (0,1) and that therefore both sets have the same cardinality.Proposition 2.9 [PR:LPO]LPO is equivalent to the existence of a strongly extensional bijectionTo be precise: by bijection we obviously mean surjective...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.08526847511529922, 0.010933225043118, -0.01526684034615755, 0.031159309670329094, 0.035431887954473495, -0.051118358969688416, 0.02441473864018917, 0.00913263764232397, 0.017838018015027046, -0.011780111119151115, -0.01924186572432518, -0.018982458859682083, -0.02441473864018917, -0.004...
4ebf0ec189b848f502f397956fdab0139945ac74
subsection
29
223
[PR:WLPO]WLPO
Slightly weaker than [PR:LPO]LPO is the weak limited principle of omniscience. [leftmargin=2em,rightmargin=3em,skipabove=1em,skipbelow=1em, innerleftmargin=-1em,innerrightmargin=0em, nobreak=true, linecolor=blueish, linewidth=5pt, bottomline=false, topline=false, rightline=false, backgroundcolor=blueish!10]([PR:WLPO]WL...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.06629416346549988, 0.014429358765482903, 0.00033645928488112986, -0.007664881180971861, -0.01214782614260912, -0.04425715282559395, 0.02141130529344082, 0.031620971858501434, 0.0035653715021908283, 0.04129650443792343, -0.05640498176217079, 0.0013792207464575768, -0.0007005793158896267, ...
aa2b2580177e13e2596ef85ada116a60c1b95fc0
subsection
30
223
[PR:WLPO]WLPO
The “weak support” S^w_f = \mbox{$\left\lbrace \,x \in [0,1] \, | \,\lnot \left(f(x) = 0 \right) \,\right\rbrace $} of a point-wise continuous function f:[0,1] \rightarrow \mathbb {R} is located whenever it is inhabited. (Strong Intermediate Value Theorem) For any point-wise continuous function f: [0,1] \rightarrow...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.045746099203825, 0.03506488725543022, -0.01733407750725746, -0.00685504823923111, -0.0003545303479768336, -0.01722726598381996, 0.05441313609480858, 0.024215830489993095, 0.033081233501434326, 0.019500838592648506, -0.00288774142973125, -0.007000007666647434, -0.0023670324590057135, 0.0...
e98edb08392968c4e360e92152b20c4de96f30e8
subsection
31
223
[PR:WLPO]WLPO
Construct the piecewise linear function f byf(x) = {\left\lbrace \begin{array}{ll} (3-3{a}) x - 1& x \in *{0,\frac{1}{3}} \ , \\ -{a} & x \in *{\frac{1}{3},\frac{2}{3}} \ , \\ 3(1+{a}) x -2 - 3{a} & x \in *{\frac{2}{3},1} \ . \end{array}\right.} [Figure: We think of a \geqslant 0 as being very small. The function f is...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.03462886065244675, 0.03496447205543518, -0.02608605846762657, -0.021143436431884766, 0.030418479815125465, 0.01914503052830696, 0.040852904319763184, 0.010312383063137531, -0.006960095837712288, 0.0005587145569734275, -0.026284372434020042, -0.0022005343344062567, 0.025247031822800636, ...
636a0a0bbdd954e578614aab605409919bd2883c
subsection
32
223
[PR:WLPO]WLPO
Now consider f:[0,1] \rightarrow \mathbb {R} defined byf(x) = {\left\lbrace \begin{array}{ll} a & \text{for } x \in *{0,\frac{1}{2}} \\ (1-a)2x -1 +2a & \text{for } x \in *{\frac{1}{2},1} \end{array}\right.}Then f(1)=1, so 1 \in S_{f}. If the support is located that means that \delta =d(0,S_{f}) exists. Now either \del...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.06895726919174194, 0.03737728297710419, -0.0268353633582592, 0.015507758595049381, 0.0040771751664578915, 0.009031572379171848, 0.02642345055937767, 0.039116472005844116, 0.03122910112142563, -0.006777492817491293, -0.016446003690361977, 0.012845580466091633, 0.014386439695954323, 0.002...
2cf07d1a8309f3b8117961b4ca203285abb1762c
subsection
33
223
[PR:WLPO]WLPO
One technical point worth pointing out is that one needs to use a variation of Ishihara's tricks .As a direct consequence of this we also have that the Cantor-Bernstein-Schräder theorem implies [PR:WLPO]WLPO, even when restricted to functions between subsets of \mathbb {R}, since x \mapsto \frac{1+x}{2} and the identit...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.06343269348144531, 0.04874976724386215, -0.013126111589372158, 0.044781409204006195, -0.013583999127149582, -0.02674063667654991, 0.02719852328300476, 0.036112070083618164, 0.015453706495463848, -0.015705544501543045, -0.006101352162659168, -0.026099594309926033, -0.02307753451168537, 0...
2bb578cd5be66228226ab13874d69afe392bf528
subsection
34
223
The Rising Sun Lemma, and [PR:LPO]LPO and [PR:WLPO]WLPO
We can use Proposition REF to show two more equivalences of [PR:LPO]LPO and [PR:WLPO]WLPO; namely (versions of) the Rising Sun Lemma, which can be used to prove the Hardy-Littlewood maximal inequality *pp. 143.Proposition 3.8 [PR:LPO]LPO is equivalent to the following statement.Consider a continuous function f:[0,1] \...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.034459151327610016, 0.031712185591459274, -0.0399225614964962, 0.02688973769545555, -0.005024657119065523, -0.008561374619603157, -0.0008546113967895508, 0.03090335801243782, 0.010667381808161736, 0.009515182115137577, -0.05805252864956856, 0.010179031640291214, -0.023364465683698654, 0...
ae93815c047f2b24ede39be749ba028b67e17f0e
subsection
35
223
The Rising Sun Lemma, and [PR:LPO]LPO and [PR:WLPO]WLPO
To see this consider the piece-wise linear function f:[0,1] \rightarrow [0,1] defined by f(x) = {\left\lbrace \begin{array}{ll} -2x +1 & x \in *{0,\frac{1}{3}} \\ x & x \in *{\frac{1}{3},\frac{2}{3}} \\ -2x + 2& x \in *{\frac{2}{3},1} \ . \end{array}\right.} For this function the set E from the Rising Sun Lemma is *{\...
{ "cite_spans": [] }
1804.05495
Constructive Reverse Mathematics
[ "Hannes Diener" ]
[ "math.LO" ]
2,018
en
Mathematics
[ -0.04632522910833359, 0.026687361299991608, -0.03561366721987724, 0.018401918932795525, 0.03170745447278023, -0.015640106052160263, 0.0250852033495903, 0.04730178415775299, -0.031112367287278175, -0.010833634063601494, -0.029189778491854668, -0.02267433889210224, -0.030502021312713623, 0.0...