text stringlengths 4 2.78M |
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---
abstract: 'Three types of nonlinear Schr[ö]{}dinger models with multiple length scales are considered. It is shown that the length-scale competition universally results into arising of new localized stationary states. Multistability phenomena with a controlled switching between stable states become possible.'
bibli... |
---
abstract: 'In this article, we show that all admissible rational maps with fixed or period two cluster cycles can be constructed by the mating of polynomials. We also investigate the polynomials which make up the matings that construct these rational maps. In the one cluster case, one of the polynomials must be an ... |
---
abstract: 'The effects of laser-induced prealignment on the deflection of paramagnetic molecules by inhomogeneous static magnetic field are studied. Depending on the relevant Hund’s coupling case of the molecule, two different effects were identified: either suppression of the deflection by laser pulses (Hund’s cou... |
---
author:
- 'J. van Bree'
- 'M. E. Flatt[é]{}'
title: 'Supplemental Material: Atomic-scale magnetometry of dynamic magnetization'
---
Spin density of $N$-particle state
==================================
In the Letter we asserted that $\langle {\bf J}({\bf x}) \rangle = \langle {\bf J} \rangle {\cal P}({\bf x})$. H... |
---
abstract: 'We prove that two-step analytic sub-Riemannian structures on a compact analytic manifold equipped with a smooth measure and Lipschitz Carnot groups satisfy measure contraction properties.'
author:
- 'Z. Badreddine[^1]'
- 'L. Rifford[^2]'
title: 'Measure contraction properties for two-step analytic sub-Ri... |
---
abstract: 'We investigate sub-gap transport through a single-level quantum dot tunnel coupled to one superconducting and two normal-conducting leads. Despite the tendency of a large charging energy to suppress the equilibrium proximity effect, a finite Andreev current through the dot can be achieved in non-equilibr... |
---
abstract: 'The metal-insulator transition temperature in CMR manganites has been altered and brought close to the room temperature by preparing La$_{0.67}$Sr$_{0.33}$MnO$_{3}$ (LSMO)/ Nd$_{0.67}$Sr$_{0.33}$MnO$_{3}$ (NSMO) multilayers with ultra thin individual layers of LSMO and NSMO. The LSMO/NSMO multilayers wit... |
The recently discovered alkali-fullerides AC$_{60}$[@dec] (A=K, Rb, Cs) exhibit a phase transition from a high temperature cubic phase [@trans] to an orthorhombic one in which the molecules form one-dimensional polymer chains[@chauvet; @chainpekk; @stephens; @fox], at about $350K$. Despite extensive studies, the physic... |
---
abstract: 'We present a procedure for determining independently the lattice structure and the vibrational properties of the same individual nano-object. For the example of an individual single-walled carbon nanotube we demonstrate the determination of the structural indices (n,m) of the nanotube by electron diffrac... |
---
author:
- 'Junjie Cao,'
- 'Yangle He,'
- 'Liangliang Shang,'
- 'Wei Su,'
- Yang Zhang
title: Natural NMSSM after LHC Run I and the Higgsino dominated dark matter scenario
---
Introduction {#sec:introduction}
============
In the supersymmetric models such as the Minimal Supersymmetric Standard Model (MSSM) [@MSSM-... |
---
abstract: |
A nonlocal-in-time problem for the abstract Schrödinger equation is considered. By exploiting the linear nature of nonlocal condition we derive an exact representation of the solution operator under assumptions that the spectrum of Hamiltonian is contained in the horizontal strip of complex plane. T... |
---
abstract: 'Acquaah and Konyagin showed that if $N$ is an odd perfect number with prime factorization $N= p_1^{a_1}p_2^{a_2} \cdots p_k^{a_k}$ where $p_1 < p_2 \cdots < p_k$, then one must have $p_k < 3^{1/3}N^{1/3}$. Using methods similar to theirs, we show that $p_{k-1}< (2N)^{1/5}$ and that $p_{k-1}p_k < 6^{1/4}N... |
---
abstract: 'Recent works have proposed neural models for dialog act classification in spoken dialogs. However, they have not explored the role and the usefulness of acoustic information. We propose a neural model that processes both lexical and acoustic features for classification. Our results on two benchmark datas... |
---
abstract: 'We discuss the stability properties of an autonomous system in loop quantum cosmology. The system is described by a self-interacting scalar field $\phi$ with positive potential $V$, coupled with a barotropic fluid in the Universe. With $\Gamma=VV''''/V''^2$ considered as a function of $\lambda=V''/V$, th... |
---
abstract: 'Let $T_{f}$ be a circle homeomorphism with two break points $a_{b},c_{b}$ and irrational rotation number $\varrho_{f}$. Suppose that the derivative $Df$ of its lift $f$ is absolutely continuous on every connected interval of the set $S^{1}\backslash\{a_{b},c_{b}\}$, that $DlogDf \in L^{1}$ and the produc... |
---
abstract: 'We study the energy dependence of global polarization of $\Lambda$ hyperons in peripheral $Au-Au$ collisions. We combine the calculation of vorticity and strange chemical potential in the framework of kinetic Quark-Gluon String Model with the anomalous mechanism related to axial vortical effect. We pay s... |
---
abstract: 'The origin of GRBs have been a mystery for almost 30 years. The afterglow observed in the last few years enabled redshift determination for a handful of bursts, and the cosmological origin is now firmly established. Though the distance scale is settled, there still remains orders of magnitude uncertainty... |
---
abstract: 'We test several BFKL-like evolution equations for unintegrated gluon distributions against forward-central dijet production at LHC. Our study is based on fitting the evolution scenarios to the LHC data using the high energy factorization approach. Thus, as a by-product, we obtain a set of LHC-motivated u... |
---
abstract: |
We prove that any weakly acausal curve $\Gamma$ in the boundary of Anti-de Sitter (2+1)-space is the asymptotic boundary of two spacelike $K$-surfaces, one of which is past-convex and the other future-convex, for every $K\in(-\infty,-1)$. The curve $\Gamma$ is the graph of a quasisymmetric homeomorp... |
---
abstract: 'The use of Convolutional Neural Networks (CNN) to estimate the galaxy photometric redshift probability distribution by analysing the images in different wavelength bands has been developed in the recent years thanks to the rapid development of the Machine Learning (ML) ecosystem. Authors have set-up CNN ... |
---
abstract: 'This study presents a fabrication process for lithium-drifted silicon (Si(Li)) detectors that, compared to previous methods, allows for mass production at a higher yield, while providing a large sensitive area and low leakage currents at relatively high temperatures. This design, developed for the unique... |
---
abstract: 'High-resolution field localization in three dimensions is one of the main challenges in optics and has immense importance in fields such as chemistry, biology, and medicine. Time-reversal symmetry of waves has been a fertile ground for applications such as generating a subwavelength focal spot and cohere... |
---
abstract: 'The possibility of deformation of two body quantum Calogero-Moser-Sutherland models is studied. Obtained are some necessary conditions for the singular locus of the potential function. Such locus is determined if it consists of two, three or four lines. Furthermore, a new deformation of elliptic $B_{2}$ ... |
---
abstract: 'We present a novel method for active continuous-tuning of a band gap which has the great potential to revolutionalize current photonic technologies. We study a periodic structure of x and y-aligned nanorod dimers. Refractive index of an y-polarized probe pulse can be continuously-tuned by the intensity o... |
---
abstract: |
Zero-Knowledge Proof-of-Identity from trusted public certificates (e.g., national identity cards and/or ePassports; eSIM) is introduced here to permissionless blockchains in order to remove the inefficiencies of Sybil-resistant mechanisms such as Proof-of-Work (i.e., high energy and environmental co... |
---
abstract: 'In this paper, we contribute to the literature on energy market co-movement by studying its dynamics in the time-frequency domain. The novelty of our approach lies in the application of wavelet tools to commodity market data. A major part of economic time series analysis is done in the time or frequency ... |
---
abstract: |
We show that for any finite group $G$ and for any $d$ there exists a word $w\in F_{d}$ such that a $d$-tuple in $G$ satisfies $w$ if and only if it generates a solvable subgroup. In particular, if $G$ itself is not solvable, then it cannot be obtained as a quotient of the one relator group $F_{d}/\l... |
---
abstract: |
This paper contains a rich collection of results related to weight structures and $t$-structures. For any weight structure $w$ we study [*pure*]{} (co)homological functors; these “ignore all weights except weight zero” and have already found several applications (in particular, to Picard groups of t... |
---
abstract: 'A notion of the Berry phase is a powerful means to unravel the non-trivial role of topology in various novel phenomena observed in chiral magnetic materials and structures. A celebrated example is the intrinsic anomalous Hall effect (AHE) driven by the non-vanishing Berry phase in the momentum space. As ... |
---
author:
- 'Oliver Korten [^1]'
title: 'On the Complexity of 2-Player Packing Games'
---
Abstract {#abstract .unnumbered}
========
[10pt]{}[10pt]{} We analyze the computational complexity of two 2-player games involving packing objects into a box. In the first game, players alternate drawing polycubes from a share... |
---
abstract: 'We extend results of Bhagwat and Rajan on a strong multiplicity one property for length spectrum to hyperbolic manifolds with cusps, showing that for two even dimensional hyperbolic manifolds of finite volume, if all but finitely many closed geodesics have the same length, then all closed geodesics have ... |
---
abstract: 'In this paper, based on a fuzzy entropy feature selection framework, different methods have been implemented and compared to improve the key components of the framework. Those methods include the combinations of three ideal vector calculations, three maximal similarity classifiers and three fuzzy entropy... |
---
abstract: 'The spin wave spectra of multiferroic BiFeO$_3$ films is calculated using a phenomenological Landau theory that includes magnetostatic effects. The lowest frequency magnon dispersion is shown to be quite sensitive to the angle between spin wave propagation vector and the Néel moment. Since electrical swi... |
---
abstract: |
No. It is simply not plausible that cosmic acceleration could arise within the context of general relativity from a back-reaction effect of inhomogeneities in our universe, without the presence of a cosmological constant or “dark energy.” We point out that our universe appears to be described very a... |
---
abstract: 'Extensive Path Integral Monte Carlo simulations of condensed [*para*]{}-Hydrogen in two dimensions at low temperature have been carried out. In the zero temperature limit, the system is a crystal at equilibrium, with a triangular lattice structure. No metastable liquid phase is observed, as the system re... |
---
abstract: 'Let $G$ be a connected graph and $S$ be a set of vertices. The $h$-extra connectivity of $G$ is the cardinality of a minimum set $S$ such that $G-S$ is disconnected and each component of $G-S$ has at least $h+1$ vertices. The $h$-extra connectivity is an important parameter to measure the reliability and... |
---
abstract: 'We introduce a network design game where the objective of the players is to design the interconnections between the nodes of two different networks $G_1$ and $G_2$ in order to maximize certain local utility functions. In this setting, each player is associated with a node in $G_1$ and has functional depe... |
---
author:
- Jon Haël Brenas
- Rachid Echahed
- Martin Strecker
bibliography:
- 'main.bib'
title: On the Verification of Logically Decorated Graph Transformations
---
Introduction {#sec:intro}
============
Preliminaries {#sec:GGT}
=============
Graph Rewriting Systems and Strategies {#sec:GRS}
=====================... |
---
address: 'Institut für Theoretische Physik, Universität Hannover Appelstraße 2, D–30167 Hannover, Germany'
author:
- Olaf Lechtenfeld
---
phyzzx =
I investigate non-perturbative aspects of zero-dimensional matrix models. Subtleties in the large-$N$ limit of the semiclassical picture are pointed out. The tunnelin... |
---
abstract: 'In this paper, we investigate an opportunistic relaying scheme where the selected relay assists the source-destination (direct) communication. In our study, we consider a regenerative opportunistic relaying scheme in which the direct path can be considered unusable, and takes into account the effect of t... |
---
abstract: 'We give an explicit axiomatic formulation of the quantum measurement theory which is free of the projection postulate. It is based on the generalized nondemolition principle applicable also to the unsharp, continuous–spectrum and continuous-in-time observations. The collapsed state–vector after the objec... |
---
abstract: 'The energy budget of all known optical jets is discussed. It is found that to power the extended radio lobes of radio galaxies, the jet bulk motion on kpc scales must be relativistic, on average. Based on various constraints, a “most probable” region centered around $\Gamma_{bulk} \sim 7.5$ and $\theta \... |
---
abstract: 'Direct imaging of extra-solar planets is now a reality, especially with the deployment and commissioning of the first generation of specialized ground-based instruments such as the Gemini Planet Imager and SPHERE. These systems will allow detection of Jupiter-like planets $10^7$ times fainter than their ... |
---
abstract: 'We use a statistical approach to determine the relationship between the stellar masses of galaxies and the masses of the dark matter halos in which they reside. We obtain a parameterized stellar-to-halo mass (SHM) relation by populating halos and subhalos in an $N$-body simulation with galaxies and requi... |
---
bibliography:
- 'PSGM.bib'
title: 'Stochastic Proximal Methods for Non-Smooth Non-Convex Constrained Sparse Optimization: Supplementary Material'
---
Applications of non-smooth non-convex constrained sparse optimization
=====================================================================
All applications present... |
---
abstract: |
Three observations on commutators of Singular Integral Operators with BMO functions are exposed, namely
The already known subgaussian local decay for the commutator, namely $$\frac{1}{|Q|}\left|\left\{x\in Q\, : \, |[b,T](f\chi_Q)(x)|>M^2f(x)t\right\}\right|\leq c e^{-\sqrt{ct\|b\|_{BMO}}}$$ is... |
---
abstract: 'Voltage control plays an important role in the operation of electricity distribution networks, especially with high penetration of distributed energy resources. These resources introduces significant and fast varying uncertainties. In this paper, we focus on reactive power compensation to control voltage... |
---
bibliography:
- 'paper.bib'
title: |
Efficient and Effective Volume Visualization with\
Enhanced Isosurface Rendering
---
;
Acknowledgements {#acknowledgements .unnumbered}
================
|
---
abstract: |
The LTB model is studied as the Caushy problem for the equations defined two metrical functions $\lambda(\mu,\tau)$ and $\omega(\mu,\tau)$. The initial conditions throught metrical functions are presented. The rules of calculating three undetermined functions $f(\mu)$, $F(\mu)$ and ${\bf F}(\mu)$ ar... |
---
abstract: 'One of the outstanding problems in modern physics is the origin is of accelerated expansion of the universe. High-precision determinations of the Hubble parameter $\mbox{H}_0$ at different redshifts provide direct insight into the Universe expansion: equation of state of the Dark Energy, geometry and cur... |
---
abstract: 'We perform two high resolution direct numerical simulations of stratified turbulence for Reynolds number equal to $Re\approx25000$ and Froude number respectively of $Fr\approx0.1$ and $Fr\approx0.03$. The flows are forced at large scale and discretized on an isotropic grid of $2048^3$ points. Stratificat... |
---
abstract: 'We construct a new family of simple $\mathfrak{gl}_{2n}$-modules which depends on $n^2$ generic parameters. Each such module is isomorphic to the regular ${\mathcal{U}}(\frak{gl}_{n})$-module when restricted the $\mathfrak{gl}_{n}$-subalgebra naturally embedded into the top-left corner.'
author:
- Jonath... |
---
abstract: 'Motion planning and control are key problems in a collection of robotic applications including the design of autonomous agile vehicles and of minimalist manipulators. These problems can be accurately formalized within the language of affine connections and of geometric control theory. In this paper we ov... |
---
author:
- 'Sreetama Das$^{1,2}$, Titas Chanda$^{1,2}$, Maciej Lewenstein$^{3, 4}$, Anna Sanpera$^{4, 5}$, Aditi Sen(De)$^{1,2}$, and Ujjwal Sen$^{1,2}$'
title: |
Lectures on Quantum Information\
Chapter 1: The separability versus entanglement problem
---
Introduction
============
Quantum theory, formalize... |
---
abstract: 'For a sequence $a_n$ satisfying a linear recurrence relation over ${\mathbb{Q}}$, we prove some results about the residue classes $a_p\!\!\mod p$ as $p$ ranges over the primes.'
author:
- Julian Rosen
title: Terms in prime position in a recurrent sequence
---
Introduction
============
A *recurrent sequ... |
---
abstract: |
We define the notion of a $(P,{\widetilde}{P})$-structure on a universe $p$ in a locally cartesian closed category category with a binary product structure and construct a $(\Pi,\lambda)$-structure on the C-systems $CC({\cal C},p)$ from a $(P,{\widetilde}{P})$-structure on $p$.
We then define h... |
---
abstract: 'For positive $p$-harmonic functions on Riemannian manifolds, we derive a gradient estimate and Harnack inequality with constants depending only on the lower bound of the Ricci curvature, the dimension $n$, $p$ and the radius of the ball on which the function is defined. Our approach is based on a careful... |
---
abstract: |
The nature of monetary arrangements is often discussed without any reference to its detailed construction. We present a graph representation which allows for a clear understanding of modern monetary systems. First, we show that systems based on commodity money are incompatible with credit. We then s... |
---
abstract: 'We consider the problem of threshold estimation for autoregressive time series with a “space switching” in the situation, when the regression is nonlinear and the innovations have a smooth, possibly non Gaussian, probability density. Assuming that the unknown threshold parameter is sampled from a continu... |
---
abstract: 'Quasinormal mode (QNM) gravitational radiation from black holes is expected to be observed in a few years. A perturbative formula is derived for the shifts in both the real and the imaginary part of the QNM frequencies away from those of an idealized isolated black hole. The formulation provides a tool f... |
---
abstract: 'If Gamma-Ray Bursts (GRBs) are cosmologically distributed standard candles and are associated with the luminous galaxies, then the observed angular distribution of all GRBs is altered due to weak gravitational lensing of bursts by density inhomogeneities. The amplitude of the effect is generally small. F... |
---
author:
- Andrew Phillip Davies
bibliography:
- 'allrefs.bib'
title: Cocycle twists of algebras
---
Let $A$ be a $k$-algebra where $k$ is an algebraically closed field and $G$ be a finite abelian group whose order is not divisible by the characteristic of $k$. If $G$ acts on $A$ by $k$-algebra automorphisms then t... |
---
abstract: 'Multitask learning, i.e. learning several tasks at once with the same neural network, can improve performance in each of the tasks. Designing deep neural network architectures for multitask learning is a challenge: There are many ways to tie the tasks together, and the design choices matter. The size and... |
---
abstract: 'It has been shown that for every prime number $p$, the pseudovariety $\mathsf{G}_p$ of all finite $p$-groups is tame with respect to an implicit signature containing the canonical implicit signature. In this paper we generalize this result and we show that the pseudovariety of all finite nilpotent groups... |
---
abstract: 'The *threshold degree* of a function $f\colon\zoon\to\moo$ is the least degree of a real polynomial $p$ with $f(x)\equiv\sign p(x).$ We prove that the intersection of two halfspaces on $\zoon$ has threshold degree $\Omega(n),$ which matches the trivial upper bound and completely answers a question due to... |
---
abstract: 'In this paper, three topics on semi-selfdecomposable distributions are studied. The first one is to characterize semi-selfdecomposable distributions by stochastic integrals with respect to Lévy processes. This characterization defines a mapping from an infinitely divisible distribution with finite $\log$... |
---
abstract: 'We present measurements of the $t \bar t$ production cross section in b-tagged lepton + jets events from $p \bar p$ collisions at 1.96 TeV using the CDF detector at Fermilab. B-jets are tagged with either a secondary vertex algorithm, or a soft lepton tagger that identifies muons from B hadron semilepton... |
---
abstract: 'We present a method to simulate color, 3-dimensional images taken with a space-based observatory by building off of the established [*shapelets*]{} pipeline. The simulated galaxies exhibit complex morphologies, which are realistically correlated between, and include, known redshifts. The simulations are ... |
---
abstract: 'It is inevitable to train large deep learning models on a large-scale cluster equipped with accelerators system. Deep gradient compression would highly increase the bandwidth utilization and speed up the training process but hard to implement on ring structure. In this paper, we find that redundant gradi... |
---
abstract: 'A first order formulation for the Maxwell field in five dimensions is dimentionally reduced using the Randall-Sundrum mechanism. We will see that massive photons can not be localized on the brane.'
---
\
\
[ Instituto de Física, Universidad Nacional Autónoma de México\
Apdo. Postal 20-364, 01000 México ... |
---
abstract: 'We propose a definition of equivariant (with respect to an Iwahori subgroup) $K$-theory of the formal power series model ${\mathbf{Q}_{G}}$ of semi-infinite flag manifold and prove the Pieri-Chevalley formula, which describes the product, in the $K$-theory of ${\mathbf{Q}_{G}}$, of the structure sheaf of... |
Electron acceleration driven by high-power lasers has attracted much effort, since it could lead to the development of compact electron accelerators. Such devices are expected to be useful in many applications, ranging from coherent X-ray generation [@nakajima08_naturephys; @schlenvoigt08_naturephys] to electron diffra... |
---
abstract: 'We give a procedure that can be used to automatically satisfy invariants of a certain shape. These invariants may be written with the operations intersection, composition and converse over binary relations, and equality over these operations. We call these invariants [sentence]{}s that we interpret over ... |
---
abstract: 'We developed a strategic of optimal portfolio based on information theory and Tsallis statistics. The growth rate of a stock market is defined by using $q$-deformed functions and we find that the wealth after n days with the optimal portfolio is given by a $q$-exponential function. In this context, the a... |
---
author:
- |
Vincent De Comarmond$^1$, Robert de Mello Koch$^{1,2}$ and Katherine Jefferies$^{1}$\
$^{1}$ National Institute for Theoretical Physics,\
Department of Physics and Centre for Theoretical Physics,\
University of the Witwatersrand,\
Wits, 2050, South Africa\
\
$^{2}$Stellenbosc... |
---
abstract: 'The Tunka Radio Extension (Tunka-Rex) is an antenna array spread over an area of about 1 km$^2$. The array is placed at the Tunka Advanced Instrument for cosmic rays and Gamma Astronomy (TAIGA) and detects the radio emission of air showers in the band of 30 to 80 MHz. During the last years it was shown t... |
---
abstract: |
A combination of ground–based (NTT and VLT) and HST (HDF–N and HDF–S) public imaging surveys have been used to collect a sample of 1712 I–selected and 319 $K\leq 21$ galaxies observed with an extended spectral coverage from the U to the K band. Photometric redshifts have been obtained for all these ... |
---
abstract: 'We demonstrate high-fidelity reversible transfer of quantum information from the polarisation of photons into the spin-state of an electron-hole pair in a semiconductor quantum dot. Moreover, spins are electrically manipulated on a sub-nanosecond timescale, allowing us to coherently control their evoluti... |
---
abstract: 'We study the scaling regimes for the Kardar–Parisi–Zhang equation with noise correlator $R(q)\propto (1 + w \, q^{-2 \rho})$ in Fourier space, as a function of $\rho$ and the spatial dimension $d$. By means of a stochastic Cole–Hopf transformation, the critical and correction-to-scaling exponents at the ... |
---
abstract: 'In this paper, a notion of affine walled Brauer-Clifford superalgebras $BC_{r, t}^{\rm aff} $ is introduced over an arbitrary integral domain $R$ containing $2^{-1}$. These superalgebras can be considered as affinization of walled Brauer superalgebras in [@JK]. By constructing infinite many homomorphisms... |
---
abstract: 'A minimalistic cognitive architecture called MANIC is presented. The MANIC architecture requires only three function approximating models, and one state machine. Even with so few major components, it is theoretically sufficient to achieve functional equivalence with all other cognitive architectures, and... |
---
author:
- |
\
Physics Department,INFN,Rome University 1,Italy\
E-mail:
title: 'Upward and Horizontal $\tau$ Airshowers by UHE Neutrinos'
---
It is well known that Ultra High Energy $UHE$ neutrino of astrophysical origin above tens TeV might overcome the nearby noise vertical of secondary atmospheric ne... |
Since Gaitan’s seminal work [@gaitan90; @gaitan92], significant advances have been made in our understanding of single-bubble sonoluminescence (SL). The dissociation hypothesis (DH) introduced by Lohse [*et al. *]{}[@lohse97] combines the merits of an intuitive approach based on the relatively tractable Rayleigh-Plesse... |
---
abstract: 'A scheme for making [*ab-initio*]{} calculations of the dynamic paramagnetic spin susceptibilities of solids at finite temperatures is described. It is based on Time-Dependent Density Functional Theory and employs an electronic multiple scattering formalism. Incommensurate and commensurate anti-ferromagn... |
---
abstract: |
We consider one-dimensional stochastic differential equations with generalized drift which involve the local time $L^X$ of the solution process: $$X_t = X_0 + \int_0^t b(X_s) \, {\mbox{\upshape d}}B_s + \int_\mathbb{R} L^X(t,y) \, \nu({\mbox{\upshape d}}y)\,,$$ where $b$ is a measurable real functio... |
---
abstract: 'We simulate the time-dependent coherent dynamics of a spatially indirect exciton -an electron-hole pair with the two particles confined in different layers- in a GaAs coupled quantum well system. We use a unitary wave-packet propagation method taking into account in full the four degrees of freedom of th... |
---
abstract: 'We discuss the consequences of higher derivative Lagrangians of the form $\alpha_1 A_{\mu}(x)\dot{x}^\mu$, $\alpha_2 G_{\mu}(x)\ddot{x}^\mu$, $\alpha_3 B_{\mu}(x)\dddot{x}^\mu$, $\alpha_4 K_{\mu}(x)\ddddot{x}^\mu$, $\cdots$, $U_{(n)\mu}(x)x^{(n)\mu}$ in relativistic theory. After establishing the equatio... |
---
abstract: 'In the last ten years, increasing attention has been devoted to Extended Theories of Gravity with the aim to understand several cosmological and astrophysical issues such as the today observed accelerated expansion of the universe and the presence of Dark Matter in self-gravitating structures. Some of th... |
---
abstract: 'Reconstruction of articulatory trajectories from the acoustic speech signal has been proposed for improving speech recognition and text-to-speech synthesis. However, to be useful in these settings, articulatory reconstruction must be speaker independent. Furthermore, as most research focuses on single, s... |
---
abstract: 'Bright, short duration X-ray flares from accreting compact objects produce thin, dust scattering rings that enable dust echo tomography: high precision distance measurements and mapping of the line-of-sight distribution of dust. This work looks to the past activity of X-ray transient outbursts in order t... |
---
abstract: |
PG 1002+506 is found to be a Be star, one of two so far found by the Palomar-Green survey. Its spectrum is classified as a B$5\pm 1$ Ve, with $T_{\rm eff} = 14,900 \pm 1200,$ $\log g = 4.2 \pm 0.2,$ and $v \sin i =
340 \pm 50$ km s$^{-1}.$ At $b = +51^{\circ},$ its height above the Galactic plan... |
---
abstract: 'The normal state behaviour of the density of states of the electrons described by the BOSON - FERMION model for Bose-Einstein condensation driven superconductivity is characterized by the appearence of a pseudogap which developes into a true gap upon lowering the temperature and the superconducting criti... |
---
abstract: 'We discuss the behavior of fidelity for a classically chaotic quantum system in the metallic regime. We show the existence of a critical value of the perturbation below which the exponential decay of fidelity is determined by the width of the Breit-Wigner distribution and above which the quantum decay fo... |
---
abstract: |
The dependence of the magnetic ordering temperature $T_{\text{o}}$ of Sm metal was determined through four-point electrical resistivity measurements to pressures as high as 150 GPa. A strong increase in $T_{\text{o}}$ with pressure is observed above 85 GPa. In this pressure range Sm ions alloyed in ... |
---
abstract: 'A family $\mathcal{F}$ is $t$-$\it{intersecting}$ if any two members have at least $t$ common elements. Erdős, Ko, and Rado [@EKR] proved that the maximum size of a $t$-intersecting family of subsets of size $k$ is equal to $ {{n-t} \choose {k-t}}$ if $n\geq n_0(k,t)$. Alon, Aydinian, and Huang [@ALON] c... |
---
abstract: 'We use our recently proposed microscopic modeling in the framework of linear response theory to investigate the complete phonon dispersion, the phonon density of states, certain phonon-induced electronic charge distributions and charge fluctuations (CF’s) for anomalous soft modes of metallic BaBiO$_{3}$ ... |
---
abstract: 'Contextual word embeddings such as BERT have achieved state of the art performance in numerous NLP tasks. Since they are optimized to capture the statistical properties of training data, they tend to pick up on and amplify social stereotypes present in the data as well. In this study, we (1) propose a te... |
---
author:
- Jarosław Kijak
- Janusz Gil
date: 'Received 19 November 2001 / Accepted 30 May 2002'
title: 'Structure of pulsar beams: conal versus patchy'
---
Introduction
============
One of the important questions in pulsar research is what the overall structure of the mean pulsar beam is and how this structure is ... |
---
abstract: 'We discuss lepton flavor violation (LFV) associated with tau leptons in the general framework of the two Higgs doublet model, in which LFV couplings are introduced as a deviation from Model II Yukawa interaction. Parameters of the model are constrained from experimental results and also from requirements... |
---
abstract: 'We introduce a notion of quantum function, and develop a compositional framework for finite quantum set theory based on a $2$-category of quantum sets and quantum functions. We use this framework to formulate a $2$-categorical theory of quantum graphs, which captures the quantum graphs and quantum graph ... |
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