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Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: On the Usage of Psychophysiological Data in Software Engineering: An Extended Systematic Mapping Study

cs.SE

cs.CY cs.AI cs.CL cs.LG

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: One-parameter supersymmetric Hamiltonians in momentum space Recent results on the one-parameter supersymmetric deformation in momentum space by Curtright and Zachos (2014 J. Phys. A: Math. and Theor. 47 145201; arXiv:1311.6147v2) are presented in a more general framework following our own papers. We extend the analysis of Curtright and Zachos by including the supersymmetric partner one-parameter deformation

math-ph math.MP

cs.IT math.IT math.OC

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Controlling Synthetic Spin-Orbit Coupling in a Silicon Quantum Dot with Magnetic Field

cond-mat.mes-hall

cs.CE cs.MS hep-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Deep Inelastic Structure Functions at two Loops We present the analytic calculation of the Mellin moments of the structure functions F_2, F_3 and F_L in perturbative QCD up to second order corrections and in leading twist approximation. We calculate the 2-loop contributions to the anomalous dimensions of the singlet and non-singlet operator matrix elements and the 2-loop coefficient functions of F_2, F_3 and F_L. We perform the inverse Mellin transformation analytically and find our results in agreement with earlier calculations in the literature by Zijlstra and van Neerven.

hep-ph

astro-ph.SR astro-ph.GA astro-ph.HE gr-qc nucl-th

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Distributed Nonconvex Multiagent Optimization Over Time-Varying Networks

cs.DC cs.SY math.OC

cs.DS math.FA math.OC quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: NLO QCD corrections to off-shell ttbar production at hadron colliders The production of top-antitop-quark pairs at hadron colliders is interesting both in its own right as signal process, but also as background to many searches for new physics. The corresponding predictions aim at the precision level of few per cent, rendering not only the inclusion of radiative corrections of the strong and electroweak interactions relevant, but also of off-shell and finite-width effects originating from the top-quark decays t -> b W -> b l \nu_l / qq'. We report on a calculation for the full process pp -> W^+ W^- b \bar{b} -> \nu_e e^+ \mu^- \nu_\mu b \bar{b} at next-to-leading order QCD and discuss the effects of the finite widths of the top quarks and of the W bosons for selected observables. Generically it turns out that finite-top-width effects are at the per-cent level whenever the top-quark resonances dominate, but those effects can reach tens of per cent in off-shell tails. Finite-W-width effects, on the other hand, are suppressed to less than 0.5% whenever the top quarks can become resonant and only become sizeable in exceptional cases. One such case, however, is the invariant mass of a bottom quark and the corresponding charged lepton, which result from the same top-quark decay - an observable that is relevant for precision measurements of the top-quark mass.

hep-ph

cond-mat.soft cond-mat.stat-mech physics.bio-ph q-bio.CB

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: The Hubble constant from $^{56}$Co-powered Nebular Candles

astro-ph

cond-mat.str-el cond-mat.mes-hall cond-mat.other cond-mat.stat-mech quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Indirect detection of Cosmological Constant from interacting open quantum system We study the indirect detection of Cosmological Constant from an open quantum system of interacting spins, weakly interacting with a thermal bath, a massless scalar field minimally coupled with the static de Sitter background, by computing the spectroscopic shifts. By assuming pairwise interaction between spins, we construct states using a generalisation of the superposition principle. The corresponding spectroscopic shifts, caused by the effective Hamiltonian of the system due to Casimir Polder interaction, are seen to play a crucial role in predicting a very tiny value of the Cosmological Constant, in the static patch of de Sitter space, which is consistent with the observed value from the Planck measurements of the cosmic microwave background (CMB) anisotropies.

hep-th cond-mat.stat-mech gr-qc hep-ph quant-ph

quant-ph cond-mat.quant-gas gr-qc

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Can Computers overcome Humans? Consciousness interaction and its implications

cs.AI q-bio.NC

nlin.CD math.NA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: CANDELS: The correlation between galaxy morphology and star formation activity at z~2 We discuss the state of the assembly of the Hubble Sequence in the mix of bright galaxies at redshift 1.4< z \le 2.5 with a large sample of 1,671 galaxies down to H_{AB}~26, selected from the HST/ACS and WFC3 images of the GOODS--South field obtained as part of the GOODS and CANDELS observations. We investigate the relationship between the star formation properties and morphology using various parametric diagnostics, such as the Sersic light profile, Gini (G), M_{20}, Concentration (C), Asymmetry (A) and multiplicity parameters. Our sample clearly separates into massive, red and passive galaxies versus less massive, blue and star forming ones, and this dichotomy correlates very well with the galaxies' morphological properties. Star--forming galaxies show a broad variety of morphological features, including clumpy structures and bulges mixed with faint low surface brightness features, generally characterized by disky-type light profiles. Passively evolving galaxies, on the other hand, very often have compact light distribution and morphology typical of today's spheroidal systems. We also find that artificially redshifted local galaxies have a similar distribution with z~2galaxies in a G-M_{20} plane. Visual inspection between the rest-frame optical and UV images show that there is a generally weak morphological k-correction for galaxies at z~2, but the comparison with non-parametric measures show that galaxies in the rest-frame UV are somewhat clumpier than rest-frame optical. Similar general trends are observed in the local universe among massive galaxies, suggesting that the backbone of the Hubble sequence was already in place at z~2.

astro-ph.GA astro-ph.CO

math-ph hep-th math.GR math.MP math.RA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Closures in Formal Languages and Kuratowski's Theorem

cs.CC cs.FL

math.DS nlin.CD nlin.PS

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Quantile Mechanics II: Changes of Variables in Monte Carlo methods and GPU-Optimized Normal Quantiles This article presents differential equations and solution methods for the functions of the form $Q(x) = F^{-1}(G(x))$, where $F$ and $G$ are cumulative distribution functions. Such functions allow the direct recycling of Monte Carlo samples from one distribution into samples from another. The method may be developed analytically for certain special cases, and illuminate the idea that it is a more precise form of the traditional Cornish-Fisher expansion. In this manner the model risk of distributional risk may be assessed free of the Monte Carlo noise associated with resampling. Examples are given of equations for converting normal samples to Student t, and converting exponential to hyperbolic, variance gamma and normal. In the case of the normal distribution, the change of variables employed allows the sampling to take place to good accuracy based on a single rational approximation over a very wide range of the sample space. The avoidance of any branching statement is of use in optimal GPU computations as it avoids the effect of {\it warp divergence}, and we give examples of branch-free normal quantiles that offer performance improvements in a GPU environment, while retaining the best precision characteristics of well-known methods. We also offer models based on a low-probability of warp divergence. Comparisons of new and old forms are made on the Nvidia Quadro 4000, GTX 285 and 480, and Tesla C2050 GPUs. We argue that in single-precision mode, the change-of-variables approach offers performance competitive with the fastest existing scheme while substantially improving precision, and that in double-precision mode, this approach offers the most GPU-optimal Gaussian quantile yet, and without compromise on precision for Monte Carlo applications, working twice as fast as the CUDA 4 library function with increased precision.

q-fin.CP q-fin.RM q-fin.ST stat.AP stat.CO

q-bio.PE cs.DM math.PR

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Addendum to "Coarse homology theories"

math.AT

cond-mat.mtrl-sci cond-mat.stat-mech physics.class-ph physics.comp-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: The Role of Helicity in Magnetic Reconnection: 3D Numerical Simulations We demonstrate that conservation of global helicity plays only a minor role in determining the nature and consequences of magnetic reconnection in the solar atmosphere. First, we show that observations of the solar coronal magnetic field are in direct conflict with Taylor's theory. Next, we present results from three-dimensional MHD simulations of the shearing of bipolar and multi-polar coronal magnetic fields by photospheric footpoint motions, and discuss the implications of these results for Taylor's theory and for models of solar activity. The key conclusion of this work is that significant magnetic reconnection occurs only at very specific locations and, hence, the Sun's magnetic field cannot relax completely down to the minimum energy state predicted by conservation of global helicity.

astro-ph

cs.LG eess.SP math.DS physics.data-an

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Fidelity susceptibility in Gaussian Random Ensembles

cond-mat.dis-nn cond-mat.stat-mech math-ph math.MP quant-ph

physics.space-ph astro-ph cond-mat.mtrl-sci

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: An Algebraic Specification of the Semantic Web We present a formal specification of the Semantic Web, as an extension of the World Wide Web using the well known algebraic specification language CafeOBJ. Our approach allows the description of the key elements of the Semantic Web technologies, in order to give a better understanding of the system, without getting involved with their implementation details that might not yet be standardized. This specification is part of our work in progress concerning the modeling the Social Semantic Web.

cs.LO

astro-ph.EP physics.atm-clus physics.space-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Born-Infeld Kinematics and Correction to the Thomas Precession

hep-th gr-qc

hep-th cond-mat.mtrl-sci cond-mat.soft

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Time-dependent injection strategies and interfacial stability in multi-layer Hele-Shaw and porous media flows We study the stability of multi-layer radial flows in porous media within the Hele-Shaw model. We perform a linear stability analysis for radial flows consisting of an arbitrary number of fluid layers with interfaces separating fluids of constant viscosity and with positive viscosity jump at each interface in the direction of flow. Several different time-dependent injection strategies are analyzed including the maximal injection rate that maintains a stable flow. We find numerically that flows with more fluid layers can be stable with faster time-dependent injection rates than comparable flows with fewer fluid layers. In particular, the injection rate for a stable flow increases at a rate that is proportional to the number of interfaces to the two-thirds power for large times. Additionally, we show that in any multi-layer radial Hele-Shaw flow, if all of the interfaces are circular except for one perturbed interface then there exists a time-dependent injection rate such that the circular interfaces remain circular as they propagate and the disturbance on the perturbed interface decays. The motion of the interfaces within linear theory is also investigated numerically for the case of constant injection rates. It is found that: (i) A disturbance of one interface can be transferred to the other interface(s); (ii) The disturbances on the interfaces can develop either in phase or out of phase from any arbitrary initial disturbance; and (iii) The dynamics of the flow can change dramatically with the addition of more interfaces.

physics.flu-dyn

cs.NE cs.AI cs.PL

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Extensions of stability selection using subsamples of observations and covariates

stat.ME stat.CO stat.ML

cond-mat.stat-mech cond-mat.quant-gas nlin.SI physics.flu-dyn physics.plasm-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Strong photon non-linearities and photonic Mott insulators We show, that photon non-linearities in electromagnetically induced transparency can be at least one order of magnitude larger than predicted in all previous approaches. As an application we demonstrate that, in this regime they give rise to very strong photon - photon interactions which are strong enough to make an experimental realization of a photonic Mott insulator state feasible in arrays of coupled ultra high-Q micro-cavities.

quant-ph cond-mat.other

cs.LG cs.ET math.AG quant-ph stat.ML

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Effect of Quasiparticles Injection on the AC Response of a Superconductor

cond-mat.supr-con

physics.atm-clus cond-mat physics.chem-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: On the Presence of a Universal Acceleration Scale in Elliptical Galaxies Dark matter phenomena in rotationally supported galaxies exhibit a characteristic acceleration scale of $g_\dagger \approx 1.2\times 10^{-10}$ m s$^{-2}$. Whether this acceleration is a manifestation of a universal scale, or merely an emergent property with an intrinsic scatter, has been debated in the literature. Here we investigate whether a universal acceleration scale exists in dispersion-supported galaxies using two uniform sets of integral field spectroscopy (IFS) data from SDSS-IV MaNGA and ATLAS$^{\rm 3D}$. We apply the spherical Jeans equation to 15 MaNGA and 4 ATLAS$^{\rm 3D}$ slow-rotator E0 (i.e., nearly spherical) galaxies. Velocity dispersion profiles for these galaxies are well determined with observational errors under control. Bayesian inference indicates that all 19 galaxies are consistent with a universal acceleration of $g_\dagger=1.5_{-0.6}^{+0.9}\times 10^{-10}$ m s$^{-2}$. Moreover, all 387 data points from the radial bins of the velocity dispersion profiles are consistent with a universal relation between the radial acceleration traced by dynamics and that predicted by the observed distribution of baryons. This universality remains if we include 12 additional non-E0 slow-rotator elliptical galaxies from ATLAS$^{\rm 3D}$. Finally, the universal acceleration from MaNGA and ATLAS$^{\rm 3D}$ is consistent with that for rotationally supported galaxies, so our results support the view that dark matter phenomenology in galaxies involves a universal acceleration scale.

astro-ph.GA astro-ph.CO gr-qc hep-th

cs.SE cs.DC cs.NI cs.SY

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Pion Loop Contribution to the Electromagnetic Pion Charge Radius

hep-ph nucl-th

physics.data-an hep-lat nucl-ex nucl-th

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Smallness of Leptonic $\theta_{13}$ and Discrete Symmetry The leptonic mixing angle $\theta_{13}$ is known to be small. If it is indeed tiny, the simplest explanation is that charged leptons mix only in the $\mu-\tau$ sector and neutrinos only in the 1-2 sector. We show that this pattern may be explained by the discrete symmetry $Z_2 \times Z_2$ of a complete Lagrangian, which has 2 Higgs doublets and 2 Higgs triplets (or 2 heavy right-handed singlet neutrinos). In the case of Higgs triplets, the Majorana neutrino masses are arbitrary, whereas in the case of heavy singlet neutrinos, an inverted hierarchy is predicted. Lepton-Flavor-Violation effects, present only in the $\mu-\tau$ sector, are analyzed in detail: the LFV $\tau$-decay rates are predicted below the present bounds by a few orders of magnitude, whereas LFV Higgs decays could allow for a direct test of the model.

hep-ph

stat.ML cs.DC cs.DS cs.LG stat.CO

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: On Axiomatization of Probabilistic Conditional Independencies

cs.AI

math.SP math.AG math.DG

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: A spinorial analogue of the Brezis-Nirenberg theorem involving the critical Sobolev exponent Let $(M,\textit{g},\sigma)$ be a compact Riemannian spin manifold of dimension $m\geq2$, let $\mathbb{S}(M)$ denote the spinor bundle on $M$, and let $D$ be the Atiyah-Singer Dirac operator acting on spinors $\psi:M\to\mathbb{S}(M)$. We study the existence of solutions of the nonlinear Dirac equation with critical exponent \[ D\psi = \lambda\psi + f(|\psi|)\psi + |\psi|^{\frac2{m-1}}\psi \tag{NLD} \] where $\lambda\in\mathbb{R}$ and $f(|\psi|)\psi$ is a subcritical nonlinearity in the sense that $f(s)=o\big(s^{\frac2{m-1}}\big)$ as $s\to\infty$. A model nonlinearity is $f(s)=\alpha s^{p-2}$ with $2<p<\frac{2m}{m-1}$, $\alpha\in\mathbb{R}$. In particular we study the nonlinear Dirac equation \[ D\psi=\lambda\psi+|\psi|^{\frac2{m-1}}\psi, \quad \lambda\in\mathbb{R}. \tag{BND} \] This equation is a spinorial analogue of the Brezis-Nirenberg problem. As corollary of our main results we obtain the existence of least energy solutions $(\lambda,\psi)$ of (BND) and (NLD) for every $\lambda>0$, even if $\lambda$ is an eigenvalue of $D$. For some classes of nonlinearities $f$ we also obtain solutions of (NLD) for every $\lambda\in\mathbb{R}$, except for non-positive eigenvalues. If $m\not\equiv3$ (mod 4) we obtain solutions of (NLD) for every $\lambda\in\mathbb{R}$, except for a finite number of non-positive eigenvalues. In certain parameter ranges we obtain multiple solutions of (NLD) and (BND), some near the trivial branch, others away from it. The proofs of our results are based on variational methods using the strongly indefinite energy functional associated to (NLD).

math.DG

cs.DL cs.CL cs.IR

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Time-of-flight Fourier UCN spectrometer

physics.ins-det nucl-ex

cs.PF cs.IT cs.NI cs.SY math.IT

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Completion of the Ablowitz-Kaup-Newell-Segur integrable coupling Integrable couplings are associated with non-semisimple Lie algebras. In this paper, we propose a new method to generate new integrable systems through making perturbation in matrix spectral problems for integrable couplings, which is called the `completion process of integrable couplings'. As an example, the idea of construction is applied to the Ablowitz-Kaup-Newell-Segur integrable coupling. Each equation in the resulting hierarchy has a bi-Hamiltonian structure furnished by the component-trace identity.

nlin.SI

cond-mat astro-ph physics.geo-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Convolutive Transfer Function Invariant SDR training criteria for Multi-Channel Reverberant Speech Separation

cs.SD eess.AS

hep-th math-ph math.MP nlin.SI physics.optics quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Room temperature magnetization switching in topological insulator-ferromagnet heterostructures by spin-orbit torques Topological insulators (TIs) with spin momentum locked topological surface states (TSS) are expected to exhibit a giant spin-orbit torque (SOT) in the TI/ferromagnet systems. To date, the TI SOT driven magnetization switching is solely reported in a Cr doped TI at 1.9 K. Here, we directly show giant SOT driven magnetization switching in a Bi2Se3/NiFe heterostructure at room temperature captured using a magneto-optic Kerr effect microscope. We identify a large charge to spin conversion efficiency of ~1-1.75 in the thin TI films, where the TSS is dominant. In addition, we find the current density required for the magnetization switching is extremely low, ~6x10^5 A cm-2, which is one to two orders of magnitude smaller than that with heavy metals. Our demonstration of room temperature magnetization switching of a conventional 3d ferromagnet using Bi2Se3 may lead to potential innovations in TI based spintronic applications.

cond-mat.mtrl-sci cond-mat.mes-hall

cond-mat.stat-mech cond-mat.quant-gas cond-mat.str-el nlin.SI

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: On parity check collections for iterative erasure decoding that correct all correctable erasure patterns of a given size

cs.IT cs.DM math.IT

astro-ph.EP gr-qc

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Path integral evaluation of the one-loop effective potential in field theory of diffusion-limited reactions The well-established effective action and effective potential framework from the quantum field theory domain is adapted and successfully applied to classical field theories of the Doi and Peliti type for diffusion controlled reactions. Through a number of benchmark examples, we show that the direct calculation of the effective potential in fixed space dimension $d=2$ to one-loop order reduces to a small set of simple elementary functions, irrespective of the microscopic details of the specific model. Thus the technique, which allows one to obtain with little additional effort, the potentials for a wide variety of different models, represents an important alternative to the standard model dependent diagram-based calculations. The renormalized effective potential, effective equations of motion and the associated renormalization group equations are computed in $d=2$ spatial dimensions for a number of single species field theories of increasing complexity.

cond-mat.stat-mech hep-th

math.FA math.AP physics.plasm-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: A microstructural model of tendon failure

q-bio.TO

cs.IT cs.CR cs.MM math.IT

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Contrastive Explanation: A Structural-Model Approach This paper presents a model of contrastive explanation using structural casual models. The topic of causal explanation in artificial intelligence has gathered interest in recent years as researchers and practitioners aim to increase trust and understanding of intelligent decision-making. While different sub-fields of artificial intelligence have looked into this problem with a sub-field-specific view, there are few models that aim to capture explanation more generally. One general model is based on structural causal models. It defines an explanation as a fact that, if found to be true, would constitute an actual cause of a specific event. However, research in philosophy and social sciences shows that explanations are contrastive: that is, when people ask for an explanation of an event -- the fact -- they (sometimes implicitly) are asking for an explanation relative to some contrast case; that is, "Why P rather than Q?". In this paper, we extend the structural causal model approach to define two complementary notions of contrastive explanation, and demonstrate them on two classical problems in artificial intelligence: classification and planning. We believe that this model can help researchers in subfields of artificial intelligence to better understand contrastive explanation.

cs.AI

astro-ph physics.ao-ph physics.flu-dyn physics.geo-ph physics.plasm-ph physics.space-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Pacific shallow lagoon high-resolution temperature observations

physics.ao-ph

dg-ga math-ph math.DG math.MP quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Explicitly disentangling image content from translation and rotation with spatial-VAE Given an image dataset, we are often interested in finding data generative factors that encode semantic content independently from pose variables such as rotation and translation. However, current disentanglement approaches do not impose any specific structure on the learned latent representations. We propose a method for explicitly disentangling image rotation and translation from other unstructured latent factors in a variational autoencoder (VAE) framework. By formulating the generative model as a function of the spatial coordinate, we make the reconstruction error differentiable with respect to latent translation and rotation parameters. This formulation allows us to train a neural network to perform approximate inference on these latent variables while explicitly constraining them to only represent rotation and translation. We demonstrate that this framework, termed spatial-VAE, effectively learns latent representations that disentangle image rotation and translation from content and improves reconstruction over standard VAEs on several benchmark datasets, including applications to modeling continuous 2-D views of proteins from single particle electron microscopy and galaxies in astronomical images.

cs.CV cs.LG q-bio.QM

astro-ph.HE physics.flu-dyn physics.plasm-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Separation of variables for the quantum SL(2,R) spin chain

hep-th math.QA nlin.SI

cs.LG cs.AI cs.NE cs.SI

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Second Moment Boundedness of Linear Stochastic Delay Differential Equations This paper studies the second moment boundedness of solutions of linear stochastic delay differential equations. First, we give a framework, for general $\mathrm{N}$-dimensional linear stochastic differential equations with a single discrete delay, of calculating the characteristic function for the second moment boundedness. Next, we apply the proposed framework to a special case of a type of 2-dimensional equation that the stochastic terms are decoupled. For the 2-dimensional equation, we obtain the characteristic function explicitly given by equation coefficients, the characteristic function gives sufficient conditions for the second moment to be bounded or unbounded.

math.ST math.DS stat.TH

cs.CY cs.AI cs.LG stat.AP

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Reviewing continual learning from the perspective of human-level intelligence

cs.LG cs.AI cs.NE

astro-ph.HE physics.plasm-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Hybrid Microwave-Cavity Heat Engine We propose and analyze the use of hybrid microwave cavities as quantum heat engines. A possible realization consists of two macroscopically separated quantum dot conductors coupled capacitively to the fundamental mode of a microwave cavity. We demonstrate that an electrical current can be induced in one conductor through cavity-mediated processes by heating up the other conductor. The heat engine can reach Carnot efficiency with optimal conversion of heat to work. When the system delivers the maximum power, the efficiency can be a large fraction of the Carnot efficiency. The heat engine functions even with moderate electronic relaxation and dephasing in the quantum dots. We provide detailed estimates for the electrical current and output power using realistic parameters.

cond-mat.mes-hall quant-ph

math.AP math-ph math.DG math.FA math.MP math.SP

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Conceptual Metaphors Impact Perceptions of Human-AI Collaboration

cs.HC cs.AI

math.QA math.AG math.NT math.OA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Poisson Statistics for the Largest Eigenvalues of Wigner Random Matrices with Heavy Tails We study large Wigner random matrices in the case when the marginal distributions of matrix entries have heavy tails. We prove that the largest eigenvalues of such matrices have Poisson statistics.

math.PR math-ph math.MP

stat.ML cs.DC math.OC stat.ME

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: A massive exoplanet candidate around KOI-13: Independent confirmation by ellipsoidal variations

astro-ph.EP

gr-qc astro-ph.HE physics.data-an

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: A procedure for calculating the many-particle Bohm quantum potential In a recent work, M.Kohout (M.Kohout, Int.J.Quant.Chem. 87, 12 2002) raised the important question of how to make a correct use of Bohm's approach for defining a quantum potential. In this work, by taking into account Kohout's results, we propose a general self-consistent iterative procedure for solving this problem.

quant-ph

cs.IT cs.NE math.IT math.OC

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: XMM-Newton study of 30 Dor C and a newly identified MCSNR J0536-6913 in the Large Magellanic Cloud

astro-ph.HE

cs.DB cs.DS cs.IR cs.LG

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Jackiw-Rebbi zero modes in non-uniform topological insulator nanowire We theoretically investigate the emergence of Jackiw-Rebbi zero modes and their conductance signature in non-uniform topological insulator nano-wires. We modelled the non-uniform nano-wires as junction between two cylindrical nano-wires with different radius. In the limit of wire length being much larger than its radius, the surface state of the nanowire splits into one dimensional Dirac modes propagating along the axis of the cylinder owing to radial confinement. The sign of the mass gap in each of these Dirac mode is decided by angular momentum quantum number corresponding to the rotational motion of the electron about the axis of the cylindrical. Application of an external magnetic flux through the cylindrical nanowires enables us to tune the mass gap from positive to negative value across the junction. Due to this flux tunable band inversion, controlled by the external magnetic filed, Jackiw-Rebbi zero modes can be made to appear or disappear at the junction. We compute differential conductance of our topological insulator nanowire junction and show that a quantized conductance peak appears at zero-energy (zero-bias) in the presence of the Jackiw-Rebbi mode.

cond-mat.mes-hall

cs.SY q-bio.QM

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Quantization of coboundary Lie bialgebras

math.QA

q-bio.QM physics.soc-ph q-bio.MN

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Robust measurement of wave function topology on NISQ quantum computers Topological quantum phases of quantum materials are defined through their topological invariants. These topological invariants are quantities that characterize the global geometrical properties of the quantum wave functions and thus are immune to local noise. Here, we present a strategy to measure topological invariants on quantum computers. We show that our strategy can be easily integrated with the variational quantum eigensolver (VQE) so that the topological properties of generic quantum many-body states can be characterized on current quantum hardware. We demonstrate two explicit examples that show how the Chern number can be measured exactly; that is, it is immune to the noise of NISQ machines. This work shows that the robust nature of wave function topology allows NISQ machines to determine topological invariants accurately.

quant-ph cond-mat.other

q-bio.QM cond-mat.stat-mech cs.IT math.DS math.IT nlin.AO q-bio.MN

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Comments on Frequency Diverse Array Antenna Using Time-Modulated Optimized Frequency Offset to Obtain Time-Invariant Spatial Fine Focusing Beampattern

eess.SP

math.RT math.CA math.QA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Equivalence among different formalisms in the Tsallis entropy framework In a recent paper [Phys. Lett. A {\bf335}, 351 (2005)] the authors discussed the equivalence among the various probability distribution functions of a system in equilibrium in the Tsallis entropy framework. In the present letter we extend these results to a system which is out of equilibrium and evolves to a stationary state according to a nonlinear Fokker-Planck equation. By means of time-scale conversion, it is shown that there exists a ``correspondence'' among the self-similar solutions of the nonlinear Fokker-Planck equations associated with the different Tsallis formalisms. The time-scale conversion is related to the corresponding Lyapunov functions of the respective nonlinear Fokker-Planck equations.

cond-mat.stat-mech

eess.SP cs.IR cs.LG cs.NE stat.ML

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Massive sigma models with (p,q) supersymmetry

hep-th

cond-mat.stat-mech cond-mat.dis-nn cond-mat.other cond-mat.soft math-ph math.MP nlin.SI

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Eccentricities and Inclinations of Multi-Planet Systems with External Perturbers Compact multi-planet systems containing super-Earths or sub-Neptunes, commonly found around solar-type stars, may be surrounded by external giant planet or stellar companions, which can shape the architechture and observability of the inner systems. We present a comprehensive study on the evolution of the inner planetary system subject to the gravitational influence of an eccentric, misaligned outer perturber. Analytic results are derived for the inner planet eccentricities ($e_i$) and mutual inclination ($\theta_{12}$) of the "2-planet + perturber" system, calibrated with numerical secular and N-body integrations, as a function of the perturber mass $m_p$, semi-major axis $a_p$ and inclination angle $\theta_p$. We find that the dynamics of the inner system is determined by the dimensionless parameter $\epsilon_{12}$, given by the ratio between the differential precession rate driven by the perturber and the mutual precession rate of the inner planets. Loosely packed systems (corresponding to $\epsilon_{12} \gg 1$) are more susceptible to eccentricity/inclination excitations by the perturber than tightly packed inner systems (with $\epsilon_{12} \ll 1$) (or singletons), although resonance may occur around $\epsilon_{12}\sim 1$, leading to large $e_i$ and $\theta_{12}$. Dynamical instability may set in for inner planet systems with large excited eccentricities and mutual inclinations. We present a formalism to extend our analytical results to general inner systems with $N>2$ planets and apply our results to constrain possible external companions to the Kepler-11 system. Eccentricity and inclination excitation by external companions may help explain the observational trend that systems with fewer transiting planets are dynamically hotter than those with more transiting planets.

astro-ph.EP

nlin.SI math-ph math.MP math.QA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Simulations of multicomponent relativistic thermalization

cond-mat.stat-mech astro-ph.CO

math.QA hep-th math-ph math.AT math.GT math.MP

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Online Community Detection for Event Streams on Networks A common goal in network modeling is to uncover the latent community structure present among nodes. For many real-world networks, observed connections consist of events arriving as streams, which are then aggregated to form edges, ignoring the temporal dynamic component. A natural way to take account of this temporal dynamic component of interactions is to use point processes as the foundation of the network models for community detection. Computational complexity hampers the scalability of such approaches to large sparse networks. To circumvent this challenge, we propose a fast online variational inference algorithm for learning the community structure underlying dynamic event arrivals on a network using continuous-time point process latent network models. We provide regret bounds on the loss function of this procedure, giving theoretical guarantees on performance. The proposed algorithm is illustrated, using both simulation studies and real data, to have comparable performance in terms of community structure in terms of community recovery to non-online variants. Our proposed framework can also be readily modified to incorporate other popular network structures.

cs.SI cs.LG stat.ML

physics.pop-ph gr-qc physics.gen-ph quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Towards Blended Reactive Planning and Acting using Behavior Trees

cs.RO cs.AI

math.GR math.AC math.DS math.RA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Thermodynamical Bethe Ansatz analysis in an SU(2)xU(1) symmetric sigma-model Four different types of free energies are computed by both thermodynamical Bethe Ansatz (TBA) techniques and by weak coupling perturbation theory in an integrable one-parameter deformation of the O(4) principal chiral sigma-model (with SU(2)xU(1) symmetry). The model exhibits both `fermionic' and `bosonic' type free energies and in all cases the perturbative and the TBA results are in perfect agreement, strongly supporting the correctness of the proposed S matrix. The mass gap is also computed in terms of the Lambda parameters of the modified minimal substraction scheme and a lattice regularized version of the model.

hep-th

math.CO math.ST physics.soc-ph stat.TH

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: A constructive approach to Schaeffer's conjecture

math.NA

eess.SY cs.GT cs.MA cs.RO cs.SY

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Multipair DC-Josephson Resonances in a biased all-superconducting Bijunction An all-superconducting bijunction consists of a central superconductor contacted to two lateral superconductors, such that non-local crossed Andreev reflection is operating. Then new correlated transport channels for the Cooper pairs appear in addition to those of separated conventional Joseph- son junctions. We study this system in a configuration where the superconductors are connected through gate-controllable quantum dots. Multipair phase-coherent resonances and phase-dependent multiple Andreev reflections are both obtained when the voltages of the lateral superconductors are commensurate, and they add to the usual local dissipative transport due to quasiparticles. The two-pair resonance (quartets) as well as some other higher order multipair resonances are {\pi}-shifted at low voltage. Dot control can be used to dramatically enhance the multipair current when the voltages are resonant with the dot levels.

cond-mat.mes-hall cond-mat.supr-con

eess.IV cs.CV math.FA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Multi-Beam Graded Dielectric Lens Antenna from Multi-Material 3D Printing

physics.app-ph

cond-mat.stat-mech cond-mat.other hep-th

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Quantifying Tripartite Spatial and Energy-Time Entanglement in Nonlinear Optics In this work, we provide a means to quantify genuine tripartite entanglement in arbitrary (pure and mixed) continuous-variable states as measured by the Tripartite Entanglement of formation -- a resource-based measure quantifying genuine multi-partite entanglement in units of elementary Greenberger-Horne-Zeilinger (GHZ) states called gebits. Furthermore, we predict its effectiveness in quantifying the tripartite spatial and energy-time entanglement in photon triplets generated in cascaded spontaneous parametric down-conversion (SPDC), and find that ordinary nonlinear optics can be a substantial resource of tripartite entanglement.

quant-ph physics.optics

nlin.CD math-ph math.DS math.MP nlin.SI

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Gevrey stability of hydrostatic approximate for the Navier-Stokes equations in a thin domain

math.AP

math.PR cs.IT math.IT math.NA math.OC math.SP

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Hermite functions with discontinuous coefficients for the solution of fractal diffusion retrospective problems In this article we study the retrospective inverse problem. The retrospective inverse problem consists of in the reconstruction of a priori unknown initial condition of the dynamic system from its known final condition. Existence and uniqueness of the solution is proved.

math.CA

nlin.CG cs.IT math.DS math.IT

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Violable Contracts and Governance for Blockchain Applications

cs.CY cs.MA

astro-ph.SR astro-ph.IM

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Strain engineered domain structure and their relaxation in perpendicularly magnetized Co/Pt deposited on flexible polyimide The demand of fast and power efficient spintronics devices with flexibility requires additional energy for magnetization manipulation. Stress/and strain have shown their potentials for tuning magnetic properties to the desired level. Here, we report a systematic study for the effect of both tensile and compressive stresses on the magnetic anisotropy (MA). Further the effect of stress on the domain structure and magnetization relaxation mechanism in a perpendicularly magnetized Co/Pt film has been studied. It is observed that a minimal in-plane tensile strain has increased the coercivity of the film by 38$\%$ of its initial value, while a very small change of coercivity has been found under compressive strain. The size of ferromagnetic domains decreases under tensile strain, while no change is observed under the compressive strain. Magnetization relxation measured at sub-coercive fields yields longer relaxation time in the strained state.

cond-mat.mtrl-sci physics.app-ph

math.DS cs.DM math.RT

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Nucleon resonances in AdS/QCD

hep-ph

physics.ins-det nucl-ex physics.acc-ph physics.optics

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Non-archimedean valuations of eigenvalues of matrix polynomials We establish general weak majorization inequalities, relating the leading exponents of the eigenvalues of matrices or matrix polynomials over the field of Puiseux series with the tropical analogues of eigenvalues. We also show that these inequalities become equalities under genericity conditions, and that the leading coefficients of the eigenvalues are determined as the eigenvalues of auxiliary matrix polynomials.

math.SP

cs.LG cs.CE cs.NE physics.data-an

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Boosted Convolutional Neural Networks for Motor Imagery EEG Decoding with Multiwavelet-based Time-Frequency Conditional Granger Causality Analysis

cs.CV cs.HC

astro-ph.GA astro-ph.EP

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Towards Precise Pruning Points Detection using Semantic-Instance-Aware Plant Models for Grapevine Winter Pruning Automation Grapevine winter pruning is a complex task, that requires skilled workers to execute it correctly. The complexity makes it time consuming. It is an operation that requires about 80-120 hours per hectare annually, making an automated robotic system that helps in speeding up the process a crucial tool in large-size vineyards. We will describe (a) a novel expert annotated dataset for grapevine segmentation, (b) a state of the art neural network implementation and (c) generation of pruning points following agronomic rules, leveraging the simplified structure of the plant. With this approach, we are able to generate a set of pruning points on the canes, paving the way towards a correct automation of grapevine winter pruning.

cs.RO cs.CV

math.NT math-ph math.CA math.KT math.MP math.PR

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Tending Unmarked Graves: Classification of Post-mortem Content on Social Media

cs.SI cs.CY

hep-th gr-qc math.GN

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: What is the right formalism to search for resonances? II. The pentaquark chain We discuss the differences between several partial-wave analysis formalisms used in the construction of three-body decay amplitudes involving fermions. Specifically, we consider the decay Lambda_b -> psi p K- , where the hidden charm pentaquark signal has been reported. We analyze the analytical properties of the amplitudes and separate kinematical and dynamical singularities. The result is an amplitude with the minimal energy dependence compatible with the S-matrix principles.

hep-ph hep-ex nucl-th

cs.NE cs.AI cs.MA q-bio.NC

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Minimal Supersymmetric CPN Models

hep-th

quant-ph astro-ph.CO gr-qc

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Explicit Time Stepping for the Wave Equation using CutFEM with Discrete Extension In this note we develop a fully explicit cut finite element method for the wave equation. The method is based on using a standard leap frog scheme combined with an extension operator that defines the nodal values outside of the domain in terms of the nodal values inside the domain. We show that the mass matrix associated with the extended finite element space can be lumped leading to a fully explicit scheme. We derive stability estimates for the method and provide optimal order a priori error estimates. Finally, we present some illustrating numerical examples.

math.NA cs.NA

cs.SD cs.GR cs.MM eess.AS

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Radiative corrections to deep-inelastic $ed-$ scattering. Case of tensor polarized deuteron

hep-ph

math-ph chao-dyn math.DS math.MP nlin.CD nlin.PS patt-sol

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Competition Between Fractional Quantum Hall Liquid, Bubble and Wigner Crystal Phases in the Third Landau Level Magnetotransport measurements were performed in a ultra-high mobility GaAs/AlGaAs quantum well of density $\sim 3.0 \times 10^{11}$ $cm^{-2}$. The temperature dependence of the magnetoresistance $R_{xx}$ was studied in detail in the vicinity of $\nu={9/2}$. In particular, we discovered new minima in $R_{xx}$ at filling factor $\nu\simeq 4{1/5}$ and $4{4/5}$, but only at intermediate temperatures $80\lesssim T\lesssim 120$ mK. We interpret these as evidence for a fractional quantum Hall liquid forming in the N=2 Landau level and competing with bubble and Wigner crystal phases favored at lower temperatures. Our data suggest that a magnetically driven insulator-insulator quantum phase transition occurs between the bubble and Wigner crystal phases at T=0.

cond-mat.mes-hall

hep-th cond-mat.dis-nn math-ph math.MP physics.hist-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Measurement of J/psi production at the LHC with the ALICE experiment

hep-ex

q-fin.PR q-fin.RM

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Realizations of Real Low-Dimensional Lie Algebras Using a new powerful technique based on the notion of megaideal, we construct a complete set of inequivalent realizations of real Lie algebras of dimension no greater than four in vector fields on a space of an arbitrary (finite) number of variables. Our classification amends and essentially generalizes earlier works on the subject. Known results on classification of low-dimensional real Lie algebras, their automorphisms, differentiations, ideals, subalgebras and realizations are reviewed.

math-ph gr-qc math.MP math.RT nlin.SI

stat.ML cs.IT math.IT math.NA math.OC math.PR

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Worldvolume supersymmetries for branes in plane waves

hep-th

nlin.PS cond-mat.quant-gas physics.atom-ph quant-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Bounds on the mass of the b' quark, revisited Recent results from the DELPHI collaboration led us to review the present bounds on the b' quark mass. We use all available experimental data for m_b' > 96 GeV to constrain the b' quark mass as a function of the Cabibbo-Kobayashi-Maskawa elements in a sequential four generations model. We find that there is still room for a b' with a mass larger than 96 GeV.

hep-ph

cs.CV cs.DC cs.MM eess.IV

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Pair-Wise Cluster Analysis

stat.ML math.ST stat.AP stat.TH

cs.HC cs.AR cs.ET

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Distribution of random Cantor sets on Tubes We show that there exist $(d-1)$ - Ahlfors regular compact sets $E \subset \mathbb{R}^{d}, d\geq 2$ such that for any $t< d-1$, we have \[ \sup_T \frac{\mathcal{H}^{d-1}(E\cap T)}{w(T)^t}<\infty \] where the supremum is over all tubes $T$ with width $w(T) >0$. This settles a question of T. Orponen. The sets we construct are random Cantor sets, and the method combines geometric and probabilistic estimates on the intersections of these random Cantor sets with affine subspaces.

math.CA

astro-ph.SR astro-ph.EP astro-ph.IM physics.space-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Note on islands in path-length sequences of binary trees

math.CO

cs.CL cs.MM

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Dynamics of the Central kpc in Barred Galaxies: Theory and Modeling The central kpc of barred galaxies exhibits a wealth of morphological information on different components with clear dynamical consequences. These include nuclear rings, spirals, bars, and more. We argue that this morphology is driven by large-scale stellar bars and analyze its consequences for gas dynamics and the distribution of star-forming regions. Specifically, we focus on gas flows in nested bar systems and study their origin, as well as the gravitational decoupling of gaseous nuclear bars with and without gas self-gravity. We find that the gas response in nested bars differs profoundly from that in single bars, and that no offset dust lanes form in the nuclear bars.

astro-ph

nlin.PS nlin.CD q-bio.NC

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Gravitational phase transition of heavy neutrino matter

hep-ph

quant-ph cond-mat.quant-gas cs.AI

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Inhomogeneous Dark Energy We modify Einstein General Relativity by adding non-dynamical scalar fields to account simultaneously for both dark matter and dark energy. The dark energy in this case can be distributed in-homogeneously even within horizon scales. Its inhomogeneities can contribute to the late time integrated Sachs-Wolfe effect, possibly removing some of the low multipole anomalies in the temperature fluctuations of the CMB spectrum. The presence of the inhomogeneous dark matter also influences structure formation in the universe.

astro-ph.CO gr-qc hep-th

cond-mat.stat-mech math.DS nlin.CG

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: A Hybrid Graph-drawing Algorithm for Large, Naturally-clustered, Disconnected Graphs

cs.GR

cs.AI cs.SD eess.AS

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: FacTweet: Profiling Fake News Twitter Accounts We present an approach to detect fake news in Twitter at the account level using a neural recurrent model and a variety of different semantic and stylistic features. Our method extracts a set of features from the timelines of news Twitter accounts by reading their posts as chunks, rather than dealing with each tweet independently. We show the experimental benefits of modeling latent stylistic signatures of mixed fake and real news with a sequential model over a wide range of strong baselines.

cs.CL cs.SI

cs.AI cs.FL cs.LG

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: The Power Spectra of Polarized, Dusty Filaments

astro-ph.CO astro-ph.GA

math.DG math.AP math.DS math.RT

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Compressing Many-Body Fermion Operators Under Unitary Constraints The most efficient known quantum circuits for preparing unitary coupled cluster states and applying Trotter steps of the arbitrary basis electronic structure Hamiltonian involve interleaved sequences of fermionic Gaussian circuits and Ising interaction type circuits. These circuits arise from factorizing the two-body operators generating those unitaries as a sum of squared one-body operators that are simulated using product formulas. We introduce a numerical algorithm for performing this factorization that has an iteration complexity no worse than single particle basis transformations of the two-body operators and often results in many times fewer squared one-body operators in the sum of squares compared to the analytical decompositions. As an application of this numerical procedure, we demonstrate that our protocol can be used to approximate generic unitary coupled cluster operators and prepare the necessary high-quality initial states for techniques (like ADAPT-VQE) that iteratively construct approximations to the ground state.

quant-ph physics.chem-ph

cond-mat.other math-ph math.MP physics.space-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Design and Evaluation of a Novel Short Prototype Filter for FBMC/OQAM Modulation

cs.IT math.IT

cs.PL cs.DS cs.SE

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Temperature induced in-gap states in the band structure and the insulator-metal transition in LaCoO3 For many years a spin-state transition at $T \approx 100 K$ and insulator - metal transition (IMT) at $T_{IMT} \approx 600 K$ in LaCoO$_3 $ remains a mystery. Small low-spin - high-spin spin gap $\Delta _S = E\left( {HS} \right) - E\left( {LS} \right) \sim 100 K$ results in the spin-state transition. The large charge gap $2E_a \approx 2300 K$ ($E_a $ is the activation energy) vs. $\Delta _S $ and $T_{IMT} $ implies that LaCoO$_3 $ is not a simple narrow-gap semiconductor. Here we explain both the spin-state and IMT on the same footing. We obtain strong temperature dependent band structure in LaCoO$_3 $ by the LDA+GTB method that incorporates strong electron correlations, covalence and spin-orbital interaction exactly inside the CoO$_6 $ cluster and the interclaster hopping between different multielectron configurations by perturbation theory for Hubbard X-operators.

cond-mat.str-el

math.ST cs.LG q-bio.QM stat.ME stat.ML stat.TH

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: The Relation Between Galaxy ISM and Circumgalactic OVI Gas Kinematics Derived from Observations and $\Lambda$CDM Simulations

astro-ph.GA

math.OC math.CA math.NA

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Bogoliubov Theory for a Superfluid Bose Gas Flowing in a Random Potential: Stability and Critical Velocity We investigate the stability and critical velocity of a weakly interacting Bose gas flowing in a random potential. By applying the Bogoliubov theory to a disordered Bose system with a steady flow, the condensate density and the superfluid density are determined as functions of the disorder strength, flow velocity, and temperature. The critical velocity, at which the steady flow becomes unstable, is calculated from the spectrum of hydrodynamic excitation. We also show that in two dimensions the critical velocity strongly depends on the system size.

cond-mat.quant-gas cond-mat.stat-mech

q-fin.PR nlin.AO nlin.SI physics.soc-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Search for neutrinos from Gamma-Ray Bursts with ANTARES

astro-ph.HE hep-ex

cs.IT math.IT math.ST stat.CO stat.ML stat.TH

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Finite-time Blowup and Ill-posedness in Sobolev Spaces of the Inviscid Primitive Equations with Rotation Large scale dynamics of the oceans and the atmosphere are governed by the primitive equations (PEs). It is well-known that the three-dimensional viscous PEs is globally well-posed in Sobolev spaces. On the other hand, the inviscid PEs without rotation is known to be ill-posed in Sobolev spaces, and its smooth solutions can form singularity in finite time. In this paper, we extend the above results in the presence of rotation. First, we construct finite-time blowup solutions to the inviscid PEs with rotation, and establish that the inviscid PEs with rotation is ill-posed in Sobolev spaces in the sense that its perturbation around a certain steady state background flow is both linearly and nonlinearly ill-posed in Sobolev spaces. Its linear instability is of the Kelvin-Helmholtz type similar to the one appears in the context of vortex sheets problem. This implies that the inviscid PEs is also linearly ill-posed in Gevrey class of order $s > 1$, and suggests that a suitable space for the well-posedness is Gevrey class of order $s = 1$, which is exactly the space of analytic functions.

math.AP

stat.OT physics.soc-ph q-bio.PE

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Resource Allocation via Sum-Rate Maximization in the Uplink of Multi-Cell OFDMA Networks

math.OC cs.IT math.IT

cs.CR cs.LG math.OC

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Homology groups of simplicial complements: A new proof of Hochster theorem In this paper, we consider homology groups induced by the exterior algebra generated by a simplicial compliment of a simplicial complex $K$. These homology groups are isomorphic to the Tor-groups $\mathrm{Tor}_{i, J}^{\mathbf{k}[m]}(\mathbf{k}(K),\mathbf{k})$ of the face ring $\mathbf{k}(K)$, which is very useful and much studied in toric topology. By using $\check{C}ech$ homology theory and Alexander duality theorem, we prove that these homology groups have dualities with the simplicial cohomology groups of the full subcomplexes of $K$. Then we give a new proof of Hochster's theorem.

math.AT

cs.DC cs.CE physics.ao-ph

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry

cond-mat.supr-con

hep-ph astro-ph cond-mat.stat-mech hep-th nucl-th

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Inverse of a Special Matrix and Application The matrix inversion is an interesting topic in algebra mathematics. However, to determine an inverse matrix from a given matrix is required many computation tools and time resource if the size of matrix is huge. In this paper, we have shown an inverse closed form for an interesting matrix which has much applications in communication system. Base on this inverse closed form, the channel capacity closed form of a communication system can be determined via the error rate parameter alpha

cs.DM cs.IT math.IT

cs.SC cs.CC math.AC math.AG math.CO

Instruct: Identify the main and secondary category of Arxiv papers based on the titles Query: Nonnegative sum-symmetric matrices, optimal-score partitions, and optimal resource allocation

math.OC math.CO

cs.CE cs.FL q-bio.PE

Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts Query: Critical field theory of the Kondo lattice model in two dimensions In the context of the U(1) slave boson theory we derive a critical field theory near the quantum critical point of the Kondo lattice model in two spatial dimensions. First we argue that strong gauge fluctuations in the U(1) slave boson theory give rise to confinement between spinons and holons, thus causing "neutralized" spinons in association with the slave boson U(1) gauge field. Second we show that critical fluctuations of Kondo singlets near the quantum critical point result in a new U(1) gauge field. This emergent gauge field has nothing to do with the slave boson U(1) gauge field. Third we find that the slave boson U(1) gauge field can be exactly integrated out in the low energy limit. As a result we find a critical field theory in terms of renormalized conduction electrons and neutralized spinons interacting via the new emergent U(1) gauge field. Based on this critical field theory we obtain the temperature dependence of specific heat and the imaginary part of the self-energy of the renormalized electrons. These quantities display non-Fermi liquid behavior near the quantum critical point.

cond-mat.str-el

q-bio.BM astro-ph physics.chem-ph