当前期刊: Annals of Physics Go to current issue    加入关注    本刊投稿指南
显示样式:        排序: IF: - GO 导出
我的关注
我的收藏
您暂时未登录!
登录
  • Effective dynamics of the Schwarzschild black hole interior with inverse triad corrections
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-16
    Hugo A. Morales-Técotl; Saeed Rastgoo; Juan C. Ruelas

    We reconsider the study of the interior of the Schwarzschild black hole now including inverse triad quantum corrections within loop quantization. We derive these corrections and show that they are related to two parameters δb,δc associated to the minimum length in the radial and angular directions, that enter Thiemann’s trick for quantum inverse triads. Introduction of such corrections may lead to

    更新日期:2021-01-22
  • Post-Newtonian kinetic theory
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-21
    Gilberto M. Kremer

    A kinetic theory for relativistic gases in the presence of gravitational fields is developed in the second post-Newtonian approximation. The corresponding Boltzmann equation is determined from the evolution of the one-particle distribution function with respect to the proper time along the world line of the particle. From the knowledge of the equilibrium Maxwell-Jüttner distribution function in the

    更新日期:2021-01-22
  • Rényi holographic dark energy in higher dimension Cosmology
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-20
    A. Saha; S. Ghose; A. Chanda; B.C. Paul

    Rényi holographic dark energy (RHDE) correspondence is discussed in higher dimensional cosmology, namely Kaluza–Klein (KK) cosmology. Both interacting and non-interacting cosmological scenario are considered here. It is found that the non-interacting model naturally leads to the late accelerated universe, unlike the standard Holographic Dark Energy models in 4D, which requires interaction to accommodate

    更新日期:2021-01-20
  • Embedding of the Racah algebra R(n) and superintegrability
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-19
    Danilo Latini; Ian Marquette; Yao-Zhong Zhang

    The rank-1 Racah algebra R(3) plays a pivotal role in the theory of superintegrable systems. It appears as the symmetry algebra of the 3-parameter system on the 2-sphere from which all second-order conformally flat superintegrable models in 2D can be obtained by means of suitable limits and contractions. A higher rank generalization of R(3), the so-called rank n−2 Racah algebra R(n), has been considered

    更新日期:2021-01-19
  • Temporal evolution of fluxes in driven quantum dots
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-18
    Debashree Chowdhury

    Driven mesoscopic system is a topic of great recent interest. The temporal evolution of the fluxes(particle and energy) are studied in a system of a driven single level quantum dot. At a very low reservoir temperature T→0 and for common chemical potentials of the two reservoirs, we have presented analytical expressions for time dependent particle and energy fluxes in a very simple form. Apart from

    更新日期:2021-01-19
  • Complexity and near extremal charged black branes
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-09
    Mohsen Alishahiha; Komeil Babaei Velni; Mohammad Reza Tanhayi

    We compute holographic complexity of charged black brane solutions in arbitrary dimensions for the near horizon limit of near extremal case using two different methods. The corresponding complexity may be obtained either by taking the limit from the complexity of the charged black brane, or by computing the complexity for near horizon limit of near extremal solution. One observes that these results

    更新日期:2021-01-18
  • Power spectrum and form factor in random diagonal matrices and integrable billiards
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-04
    Roman Riser; Eugene Kanzieper

    Triggered by a controversy surrounding a universal behavior of the power spectrum in quantum systems exhibiting regular classical dynamics, we focus on a model of random diagonal matrices (RDM), often associated with the Poisson spectral universality class, and examine how the power spectrum and the form factor get affected by two-sided truncations of RDM spectra. Having developed a nonperturbative

    更新日期:2021-01-16
  • Non-local entanglement and fast scrambling in de-Sitter holography
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-15
    Hao Geng

    We study holographic entanglement and information scrambling in de-Sitter (dS) space in the context of the DS/dS correspondence. We find that our previously identified non-local entanglement structure of dS vacua can be extended out of the time-reflection symmetric slice. We extend the geometry to a two-sided configuration and calculate the zero-time mutual information between two intervals on different

    更新日期:2021-01-16
  • Higher-order contact mechanics
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-12
    Manuel de León; Jordi Gaset; Manuel Laínz; Miguel C. Muñoz-Lecanda; Narciso Román-Roy

    We present a complete theory of higher-order autonomous contact mechanics, which allows us to describe higher-order dynamical systems with dissipation. The essential tools for the theory are the extended higher-order tangent bundles, TkQ×R, whose geometric structures are previously introduced in order to state the Lagrangian and Hamiltonian formalisms for these kinds of systems, including their variational

    更新日期:2021-01-12
  • Algebraic structures in the coupling of gravity to gauge theories
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-12
    David Prinz

    This article is an extension of the author’s second master thesis Prinz (2017). It aims to introduce to the theory of perturbatively quantized General Relativity coupled to Spinor Electrodynamics, provide the results thereof and set the notation to serve as a starting point for further research in this direction. It includes the differential geometric and Hopf algebraic background, as well as the corresponding

    更新日期:2021-01-12
  • Higher loop β function for non-Hermitian PT symmetric ιgϕ3 theory
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-27
    Aditya Dwivedi; Bhabani Prasad Mandal

    We investigate Non-Hermitian quantum field theoretic model with ιgϕ3 interaction in 6-dimension. Such a model is PT-symmetric for the pseudo scalar field ϕ. We analytically calculate the 2-loop β function and analyze the system using renormalization group technique. Behavior of the system is studied near the different fixed points. Unlike gϕ3 theory in 6-dimension ιgϕ3 theory develops a new non trivial

    更新日期:2021-01-08
  • Graphene-based topological insulator in the presence of a disclination submitted to a uniform magnetic field
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-30
    J.R.S. Oliveira; G.Q. Garcia; P.J. Porfírio; C. Furtado

    In this paper we investigate quasiparticles in graphene-based topological insulator with a wedge disclination in the presence of a uniform magnetic field. In particular, we consider a massive spinless model. The Landau levels are analytically found for the described system. We show that the Landau levels are lifted for a specific range of the parameter ν. In addition, we also show that, for appropriate

    更新日期:2021-01-08
  • A derivation of Born’s rule from symmetry
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-30
    Sabine Hossenfelder

    We here put forward a simple argument for Born’s rule based on the requirement that transition probabilities in quantum mechanics should not be a function of the number of degrees of freedom in the system, or the dimension of the Hilbert-space, respectively. The argument presented here can be interpreted as deriving Born’s rule from a symmetry requirement.

    更新日期:2021-01-06
  • Pions and Contacts at N4LO: Some details on the chiral nuclear force
    Ann. Phys. (IF 2.083) Pub Date : 2021-01-04
    E.F. Batista; S. Szpigel; V.S. Timóteo

    In this work we have performed a detailed study of chiral nuclear forces at N4LO approximation applied to selected channels of the neutron–proton (np) scattering. The idea is to analyse the different contributions to the nucleon–nucleon (NN) potential by separating the part coming from the exchange of pions and the one coming from the contact interactions. We consider two state-of-the-art chiral interactions

    更新日期:2021-01-04
  • Bound state solution and thermodynamic properties of the screened cosine Kratzer potential under influence of the magnetic field and Aharanov–Bohm flux field
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-19
    Kaushal R. Purohit; Rajendrasinh H. Parmar; Ajay Kumar Rai

    In this article, approximate analytical bound state solutions of the Schrödinger equation in two-dimensional space for screened cosine Kratzer potential (SCKP) under the influence of the magnetic field and Aharanov–Bohm flux field have been investigated. We obtained energy eigenvalues and wave functions for SCKP with external fields (magnetic field and Aharanov–Bohm flux field) via parametric Nikiforov–Uvarov

    更新日期:2020-12-30
  • Hybrid star model with quark matter and baryonic matter in minimally coupled f(R) gravity
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-16
    G. Abbas; H. Nazar

    The present article deals with some new features of static anisotropic relativistic compact object with two fluids distribution (strange quark matter (SQM) and normal baryonic matter) along with Karori–Barua (KB) type metric within the framework of so called f(R) theory of gravity. We have considered the MIT bag model equation of state (EoS) to describe the relationship between pressure and matter

    更新日期:2020-12-30
  • Entanglement Enabled Intensity Interferometry of different wavelengths of light
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-12
    Jordan Cotler; Frank Wilczek; Victoria Borish

    We propose methods to perform intensity interferometry of photons having two different wavelengths. Distinguishable particles typically cannot interfere with each other, but we overcome that obstacle by processing the particles via entanglement and projection so that they lead to the same final state at the detection apparatus. Specifically, we discuss how quasi-phase-matched nonlinear crystals can

    更新日期:2020-12-30
  • Unitarity of quantum tunneling decay for an analytical exact non-Hermitian resonant-state approach
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-16
    Gastón García-Calderón; Roberto Romo

    By using an analytical exact non-Hermitian formalism for quantum tunneling decay that involves the expansion of the decaying wave function as a linear combination of resonant states and transient functions associated with the complex poles of the outgoing Green’s function to the problem, it is shown that the integrated decaying probability density in the whole space satisfies unitarity at each value

    更新日期:2020-12-30
  • Quantum field theory with the generalized uncertainty principle II: Quantum Electrodynamics
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-16
    Pasquale Bosso; Saurya Das; Vasil Todorinov

    Continuing our earlier work on the application of the Relativistic Generalized Uncertainty Principle (RGUP) to quantum field theories, in this paper we study Quantum Electrodynamics (QED) with minimum length. We obtain expressions for the Lagrangian, Feynman rules and scattering amplitudes of the theory, and discuss their consequences for current and future high energy physics experiments. We hope

    更新日期:2020-12-30
  • A note on Jacobi-type transitions in finite nuclei
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-09
    Y. Zhang; L. Cong; C. Xiu; X.D. Song

    The Jacobi-type transitions (JTTs) in nuclei and their connections with excite-state quantum phase transitions (ESQPTs) have been investigated within the framework of the interacting boson model (IBM) by both the semiclassical analysis and quantal calculations. The results indicate that the quadrupole deformation of a transitional system may change from γ rigid to γ soft as the angular momentum increases

    更新日期:2020-12-23
  • Higher-rank tensor field theory of non-abelian fracton and embeddon
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-01
    Juven Wang; Kai Xu

    We formulate a new class of tensor gauge field theories in any dimension that is a hybrid class between symmetric higher-rank tensor gauge theory (i.e., higher-spin gauge theory) and anti-symmetric tensor topological field theory. Our theory describes a mixed unitary phase interplaying between gapless and gapped topological order phases (which can live with or without Euclidean, Poincaré, or anisotropic

    更新日期:2020-12-23
  • Fracton phases via exotic higher-form symmetry-breaking
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-26
    Marvin Qi; Leo Radzihovsky; Michael Hermele

    We study p-string condensation mechanisms for fracton phases from the viewpoint of higher-form symmetry, focusing on the examples of the X-cube model and the rank-two symmetric-tensor U(1) scalar charge theory. This work is motivated by questions of the relationship between fracton phases and continuum quantum field theories, and also provides general principles to describe p-string condensation independent

    更新日期:2020-12-23
  • Hidden symmetry algebra and construction of quadratic algebras of superintegrable systems
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-10
    Rutwig Campoamor-Stursberg; Ian Marquette

    The notion of hidden symmetry algebra used in the context of exactly solvable systems (typically a non semisimple Lie algebra) is re-examined from the purely algebraic way, analyzing subspaces of commuting polynomials that generate finite-dimensional quadratic algebras. By construction, these algebras do not depend on the choice of realizations by vector fields of the underlying Lie algebra, allowing

    更新日期:2020-12-23
  • On the two-dimensional Schrödinger operator with an attractive potential of the Bessel-Macdonald type
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-23
    Wellisson B. De Lima; Oswaldo M. Del Cima; Daniel H.T. Franco; Bruno C. Neves

    We analyze the Schrödinger operator in two-dimensions with an attractive potential given by a Bessel-Macdonald function. This operator is derived in the non-relativistic approximation of planar quantum electrodynamics (QED3) models as a framework for evaluation of two-quasiparticle scattering potentials. The analysis is motivated keeping in mind the fact that parity-preserving QED3 models can provide

    更新日期:2020-12-23
  • Kinklike structures in an arcsin real scalar dynamics
    Ann. Phys. (IF 2.083) Pub Date : 2020-12-05
    Diego R. Granado; Elisama E.M. Lima

    In this paper, we analyze kink-like analytical solutions in a real scalar theory with an arcsin dynamics inspired by the arcsin electrodynamics presented in Kruglov (2015). This analysis is done by means of the first-order formalism. This formalism provides a framework where the equations of motion can be simplified by preserving the linear stability of the theory. In this work, the deformation procedure

    更新日期:2020-12-16
  • Information-theoretic aspects of Werner states
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-29
    Nan Li; Shunlong Luo; Yuan Sun

    In a seminal study of quantum states with Einstein–Podolsky–Rosen correlations (entanglement) admitting a hidden-variable model (Werner, 1989), Werner introduced the dichotomy of entanglement/separability and devised a family of highly symmetric states, now termed the Werner states, some of which exhibit entanglement but no Bell nonlocality. It turns out that the Werner states have a rich structure

    更新日期:2020-12-11
  • A unified system for Coleman–De Luccia transitions
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-26
    Kate Eckerle

    We show that the presence or absence of negative modes associated with the expansion or contraction of Coleman–De Luccia instantons is controlled by the monotonicity properties of a single function parameterized by the tension and two vacuum energies. This approach simplifies and unifies certain aspects of phase transitions between two de Sitter vacua, between two Anti-de Sitter, and between one of

    更新日期:2020-12-08
  • Phase transition of AdS black holes in 4D EGB gravity coupled to nonlinear electrodynamics
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-23
    Sushant G. Ghosh; Dharm Veer Singh; Rahul Kumar; Sunil D. Maharaj

    Einstein–Gauss–Bonnet (EGB) gravity is an outcome of quadratic curvature corrections to the Einstein–Hilbert gravity action in the form of a Gauss–Bonnet (GB) term in D>4 dimensions and EGB gravity is topologically invariant in 4D. Recently several ways have been proposed for regularizing, a D→4 limit of EGB, for nontrivial gravitational dynamics in 4D. Motivated by the importance of anti-de Sitter

    更新日期:2020-12-05
  • Bogoliubov many-body perturbation theory under constraint
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-19
    P. Demol; M. Frosini; A. Tichai; V. Somà; T. Duguet

    In order to solve the A-body Schrödinger equation both accurately and efficiently for open-shell nuclei, a novel many-body method coined as Bogoliubov many-body perturbation theory (BMBPT) was recently formalized and applied at low orders. Based on the breaking of U(1) symmetry associated with particle-number conservation, this perturbation theory must operate under the constraint that the average

    更新日期:2020-12-05
  • Spin-gapped magnets with weak anisotropies I: Constraints on the phase of the condensate wave function
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-27
    Abdulla Rakhimov; Asliddin Khudoyberdiev; Luxmi Rani; B. Tanatar

    We study the thermodynamic properties of dimerized spin-gapped quantum magnets with and without exchange anisotropy (EA) and Dzyaloshinsky and Moriya (DM) anisotropies within the mean-field approximation (MFA). For this purpose we obtain the thermodynamic potential Ω of a triplon gas taking into account the strength of DM interaction up to second order. The minimization of Ω with respect to self-energies

    更新日期:2020-12-05
  • Canonical scalar field inflation with string and R2-corrections
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-20
    S.D. Odintsov; V.K. Oikonomou; F.P. Fronimos

    Assuming that a scalar field controls the inflationary era, we examine the combined effects of string and f(R) gravity corrections on the inflationary dynamics of canonical scalar field inflation, imposing the constraint that the speed of the primordial gravitational waves is equal to that of light’s. Particularly, we study the inflationary dynamics of an Einstein–Gauss–Bonnet gravity in the presence

    更新日期:2020-12-01
  • Second gradient electrodynamics: A non-singular relativistic field theory
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-05
    Markus Lazar; Jakob Leck

    In this paper, we give the covariant formulation of second gradient electrodynamics, which is a generalized electrodynamics of second order including derivatives of higher order. The relativistic form of the field equations, the energy–momentum tensor and the Lorentz force density are presented. For a point charge, the generalized Liénard–Wiechert potentials and the corresponding electromagnetic field

    更新日期:2020-11-21
  • Entropy functionals and thermodynamics of relativistic geometric flows, stationary quasi-periodic Ricci solitons, and gravity
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-07
    Iuliana Bubuianu; Sergiu I. Vacaru; Elşen Veli Veliev

    We investigate gravity models emerging from nonholonomic (subjected to non-integrable constraints) Ricci flows. Considering generalizations of G. Perelman’s entropy functionals, relativistic geometric flow equations, nonholonomic Ricci soliton and equivalent (modified) Einstein equations are derived. There are studied nonholonomic configurations which allow explicit modeling of entropic scenarios for

    更新日期:2020-11-18
  • Frequency difference between two clocks at Tokyo Skytree: Contribution of Earth’s self-rotation
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-06
    T. Yarman; A.L. Kholmetskii; O. Yarman; M. Arik

    We focus on a fundamental issue about the physical meaning of the results of the experiment by Takamoto et al. (2020). Specifically, one must address the time dilation effect associated with the motion of the clocks around the self-rotational axis of Earth as seen by a remote observer free of such rotation. We accentuate the importance of taking into account this effect in the Tokyo Skytree experiment

    更新日期:2020-11-16
  • Black holes with a fluid of strings
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-16
    J.M. Toledo; V.B. Bezerra

    We obtain an exact solution of Einstein’s equations for a charged, static and spherically symmetric body, surrounded by a fluid of strings and with a cosmological constant. This corresponds to the Reissner-Nordström (de Sitter)-Anti de Sitter black hole surrounded by a fluid of strings. Some aspects concerning the horizons and geodesic motion are discussed. We also obtain the metric corresponding to

    更新日期:2020-11-16
  • Spectral sum rules for the Schrödinger equation
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-06
    Paolo Amore

    We study the sum rules of the form Z(s)=∑nEn−s, where En are the eigenvalues of the time-independent Schrödinger equation (in one or more dimensions) and s is a rational number for which the series converges. We have used perturbation theory to obtain an explicit formula for the sum rules up to second order in the perturbation and we have extended it non-perturbatively by means of a Padé-approximant

    更新日期:2020-11-15
  • Time evolution and anti-bunching effect of diatomic molecules coherent states
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-02
    Abdessamad Belfakir; Evaldo M.F. Curado; Yassine Hassouni

    The vibrations inside diatomic molecules are well modeled by the Morse potential and, therefore, the Morse nonlinear coherent states can be considered as approximations of diatomic molecules coherent states. Currently, the experimental realization of nonlinear coherent states for molecular systems is an interesting subject of investigation. In this paper, we analyze the nonclassical properties of different

    更新日期:2020-11-12
  • Maximal acceleration in non-commutative space–time and its implications
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-02
    E. Harikumar; Vishnu Rajagopal

    In this paper, we derive the non-commutative corrections to the maximal acceleration of a massive particle. Using the eight-dimensional κ-deformed phase-space metric, we obtain the κ-deformed maximal acceleration, valid up to first order in the deformation parameter. We then derive the κ-deformed geodesic equation and obtain its Newtonian limit and from this obtain a bound on the deformation parameter

    更新日期:2020-11-12
  • Statistical properties of the two-dimensional Dirac oscillator with spin–orbit coupling
    Ann. Phys. (IF 2.083) Pub Date : 2020-11-02
    Yassine Chargui; Anis Dhahbi

    We investigate the statistical properties of a two-dimensional Dirac oscillator (2D DO) in the presence of a spin–orbit coupling, breaking its supersymmetry. The Hamiltonian of the problem is shown to admit an exact Foldy–Wouthuysen transformation, which allowed us to discard negative-energy states in carrying out our study. The main thermodynamical functions: the Helmholtz free energy, the mean energy

    更新日期:2020-11-12
  • Exact rotating wave approximation
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-26
    Daniel Zeuch; Fabian Hassler; Jesse J. Slim; David P. DiVincenzo

    The Hamiltonian of a linearly driven two-level system, or qubit, in the standard rotating frame contains non-commuting terms that oscillate at twice the drive frequency, ω, rendering the task of analytically finding the qubit’s time evolution nontrivial. The application of the rotating wave approximation (RWA), which is suitable only for drives whose amplitude, or envelope, H1(t), is small compared

    更新日期:2020-11-09
  • A topological Josephson junction platform for creating, manipulating, and braiding Majorana bound states
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-29
    Suraj S. Hegde; Guang Yue; Yuxuan Wang; Erik Huemiller; D.J. Van Harlingen; Smitha Vishveshwara

    As part of the intense effort toward identifying platforms in which Majorana bound states can be realized and manipulated to perform qubit operations, we propose a topological Josephson junction architecture that achieves these capabilities and which can be experimentally implemented. The platform uses conventional superconducting electrodes deposited on a topological insulator film to form networks

    更新日期:2020-11-09
  • Regularity conditions for spherically symmetric solutions of Einstein-nonlinear electrodynamics equations
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-10
    Alberto A. Garcia-Diaz; Gustavo Gutierrez-Cano

    In this report, the regularity conditions at the center for static spherically symmetric (SSS) solutions of the Einstein equations coupled to nonlinear electrodynamics (NLE) are established. The NLE is derived from a Lagrangian L=L(F) depending on the electromagnetic invariant F=FμνFμν∕4. The Einstein-NLE field equations for SSS metrics can be analyzed from the point of view of Euler equations; the

    更新日期:2020-11-04
  • Superconductivity in Graphene induced by the rotated layer
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-29
    D. Schmeltzer

    We linearize the Hamiltonian for Graphene in the vicinity of the nodes and obtain a two dimensional Dirac massless Hamiltonian for each layer. Including the spin–orbit a mass is introduced. The attractive interaction is obtained as a result of rotation of one of the layer. The mass introduced gives rise to attraction for small angle rotation. Using the spinors representation in the vicinity of the

    更新日期:2020-10-30
  • Probing early universe with a generalized action
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-10
    Ranajit Mandal; Dalia Saha; Mohosin Alam; Abhik Kumar Sanyal

    Possibly, the most general action in the background of isotropic and homogeneous space–time has been considered to study the quantum evolution of the early universe, apart from a cosmological constant. The hermiticity of the effective Hamiltonian operator in the presence of curvature squared terms suggests unitary time evolution of the quantum states, assuring conservation of probability. The oscillatory

    更新日期:2020-10-30
  • Coexistent physics and microstructure of the regular Bardeen black hole in anti-de Sitter spacetime
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-15
    C.L. Ahmed Rizwan; A. Naveena Kumara; Kartheek Hegde; Deepak Vaid

    We study the phase structure and the microscopic interactions of a regular Bardeen–AdS black hole. The stable and metastable phases in the black hole are analysed through coexistence and spinodal curves. The solutions are obtained numerically as the analytic solution to the coexistence curve is not feasible. The Pr−Tr coexistence equation is obtained using a fitting formula. The coexistence and spinodal

    更新日期:2020-10-30
  • Generation of multimode quantum correlation with energy-level cascaded four-wave mixing processes
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-15
    Jiawei Li; Wei Li; Mengqi Niu; Yixing Lin; Changbiao Li; Yin Cai; Yanpeng Zhang

    Multimode quantum correlation has important applications in the field of quantum information. In this paper, we propose a compact scheme to generate multiple quantum correlated beams based on energy-level cascaded four-wave mixing (EC-FWM) process in a single atomic medium of rubidium. Injecting two strong pump beams with different frequencies and one weak probe beam into one rubidium vapor, four possible

    更新日期:2020-10-30
  • Ground subspaces of topological phases of matter as error correcting codes
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-15
    Yang Qiu; Zhenghan Wang

    Topological quantum computing is believed to be inherently fault-tolerant. One mathematical justification would be to prove that ground subspaces or ground state manifolds of topological phases of matter behave as error correction codes with macroscopic distance. While this is widely assumed and used as a definition of topological phases of matter in the physics literature, besides the doubled abelian

    更新日期:2020-10-30
  • A study of anisotropic spheres in modified gravity via embedding approach
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-16
    Asifa Ashraf; Zhiyue Zhang; Allah Ditta; G. Mustafa

    The motivation of this paper is based on the foundation of extended teleparallel gravity with matter coupling to prospect the accelerated expansion of the Universe. This theory based on the torsion scalar along with the trace term of energy stress tensor. We manipulate the spherical symmetric metric and anisotropic fluid to discuss the study of stellar structures. To interpret our research, we used

    更新日期:2020-10-30
  • Non-Abelian extension of the aether term and the Gribov problem
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-19
    D.R. Granado; C.P. Felix; I.F. Justo; A.Yu. Petrov; D. Vercauteren

    In this paper, we treat the proper path integral quantization of the Yang–Mills-aether (YM-aether) system by dealing with the extra gauge copies in the Landau gauge. Within Gribov’s prescription to get rid of such remaining gauge copies, we explicitly derive the Gribov parameter dependence of the coupling constant and of the Lorentz violation aether term. The ultraviolet limit is investigated under

    更新日期:2020-10-30
  • Time evolution of the quantized field coupled to a thermal bath: A phase space approach
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-13
    E.P. Mattos; A. Vidiella-Barranco

    We present an alternative method for describing the evolution of a mode of the quantized electromagnetic field in contact with a finite temperature thermal bath. We employ the expansion of the field density operator in terms of coherent states and the related Glauber–Sudarshan P-function in phase space. The method allows us to obtain analytical expressions of the system’s time-evolved P-function without

    更新日期:2020-10-17
  • Study of thermal fluctuations in a charged rotating accelerating AdS black hole
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-08
    M. Sharif; Qanitah Ama-Tul-Mughani

    In this paper, we study the effects of thermal fluctuations on thermodynamics of charged rotating and accelerating anti-de Sitter black hole. We first derive exact expressions of thermodynamic quantities such as entropy, Hawking temperature and angular velocity for slowly accelerating black hole. We then compute Smarr–Gibbs–Dehum relation and thermodynamical volume in extended phase space. To discuss

    更新日期:2020-10-15
  • Aharonov–Casher effect in the presence of spin-dependent potential
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-10
    K. Bakke; C. Furtado

    We study the quantum description of a neutral particle that has a permanent magnetic dipole moment that interacts with the Aharonov–Casher-type field configuration and a nonuniform magnetic field. From the interaction of the magnetic dipole moment with the magnetic field, an effective scalar potential arises in the Schrödinger–Pauli equation, which is characterized by being spin-dependent and proportional

    更新日期:2020-10-15
  • Transforming kinks into compactons in the O(3)-sigma model
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-03
    F.C.E. Lima; D.A. Gomes; C.A.S. Almeida

    In this work, we investigate the solutions of vortices in the O(3)-sigma model with the gauge field governed by the Chern–Simons term and subject to a hyperbolic self-dual potential. We show that this model admits both topological and nontopological soliton solutions. Employing numerical analysis, we realize that the topological solutions of the model can be transformed into compacton-like solutions

    更新日期:2020-10-13
  • Quantum field theory with the generalized uncertainty principle I: Scalar electrodynamics
    Ann. Phys. (IF 2.083) Pub Date : 2020-10-08
    Pasquale Bosso; Saurya Das; Vasil Todorinov

    Recently, the authors presented a covariant extension of the Generalized Uncertainty Principle (GUP) with a Lorentz invariant minimum length. This opens the way for constructing and exploring the observable consequences of minimum length in Relativistic Quantum Field Theories. In particular, we compute quantum gravity corrections to high energy scattering experiments, which may provide the much needed

    更新日期:2020-10-13
  • How efficient is transport of quantum cargo through multiple highways?
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-24
    Saptarshi Roy; Tamoghna Das; Debmalya Das; Aditi Sen(De); Ujjwal Sen

    Quantum states can be efficiently transferred over a long distance if the entire quantum channel can be divided into several small blocks. We consider a scenario in which each block consists of two copies of a multiparty state — one is used for distributing an arbitrary quantum state to multiple parties while the other channel is required to concentrate it back to a single party. Both in noiseless

    更新日期:2020-10-12
  • Renormalization in an interpolating gauge in Yang–Mills theory
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-30
    A. Andraši; J.C. Taylor

    The Coulomb gauge in QCD is the only explicitly unitary gauge. But it suffers from energy-divergences which means that it is not rigorously well-defined. One way to define it unambiguously is as the limit of a gauge interpolating between the Feynman gauge and the Coulomb gauge. This interpolating gauge is characterized by a parameter θ and the Coulomb gauge is obtained in the limit θ→0. We study the

    更新日期:2020-10-08
  • On the four-body problem in the Born–Oppenheimer approximation
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-28
    C.A. Escobar; A. Martín-Ruiz

    The quantum problem of four particles in Rd (d≥3), with arbitrary masses m1,m2,m3 and m4, interacting through a harmonic oscillator potential is considered. This model allows exact solvability and a critical analysis of the Born–Oppenheimer approximation. The study is restricted to the ground state level. We pay special attention to the case of two equally heavy masses m1=m2=M and two light particles

    更新日期:2020-10-06
  • Bicoherent-state path integral quantization of a non-hermitian hamiltonian
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-30
    F. Bagarello; Joshua Feinberg

    We introduce, for the first time, bicoherent-state path integration as a method for quantizing non-hermitian systems. Bicoherent-state path integrals arise as a natural generalization of ordinary coherent-state path integrals, familiar from hermitian quantum physics. We do all this by working out a concrete example, namely, computation of the propagator of a certain quasi-hermitian variant of Swanson’s

    更新日期:2020-10-06
  • Mott transition in two-band fermion model with on-site Coulomb repulsion
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-25
    Igor N. Karnaukhov

    We provide analytical and numerical solutions of the two band fermion model with on-site Coulomb at half filling. In limiting cases for generate bands and one flat band, the model reduces to the Hubbard and Falicov–Kimball models, respectively. We have shown that the insulator state emerges at half filling due to hybridization of fermions of different bands with momenta k and k+π. Such hybridization

    更新日期:2020-10-02
  • Dual fermion method as a prototype of generic reference-system approach for correlated fermions
    Ann. Phys. (IF 2.083) Pub Date : 2020-09-25
    Sergey Brener; Evgeny A. Stepanov; Alexey N. Rubtsov; Mikhail I. Katsnelson; Alexander I. Lichtenstein

    We present a purely diagrammatic derivation of the dual fermion scheme (Rubtsov et al., 2008). The derivation makes particularly clear that a similar scheme can be developed for an arbitrary reference system provided it has the same interaction term as the original system. Thereby no restrictions are imposed by the locality of the reference problem or by the nature of the original problem as a lattice

    更新日期:2020-10-02
Contents have been reproduced by permission of the publishers.
导出
全部期刊列表>>
微生物研究
亚洲大洋洲地球科学
NPJ欢迎投稿
自然科研论文编辑
ERIS期刊投稿
欢迎阅读创刊号
自然职场,为您触达千万科研人才
spring&清华大学出版社
城市可持续发展前沿研究专辑
Springer 纳米技术权威期刊征稿
全球视野覆盖
施普林格·自然新
chemistry
物理学研究前沿热点精选期刊推荐
自然职位线上招聘会
欢迎报名注册2020量子在线大会
化学领域亟待解决的问题
材料学研究精选新
GIANT
ACS ES&T Engineering
ACS ES&T Water
屿渡论文,编辑服务
阿拉丁试剂right
上海中医药大学
浙江大学
西湖大学
化学所
北京大学
清华
隐藏1h前已浏览文章
课题组网站
新版X-MOL期刊搜索和高级搜索功能介绍
ACS材料视界
清华大学-1
武汉大学
浙江大学
天合科研
x-mol收录
试剂库存
down
wechat
bug