Annals of Physics最新文献

{"title":"Entropy bounds and holographic dark energy: Conflicts and consensus","authors":"Manosh T. Manoharan","doi":"10.1016/j.aop.2025.170231","DOIUrl":"10.1016/j.aop.2025.170231","url":null,"abstract":"<div><div>Cohen, Kaplan, and Nelson’s influential paper established that the UV–IR cut-offs cannot be arbitrarily chosen but are constrained by the relation <span><math><mrow><msup><mrow><mi>Λ</mi></mrow><mrow><mn>2</mn></mrow></msup><mi>L</mi><mo>≲</mo><msub><mrow><mi>M</mi></mrow><mrow><mi>p</mi></mrow></msub></mrow></math></span>. Here, we revisit the formulation of the CKN entropy bound and compare it with other bounds. The specific characteristics of each bound are shown to depend on the underlying scaling of entropy. Notably, employing a non-extensive scaling with the von Neumann entropy definition yields a more stringent constraint, <span><math><mrow><msub><mrow><mi>S</mi></mrow><mrow><mtext>max</mtext></mrow></msub><mo>≈</mo><msqrt><mrow><msub><mrow><mi>S</mi></mrow><mrow><mtext>BH</mtext></mrow></msub></mrow></msqrt></mrow></math></span>, where <span><math><msub><mrow><mi>S</mi></mrow><mrow><mtext>BH</mtext></mrow></msub></math></span> is the Bekenstein–Hawking entropy. We also clarify distinctions between the IR cut-offs used in these frameworks. Moving to the causal entropy bound, we demonstrate that it categorises the CKN bound as matter-like, the von Neumann bound as radiation-like, and the Bekenstein bound as black hole-like systems when saturated. Emphasising cosmological implications, we confirm the consistency between the bounds and the first laws of horizon thermodynamics. We then analyse the shortcomings in standard Holographic Dark Energy (HDE) models, highlighting the challenges in constructing HDE using <span><math><mrow><msup><mrow><mi>Λ</mi></mrow><mrow><mn>2</mn></mrow></msup><mi>L</mi><mo>≲</mo><msub><mrow><mi>M</mi></mrow><mrow><mi>p</mi></mrow></msub></mrow></math></span>. Specifically, using the Hubble function in HDE definitions introduces circular logic, causing dark energy to mimic the second dominant component rather than behaving as matter. We further illustrate that the potential for other IR cut-offs, like the future event horizon in an FLRW background or those involving derivatives of the Hubble function, to explain late-time acceleration stems from an integration constant that cannot be trivially set to zero. In brief, the CKN relation does not assign an arbitrary cosmological constant; it explains why its value is small.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170231"},"PeriodicalIF":3.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The general cubic wave breaking problem for the photon fluid: Third-order dispersion and self-steepening effects","authors":"Yuan Xiang,&nbsp;Rui Guo","doi":"10.1016/j.aop.2025.170227","DOIUrl":"10.1016/j.aop.2025.170227","url":null,"abstract":"<div><div>In this paper, we consider wave breaking problem for the photon fluid propagating along a stationary medium with its profile characterized by a cubic root shape with account of third-order dispersion and self-steepening effects. Using the finite-band integral method and averaging conservation laws, we derive the periodic solution and the corresponding Whitham equation, respectively. Based on Whitham modulation theory, the dispersive shock wave (DSW) can be approximately represented as a modulated periodic solution with correct phase shift. The motion laws of the DSW at the soliton edge and small-amplitude edge can be analyzed separately. Furthermore, utilizing time reversibility, wave-breaking phenomena and wave structures are explored across distinct parameter spaces of <span><math><mi>α</mi></math></span> and <span><math><mi>β</mi></math></span> in the optical field. Additionally, the impacts of the third-order dispersion and self-steepening effects — both governed by <span><math><mi>β</mi></math></span> — on the evolution of wave structures are examined.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170227"},"PeriodicalIF":3.0,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hartman effect from a geometrodynamic extension of Bohmian mechanics","authors":"Said Lantigua ,&nbsp;Jonas Maziero","doi":"10.1016/j.aop.2025.170226","DOIUrl":"10.1016/j.aop.2025.170226","url":null,"abstract":"<div><div>This paper develops a geometrodynamic extension of Bohmian mechanics to describe quantum tunneling through a potential barrier, treating particle trajectories as geodesics in an Alcubierre-type spacetime. The model provides analytical expressions for the quantum potential, particle dynamics, and tunneling time, explicitly linked to the underlying spacetime geometry. For narrow barriers, the tunneling time depends on the barrier width, while for sufficiently wide barriers, it saturates to a constant value—recovering the Hartman effect. This behavior arises from a geometric self-regulation mechanism, where the quantum potential dynamically adjusts the spacetime distortion to maintain a fixed tunneling time, consistent with relativistic causality despite effective superluminal propagation. The results establish a direct connection between quantum tunneling and spacetime geometry, offering a unified framework to interpret the Hartman effect. This approach naturally incorporates relativistic constraints while suggesting that similar geometric mechanisms may underlie other quantum phenomena, such as topological phases in condensed matter systems.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170226"},"PeriodicalIF":3.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient recyclable generation protocol for high-dimensional spatial-path GHZ states","authors":"Meng-Dong Zhu ,&nbsp;Yu-Hao Wang ,&nbsp;Shi-Pu Gu ,&nbsp;Xing-Fu Wang ,&nbsp;Lan Zhou ,&nbsp;Yu-Bo Sheng","doi":"10.1016/j.aop.2025.170225","DOIUrl":"10.1016/j.aop.2025.170225","url":null,"abstract":"<div><div>Multipartite high-dimensional entanglement offers a larger space for storing and processing quantum information and is the crucial resource in future high-capacity and high-security quantum networks. The high-efficiency generation of multipartite high-dimensional entanglement is of central importance for its application. In the paper, we propose a recyclable generation protocol for the four-photon three-dimensional spatial-path Greenberger–Horne–Zeilinger (GHZ) state with linear optical elements and practical “on-off” photon detectors. Our protocol is feasible under current experimental conditions, and the generated three-dimensional GHZ state can be preserved for applications. When the generation protocol fails, the output state may evolve into the auxiliary state for the next generation round. In this way, our protocol can effectively save precious EPR resources. With the increase of repeating number, our protocol will have a prominent advantage in saving precious entanglement resources. Our protocol can provide effective guidance for the experimental preparation of the three-dimensional spatial-path GHZ state, and has important application in future multipartite high-dimensional quantum networks.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170225"},"PeriodicalIF":3.0,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of geodesics in non-linear electrodynamics corrected black hole and shadows of its rotating analogue","authors":"Hari Prasad Saikia ,&nbsp;Mrinnoy M. Gohain ,&nbsp;Kalyan Bhuyan","doi":"10.1016/j.aop.2025.170233","DOIUrl":"10.1016/j.aop.2025.170233","url":null,"abstract":"<div><div>We study the nature of particle geodesics around a non-linear electrodynamic black hole (NLED-BH) inspired by the confinement of a heavy quark-antiquark system, which reduces to Maxwell’s linear electrodynamics theory at the strong field regime. The corrected BH solution is a special generalisation of the Schwarzschild BH at the linear regime. Such a type of corrected system is parameterised by a charge parameter along with a non-linear electrodynamic term <span><math><mi>ζ</mi></math></span>. To be specific, we studied the geodesic behaviour of massless null particles through the geodesic equations using the backward ray-tracing method. We also investigated how NLED effects in charged BH spacetimes affect timelike particle orbits, specifically properties like precession frequency and orbital velocity around the NLED BH. Furthermore, to extend the analysis to the rotating case, we used the modified Newman-Janis algorithm to generate the rotating analogue of the NLED BH. We then analysed the ergosphere formation and shadow cast by the rotating analogue of the NLED BH.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170233"},"PeriodicalIF":3.0,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Confluent supersymmetric algorithm for bilayer graphene","authors":"Jonathan de la Cruz-Hernandez,&nbsp;David J. Fernández C.","doi":"10.1016/j.aop.2025.170184","DOIUrl":"10.1016/j.aop.2025.170184","url":null,"abstract":"<div><div>External magnetic field profiles leading to equidistant and partially equidistant bilayer graphene spectra within the tight-binding model are obtained. This is achieved by implementing the integral and differential versions of the second-order confluent algorithm to the harmonic oscillator for arbitrary real factorization energies. Additionally, new Barut–Girardello and Gilmore–Perelomov coherent states for bilayer graphene are derived, for both diagonal and non-diagonal ladder operators. Their time evolution is analyzed, finding temporal stability and cyclic evolution in some cases. This fact is contrasted with the non-cyclic evolution of bilayer graphene coherent states obtained when using two different factorization energies. Likewise, the geometric phase and uncertainty product of the quadratures for the previously obtained coherent states are studied.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170184"},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Equilibrium vortex lattices of a rotating dipolar Bose gas with spin–orbit coupling","authors":"Fang Hui ,&nbsp;Fang Wang ,&nbsp;Pu Tu ,&nbsp;Xiao-Fei Zhang","doi":"10.1016/j.aop.2025.170211","DOIUrl":"10.1016/j.aop.2025.170211","url":null,"abstract":"<div><div>We consider a two-component rotating dipolar Bose gas with spin–orbit coupling trapped in a two-dimensional harmonic potential. Our results show that the ground state phases and its related vortex structures of such a system shows strong dependence on the strength of spin–orbit coupling, dipole–dipole interaction, as well as on the rotation frequency. Under the combined effects of such parameters, the system exhibits a variety of ground state phases and topological defects, such as hidden vortex, vortex necklace, vortex chains with different symmetry, and so on. In addition, different phase transitions between such different ground state phases can be realized by a proper choice of the controllable parameters.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170211"},"PeriodicalIF":3.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topological properties of a spin-orbit coupled Su-Schrieffer-Heeger model co-modulated by imaginary potential and nonreciprocity","authors":"Shu-Li Wang,&nbsp;Jia-Rui Li,&nbsp;Lian-Lian Zhang,&nbsp;Wei-Jiang Gong","doi":"10.1016/j.aop.2025.170228","DOIUrl":"10.1016/j.aop.2025.170228","url":null,"abstract":"<div><div>This paper investigates the topological properties and spectral characteristics of a nonreciprocal spin-orbit-coupled Su-Schrieffer-Heeger model with complex gain and loss potentials. It is found that, as the imaginary potential increases, the originally fourfold-degenerate zero-energy states are suppressed, accelerating the transition of originally purely real eigenstates into the complex ones. The interplay between the imaginary potential and nonreciprocal hopping strength drives a topological phase transition in the system, leading to the emergence of new topological phases. The introduction of the imaginary potential broadens the range of doubly degenerate zero-energy states and generates a gapless phase in the region where the intracell hopping is negative. All these results provide theoretical support for exploring the competition between imaginary potentials and nonreciprocal coupling in spin-orbit-coupled systems. This work contributes to the understanding of topological phase transitions and the non-Hermitian skin effect in nonreciprocal systems.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170228"},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From harmonic trap to optical lattice: Adiabatic loading of a quasi-one-dimensional interacting Bose gas","authors":"Xuerui Du ,&nbsp;Qi Wang ,&nbsp;Jianhui Wang ,&nbsp;Yongli Ma","doi":"10.1016/j.aop.2025.170212","DOIUrl":"10.1016/j.aop.2025.170212","url":null,"abstract":"<div><div>Ultracold atoms in optical lattices offer a highly controllable platform for studying diverse quantum phases. In three dimensions, Bose gases exhibit Bose–Einstein condensation (BEC) below a critical temperature <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub></math></span>, while in optical lattices, a superfluid–Mott insulator transition emerges at zero temperature. In contrast, quasi-one-dimensional (quasi-1D) trapped Bose gases do not exhibit true condensation in the thermodynamic limit but can display finite-size condensate features and have been tested by experiments. In this work, we investigate the adiabatic loading of a harmonically trapped quasi-1D Bose gas initially prepared in the quasi-BEC phase into an optical lattice with confinement-induced resonance (CIR) interactions. By combining the thermodynamic Bethe ansatz with a lattice phonon model — whose phonon spectrum is obtained from the discrete nonlinear Schrödinger equation (DNLSE) — we investigate how interaction strength and lattice depth jointly influence the adiabatic loading process. In particular, we analyze the resulting final temperature <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>f</mi></mrow></msub></math></span> and the most probable site occupation number <span><math><msubsup><mrow><mi>n</mi></mrow><mrow><mi>L</mi></mrow><mrow><mo>∗</mo></mrow></msubsup></math></span> that characterize the equilibrium state in the optical lattice. We find that <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>f</mi></mrow></msub></math></span> generally exceeds the initial temperature <span><math><msub><mrow><mi>T</mi></mrow><mrow><mi>i</mi></mrow></msub></math></span> due to entropy redistribution when the filling is not fixed. Crucially, we identify that the loss of superfluidity is not solely caused by on-site interactions, as usually assumed, but is also strongly influenced by interaction-induced tunneling. As this term becomes appreciable at strong coupling, it induces dynamical instabilities that can destroy the superfluid phase even in regimes previously deemed stable. Our results clarify how combined lattice potentials and interatomic interactions shape the thermodynamic behavior and stability of ultracold atomic systems in low dimensions.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170212"},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy conditions and gravitational baryogenesis in f(R,R) gravity","authors":"K. Atazadeh,&nbsp;S. Golsanamlou","doi":"10.1016/j.aop.2025.170210","DOIUrl":"10.1016/j.aop.2025.170210","url":null,"abstract":"<div><div>In this work, first we examine the energy conditions in the context of the generalized metric-Palatini hybrid gravity, known as <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>,</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity. We show that for the proposed model in this study, <em>i.e.</em> <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>,</mo><mi>R</mi><mo>)</mo></mrow><mo>=</mo><mi>R</mi><mo>+</mo><mi>α</mi><msup><mrow><mi>R</mi></mrow><mrow><mi>n</mi></mrow></msup></mrow></math></span>, one of the four fundamental energy conditions, specifically the strong energy condition, does not hold for some values of <span><math><mi>n</mi></math></span>. Therefore, it seems that hybrid gravity can provide a model for the accelerated expansion of the universe. In continuation of completing our study in this work, we try to analyze the impact of hybrid metric-Palatini gravity on the gravitational baryogenesis process. The hybrid metric-Palatini model combines two gravitational theories that allow for a more detailed examination of the behavior of space–time and its interaction with matter. This combination is critical in the early radiation-dominant universe, where unusual gravitational effects may play a key role in generating baryonic asymmetry and the production of baryons and anti-baryons.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"482 ","pages":"Article 170210"},"PeriodicalIF":3.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}