Annals of Physics最新文献_第3页

Multiple localization transitions in a dimerized Kitaev superconductor model with random-dimer disorder 具有随机-二聚体无序的二聚基塔耶夫超导体模型中的多重局域化跃迁

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-16 DOI: 10.1016/j.aop.2025.170070

Yuan Yang, Zhengxuan Ding, Xiaobing Li

引用次数: 0

Path-integral formulation of truncated Wigner approximation for bosonic Markovian open quantum systems 玻色子马尔可夫开放量子系统截断Wigner近似的路径积分公式

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-16 DOI: 10.1016/j.aop.2025.170072

Toma Yoneya , Kazuya Fujimoto , Yuki Kawaguchi

{"title":"Path-integral formulation of truncated Wigner approximation for bosonic Markovian open quantum systems","authors":"Toma Yoneya , Kazuya Fujimoto , Yuki Kawaguchi","doi":"10.1016/j.aop.2025.170072","DOIUrl":"10.1016/j.aop.2025.170072","url":null,"abstract":"<div><div>The truncated Wigner approximation (TWA) enables us to investigate bosonic quantum many-body dynamics, including open quantum systems described by the Gorini-Kossakowski-Sudarshan-Lindblad (GKSL) equation. In the TWA, the Weyl-Wigner transformation, a way of mapping from quantum-mechanical operators to <span><math><mi>c</mi></math></span>-numbers, of the GKSL equation leads to the Fokker-Planck equation, which we calculate by reducing it to the corresponding stochastic differential equations. However, the Fokker-Planck equation is not always reduced to the stochastic differential equations depending on details of jump operators. In this work, we clarify the condition for obtaining the stochastic differential equations from the Fokker-Planck equation and derive analytical expressions of these equations for a system with an arbitrary Hamiltonian with jump operators that do not couple different states. This result leads to remarkable simplification of the complicated calculations required in the conventional procedures of the TWA. In the course of the derivation, we formulate the GKSL equation by using the path-integral representation based on the Weyl-Wigner transformation, which gives us a clear interpretation of the relation between the TWA and quantum fluctuations and allows us to calculate the non-equal time correlation functions in the TWA. In the benchmark calculations, we numerically confirm that the relaxation dynamics of physical quantities including the non-equal time correlation functions obtained in our formulation agrees well with the exact ones in the numerically solvable models. Since our formulation is widely applicable to bosonic systems such as the Bose-Hubbard model, it facilitates studies of the open quantum many-body phenomenon.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"479 ","pages":"Article 170072"},"PeriodicalIF":3.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106099","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}

引用次数: 0

Non-Hermiticity enhanced topological immunity of one-dimensional p-wave superconducting chain 非厄米性增强一维p波超导链的拓扑抗扰性

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-15 DOI: 10.1016/j.aop.2025.170073

Min Liu , Yue Zhang , Rui Tian, Xiayao He, Tianhao Wu, Maksims Arzamasovs, Shuai Li, Bo Liu

引用次数: 0

The effect of a new position-dependent effective mass on the optical properties of a hydrogenic donor in a spherical quantum dot 新的位置相关有效质量对球形量子点中氢给体光学性质的影响

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-15 DOI: 10.1016/j.aop.2025.170074

K. Bayrak, D. Kaya, G.B. Gök, O. Bayrak

引用次数: 0

The ground states of spin–orbit coupled Bose–Einstein condensates in spin-dependent potential 自旋轨道耦合玻色-爱因斯坦凝聚在自旋相关势中的基态

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-15 DOI: 10.1016/j.aop.2025.170068

Congying Ma , Jingjing Jin , Haoran Sun , Wenyuan Liu , Qi Jie

{"title":"The ground states of spin–orbit coupled Bose–Einstein condensates in spin-dependent potential","authors":"Congying Ma , Jingjing Jin , Haoran Sun , Wenyuan Liu , Qi Jie","doi":"10.1016/j.aop.2025.170068","DOIUrl":"10.1016/j.aop.2025.170068","url":null,"abstract":"<div><div>By exploring the Rashba spin–orbit (SO)-coupled pseudo-spin-1/2 Bose–Einstein condensates (BECs) with the Gross–Pitaevskii equations, we investigate the ground state properties of condensates in spin-dependent Gaussian potential. The condensates exhibit many rich density patterns due to competition among interparticle interaction, SO coupling and trapping potential. In the regime of fixed potential well spacing, with relatively weak SO coupling strength, a novel structure called skyrmion dipole can be observed. And the transition between skyrmion dipole, plane wave (PW) phase with vortex array, and stripe phase can be realized by changing the SO coupling strength. In the regime of fixed SO coupling strength, the non-overlap of two potential wells breaks the rotational symmetry of the potential well, and the spatial orientation of the stripe state and the PW state to be locked in a specific direction while each component replicates the same structure in the potential well of the other component. The orientation of the plane waves and stripes in both structures is same for small well spacing and independent for large well spacing. This work enriches the ground state phases of the ultracold atomic systems and deepens our understanding of topological excitation in cold atom physics and condensed matter physics.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"479 ","pages":"Article 170068"},"PeriodicalIF":3.0,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068337","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}

引用次数: 0

An infinite grid of mesoscopic resistors – investigation and visualization of ballistic conduction 介观电阻器的无限网格——弹道传导的研究与可视化

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-14 DOI: 10.1016/j.aop.2025.170069

Oliwier Urbański

引用次数: 0

Exponential wormhole, its quasinormal modes, and study in logarithmic f(R) gravity 指数虫洞及其拟正态，以及对数f(R)重力下的研究

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-14 DOI: 10.1016/j.aop.2025.170067

Partha Pratim Nath, Debojit Sarma

{"title":"Exponential wormhole, its quasinormal modes, and study in logarithmic f(R) gravity","authors":"Partha Pratim Nath, Debojit Sarma","doi":"10.1016/j.aop.2025.170067","DOIUrl":"10.1016/j.aop.2025.170067","url":null,"abstract":"<div><div>We have investigated the quasinormal modes of “exponential wormhole” using 3rd-order WKB approximation. Following that, we have explored the metric in the logarithmic <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity using a cubic gravity term inside the <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> function. We determined the parameters for the logarithmic <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity model, which include energy density, tangential, and radial pressure. Afterward, we explored the energy conditions for the proposed model through related plots. We have used trivial techniques to constrain the free parameters of the logarithmic <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity. We showed the appropriate stability criteria using related graphs. Also, we discovered that the exponential wormhole satisfies some of the required energy barriers in the Logarithmic <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity without disturbing any flare-out or stability constraints. We additionally studied the stability of the exponential wormhole in the logarithmic <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity through the Tolman–Oppenheimer–Volkoff(TOV) equation and found some interesting nature of the space–time. The logarithmic f(R) gravity model is convenient for the exponential wormhole’s existence, even if there are certain limitations on the parameter ranges of the <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity model.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"479 ","pages":"Article 170067"},"PeriodicalIF":3.0,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068234","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}

引用次数: 0

Reconstructed Tsallis Hologhraphic F(T,TG) dark energy model with scalar fields 重建了带标量场的Tsallis全息F（T，TG）暗能量模型

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-13 DOI: 10.1016/j.aop.2025.170056

Kanwal Nazir, Nimra Ramzan, Myra Nisar

引用次数: 0

Path integrals from spacetime quantum actions 时空量子作用的路径积分

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-12 DOI: 10.1016/j.aop.2025.170052

N.L. Diaz , J.M. Matera , R. Rossignoli

{"title":"Path integrals from spacetime quantum actions","authors":"N.L. Diaz , J.M. Matera , R. Rossignoli","doi":"10.1016/j.aop.2025.170052","DOIUrl":"10.1016/j.aop.2025.170052","url":null,"abstract":"<div><div>The possibility of extending the canonical formulation of quantum mechanics (QM) to a space–time symmetric form has recently attracted wide interest. In this context, a recent proposal has shown that a spacetime symmetric many-body extension of the Page and Wootters mechanism naturally leads to the so-called Quantum Action (QA) operator, a quantum version of the action of classical mechanics. In this work, we focus on connecting the QA with the well-established Feynman’s Path Integral (PI). In particular, we present a novel formalism which allows one to identify the “sum over histories” with a quantum trace, where the role of the classical action is replaced by the corresponding QA. The trace is defined in the extended Hilbert space resulting from assigning a conventional Hilbert space to each time slice and then taking their tensor product. The formalism opens the way to the application of quantum computation protocols to the evaluation of PIs and general correlation functions, and reveals that different representations of the PI arise from distinct choices of basis in the evaluation of the same trace expression. The Hilbert space embedding of the PIs also discloses a new approach to their continuum time limit. Finally, we discuss how the ensuing canonical-like version of QM inherits many properties from the PI formulation, thus allowing an explicitly covariant treatment of spacetime symmetries.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"479 ","pages":"Article 170052"},"PeriodicalIF":3.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942692","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}

引用次数: 0

Double-slit experiment revisited 双缝实验重现

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-05-12 DOI: 10.1016/j.aop.2025.170054

Siddhant Das , Dirk-André Deckert , Leopold Kellers , Simon Krekels , Ward Struyve

{"title":"Double-slit experiment revisited","authors":"Siddhant Das , Dirk-André Deckert , Leopold Kellers , Simon Krekels , Ward Struyve","doi":"10.1016/j.aop.2025.170054","DOIUrl":"10.1016/j.aop.2025.170054","url":null,"abstract":"<div><div>The double-slit experiment is one of the quintessential quantum experiments. However, it tends to be overlooked that the build-up of the interference pattern involves single detection events with a random position and a random time of detection. Hence, a full theoretical account of this experiment requires the specification of the joint position and time distribution of detection at the screen, whose position marginal yields the famous interference pattern. The difficulty lies in what this distribution should be. While there are a variety of proposals for a quantum mechanical time observable , there is no consensus about the right choice. Here, we consider Bohmian mechanics, which allows for a natural and practical approach to this problem. We simulate this distribution in the case of an initial Gaussian wave packet passing through a double-slit potential. We also consider a more challenging setup in which one of the slits is closed during flight. To experimentally probe the quantum nature of the time distribution, a sufficient longitudinal spread of the initial wave packet is required, which has not been achieved so far. Without sufficient spread, the temporal aspect of the distribution can be treated classically. We illustrate this for the case of the double-slit experiment with helium atoms by Kurtsiefer et al. (1997), which reports the joint position and time distribution.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"479 ","pages":"Article 170054"},"PeriodicalIF":3.0,"publicationDate":"2025-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144106095","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}

引用次数: 0