Annals of Physics最新文献_第2页

Spontaneous emission in a coupled cavity array featuring random-dimer disorder

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-25 DOI: 10.1016/j.aop.2025.170009

Mariana O. Monteiro, Guilherme M.A. Almeida, Francisco A.B.F. de Moura

引用次数: 0

Vacuum state perturbed by an oscillon: Composite configurations in ϕ4 model

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-24 DOI: 10.1016/j.aop.2025.170008

Fabiano C. Simas , Eduardo da Hora

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Impact of extended gravity theories on accretion dynamics and observables in black hole

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-22 DOI: 10.1016/j.aop.2025.170006

Shahid Chaudhary , Shahi Rome , Muhammad Danish Sultan , Ahmadjon Abdujabbarov , Awatef Abidi , Yousef Mohammad Alanazi , Abdulrahman Bin Jumah

{"title":"Impact of extended gravity theories on accretion dynamics and observables in black hole","authors":"Shahid Chaudhary , Shahi Rome , Muhammad Danish Sultan , Ahmadjon Abdujabbarov , Awatef Abidi , Yousef Mohammad Alanazi , Abdulrahman Bin Jumah","doi":"10.1016/j.aop.2025.170006","DOIUrl":"10.1016/j.aop.2025.170006","url":null,"abstract":"<div><div>We examine a thin accretion disk surrounding a static, spherically symmetric black hole within the framework of Einstein–Gauss–Bonnet massive gravity theory. Our focus is on the motion of particles in circular orbits around the black hole in this spacetime. Specifically, we study the geodesic motion of particles confined to the equatorial plane, which contributes to the formation of the thin accretion disk, to explore their innermost stable circular orbits and energy flux distribution. To provide a comprehensive analysis of our study, we present density plots of the effective potential, specific energy, angular momentum, angular velocity, and radiation flux. The contour plots reveal that the massive gravity and Gauss–Bonnet parameters significantly influence the gravitational pull and energy dissipation within the accretion disk. These effects have important implications for the observational properties of black holes in extended gravity theories, impacting the disk’s brightness and thermal spectrum. Utilizing the well-established Novikov–Thorne model for accretion, we investigate the impact of Gauss–Bonnet and massive gravity parameters on the direct and secondary images of the black hole’s accretion disk at various observation angles. Notably, we observe significant deviations from standard black hole solutions, such as Schwarzschild or Reissner–Nordstrm.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"477 ","pages":"Article 170006"},"PeriodicalIF":3.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685067","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

Scaling of Fock space propagator in quasiperiodic many-body localizing systems

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-22 DOI: 10.1016/j.aop.2025.170001

Soumi Ghosh , Jagannath Sutradhar , Subroto Mukerjee , Sumilan Banerjee

{"title":"Scaling of Fock space propagator in quasiperiodic many-body localizing systems","authors":"Soumi Ghosh , Jagannath Sutradhar , Subroto Mukerjee , Sumilan Banerjee","doi":"10.1016/j.aop.2025.170001","DOIUrl":"10.1016/j.aop.2025.170001","url":null,"abstract":"<div><div>Recently many-body localized systems have been treated as a hopping problem on a Fock space lattice with correlated disorder, where the many-body eigenstates exhibit multi-fractal character. The many-body propagator in Fock space has been shown to be useful for capturing this multifractality and extracting a Fock-space localization length for systems with random disorder in real space. Here we study a one-dimensional interacting system of spinless Fermions in the presence of a deterministic quasiperiodic potential using the Fock-space propagator. From the system-size scaling of the self-energy associated with the diagonal elements and the scaling of the off-diagonal elements of the propagator, we extract fractal characteristics and FS localization lengths, respectively, which behave similarly to that in the random system. We compute the sample-to-sample fluctuations of the typical self-energy and the off-diagonal propagator over different realizations of the potential and show that the fluctuations in the self-energy distinguish quasiperiodic and random systems, whereas the fluctuations of the off-diagonal elements cannot demarcate the two types of potential. In particular, for the random system, the sample-to-sample fluctuations of the self-energy exhibits a distinct transition or sharp crossover within the thermal phase in the form of a peak whose height increases with system size. Such a feature is completely absent in the quasiperiodic system.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"478 ","pages":"Article 170001"},"PeriodicalIF":3.0,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143704920","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

Stochastic theory of nonlinear electrical circuits in thermal equilibrium

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-22 DOI: 10.1016/j.aop.2025.169997

Andrew Osborne, Andrew Lucas

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More on analytically approximate solution to quadratic gravity

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-22 DOI: 10.1016/j.aop.2025.170007

Seyed Naseh Sajadi, Supakchai Ponglertsakul

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Effects of gravity on passive-state continuous variable quantum key distribution

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-22 DOI: 10.1016/j.aop.2025.170003

Yuying Zhang , Jiayan Fu , Jian Zhou , Yanyan Feng , Ronghua Shi , Jinjing Shi

引用次数: 0

Algebraic structures and Hamiltonians from the equivalence classes of 2D conformal algebras

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-21 DOI: 10.1016/j.aop.2025.169998

Ian Marquette, Junze Zhang, Yao-Zhong Zhang

{"title":"Algebraic structures and Hamiltonians from the equivalence classes of 2D conformal algebras","authors":"Ian Marquette, Junze Zhang, Yao-Zhong Zhang","doi":"10.1016/j.aop.2025.169998","DOIUrl":"10.1016/j.aop.2025.169998","url":null,"abstract":"<div><div>The construction of superintegrable systems based on Lie algebras and their universal enveloping algebras has been widely studied over the past decades. However, most constructions rely on explicit differential operator realisations and Marsden–Weinstein reductions. In this paper, we develop an algebraic approach based on the subalgebras of the 2D conformal algebra <span><math><mrow><mi>c</mi><mrow><mo>(</mo><mn>2</mn><mo>)</mo></mrow></mrow></math></span>. This allows us to classify the centralisers of the enveloping algebra of the conformal algebra and construct the corresponding Hamiltonians with integrals in algebraic form. It is found that the symmetry algebras underlying these algebraic Hamiltonians are six-dimensional quadratic algebras. The Berezin brackets and commutation relations of the quadratic algebraic structures are closed without relying on explicit realisations or representations. We also give the Casimir invariants of the symmetry algebras. Our approach provides algebraic perspectives for the recent work by Fordy and Huang on the construction of superintegrable systems in the Darboux spaces.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"477 ","pages":"Article 169998"},"PeriodicalIF":3.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143705108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of a squeezed prewell on tunneling properties and bound states in heterostructures

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-21 DOI: 10.1016/j.aop.2025.169999

Yaroslav Zolotaryuk, Alexander V. Zolotaryuk

引用次数: 0

Comment on “A path integral over Hilbert space for quantum mechanics”

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-03-20 DOI: 10.1016/j.aop.2025.170004

Daniel P. Arovas , Anupam Garg

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