Annals of Physics最新文献_第9页

Refining bounds for Snyder and GUP models through seismic wave analysis 通过地震波分析提炼Snyder和GUP模型的边界

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-07-05 DOI: 10.1016/j.aop.2025.170136

Aleksander Kozak , Anna Pachoł , Aneta Wojnar

引用次数: 0

Enhanced quantum Mpemba effect with squeezed thermal reservoirs 压缩热储层增强量子Mpemba效应

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-07-05 DOI: 10.1016/j.aop.2025.170135

J. Furtado , Alan C. Santos

{"title":"Enhanced quantum Mpemba effect with squeezed thermal reservoirs","authors":"J. Furtado , Alan C. Santos","doi":"10.1016/j.aop.2025.170135","DOIUrl":"10.1016/j.aop.2025.170135","url":null,"abstract":"<div><div>The phenomenon where a quantum system can be exponentially accelerated to its stationary state has been referred to as the Quantum Mpemba Effect (QMpE). Due to its analogy with the classical Mpemba effect, <em>hot water freezes faster than cold water</em>, this phenomenon has garnered significant attention. Although QMpE has been characterized and experimentally verified in different scenarios, the sufficient and necessary conditions to achieve such a phenomenon are still under investigation. In this paper, we address a sufficient condition for QMpE through a general approach for open quantum system dynamics. With the help of the <em>Mpemba parameter</em> introduced in this work to quantify how strong the QMpE can be, we discuss how our conditions can predict and explain the emergence of weak and strong QMpE in a robust way. As an application, by harnessing the intrinsic non-classical nature of squeezed thermal environments, we show how enhanced QMpE can be effectively induced when our conditions are met. We demonstrate that when the system interacts with thermal reservoirs, <em>a hot qubit freezes faster than a cold qubit</em> in the presence of squeezing. Our results provide tools and new insights, opening a broad avenue for further investigation at the most fundamental levels of this peculiar phenomenon in the quantum realm.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"480 ","pages":"Article 170135"},"PeriodicalIF":3.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144580465","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-Hermitian gravitational wave scattering 非厄米引力波散射

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-07-04 DOI: 10.1016/j.aop.2025.170109

Burak Pekduran , Mustafa Sarısaman , Ekrem Aydıner

引用次数: 0

On a new class of non-Abelian transverse progressive waves 一类新的非阿贝尔横进行波

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-07-04 DOI: 10.1016/j.aop.2025.170149

Alexander S. Rabinowitch

引用次数: 0

Fractonic self-duality and covariant magnetic fractons 分形自对偶与协变磁分形

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-07-03 DOI: 10.1016/j.aop.2025.170138

Erica Bertolini, Giandomenico Palumbo

引用次数: 0

A gravastar model with Durgapal—Fuloria metric potential 具有Durgapal-Fuloria度量势的重力星模型

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-06-30 DOI: 10.1016/j.aop.2025.170129

Meghanil Sinha, S. Surendra Singh

{"title":"A gravastar model with Durgapal—Fuloria metric potential","authors":"Meghanil Sinha, S. Surendra Singh","doi":"10.1016/j.aop.2025.170129","DOIUrl":"10.1016/j.aop.2025.170129","url":null,"abstract":"<div><div>In this present work, we have proposed a novel gravastar model as a viable alternative model to the black hole(BH) theory by using the Durgapal-Fuloria metric potential in a <span><math><mrow><mo>(</mo><mn>3</mn><mo>+</mo><mn>1</mn><mo>)</mo></mrow></math></span> dimensional framework which overcomes the central singularity and event horizon problem. Mazur and Motolla(M-M) introduced the idea of gravitational vacuum condensate star(gravastar) by studying the Bose–Einstein condensation in the gravitational systems. The gravastar solution featured an interior de-Sitter spacetime along with an external Schwarzschild space–time. A thin shell separates the de-Sitter interior from the exterior region. By utilizing the Durgapal-Fuloria metric potential, the other metric potential in the interior and the shell region have been determined that eliminates the singularity. We have examined the shell region comprising of ultra-relativistic plasma such as proper length, energy and entropy and they are found to be increasing with increasing thickness. Furthermore, we have analyzed the junction conditions that match the interior and the exterior spacetimes, it is observed that the surface energy density and surface pressure are decreasing with increasing thickness. The analysis of speed of sound predicts the stability of the gravastar model. Thus our results yield a complete family of exact solutions for the gravatsar, which are not only non-singular but also stable.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"480 ","pages":"Article 170129"},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548901","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

Vacuum homogeneous and nonhomogeneous metrics with conventional and quantized metric tensor: Singular or nonsingular solution 具有常规和量子化度量张量的真空齐次和非齐次度量：奇异或非奇异解

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-06-30 DOI: 10.1016/j.aop.2025.170127

A. Tawfik , S.G. Elgendi , M. Hanafy

{"title":"Vacuum homogeneous and nonhomogeneous metrics with conventional and quantized metric tensor: Singular or nonsingular solution","authors":"A. Tawfik , S.G. Elgendi , M. Hanafy","doi":"10.1016/j.aop.2025.170127","DOIUrl":"10.1016/j.aop.2025.170127","url":null,"abstract":"<div><div>To investigate whether the Universe underwent a singularity or maintained a nonsingular state, we carry out analytical and numerical analyses of the evolution of the Raychaudhuri equations in vacuum, alongside homogeneous and nonhomogeneous cosmic backgrounds. The results obtained from the Schwarzschild, Friedmann–Lemaître–Robertson–Walker (FLRW), and Einstein–Gilbert–Straus (EGS) metrics are systematically compared. Analyzing the results from both, conventional and quantized metric tensor, it revealed insights into the nature of initial and spatial singularities. Results associated with the Schwarzschild metric demonstrate a positive evolution that corresponds with a reduction in radial distance (nonsingularity). In contrast, the proposed quantization reverses this trend, leading to a negative evolution (singularity). The situation is similar for the FLRW metric, where the suggested quantization results in a positive evolution as cosmic time decreases, in contrast to the classical and hybrid metrics, which are associated with negative evolution. The analysis of the EGS metric reveals that classical evolution remains positively oriented, particularly with a reduction in radial distance. Moreover, the introduction of quantized and hybrid metric tensors fully retrains the cosmic time dependence. The results obtained are a rightful recognition of the substantial efforts dedicated to the establishment of the Swiss-cheese model, demonstrating that the EGS metric indeed facilitates the temporal and spatial development of our Universe.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"480 ","pages":"Article 170127"},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563711","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

Classical double copy in the black hole mini-superspace 黑洞迷你超空间的经典双重复制

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-06-27 DOI: 10.1016/j.aop.2025.170133

Gökhan Alkaç , Mehmet Kemal Gümüş , Mehmet Ali Olpak

引用次数: 0

Damped photonic modes in helical graphene 螺旋石墨烯中的阻尼光子模式

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-06-27 DOI: 10.1016/j.aop.2025.170132

Abdullah Guvendi , Omar Mustafa , Abdulkerim Karabulut

{"title":"Damped photonic modes in helical graphene","authors":"Abdullah Guvendi , Omar Mustafa , Abdulkerim Karabulut","doi":"10.1016/j.aop.2025.170132","DOIUrl":"10.1016/j.aop.2025.170132","url":null,"abstract":"<div><div>We analyze the behavior of spin-1 vector bosons in helical spacetime, focusing on photonic modes in helical graphene structures. We model the helical graphene surface as a smooth, continuous, and distortion-free manifold, effectively adopting the continuum approximation. By solving the fully covariant vector boson equation, we derive exact solutions that describe the quantum states of photons in a curved helical background, revealing their energy spectra, mode profiles, and decay dynamics. We find that the decay times of damped photonic modes range from <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>16</mn></mrow></msup></mrow></math></span> to <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>13</mn></mrow></msup></mrow></math></span> s as the helical pitch (<span><math><mi>a</mi></math></span>) varies from <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> nanometers to 1 nanometer, indicating that the structure efficiently absorbs all photonic modes. Additionally, the probability density functions exhibit time dependence, complementing their spatial variation. These findings provide a foundation for the design of ultrafast graphene photodetectors, graphene photodevices for high-speed optical communications, advanced photonic devices, and quantum materials based on helical graphene for various nanophotonic applications.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"480 ","pages":"Article 170132"},"PeriodicalIF":3.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518451","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

Weather forecast for vacuum fluctuations in QED QED中真空波动的天气预报

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2025-06-27 DOI: 10.1016/j.aop.2025.170131

Maximilian Koegler , Marc Schneider

引用次数: 0