Annals of Physics最新文献

Encoding quantum bits in bound electronic states of a graphene nanotorus

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-26 DOI: 10.1016/j.aop.2024.169862

J. Furtado , A.C.A. Ramos , J.E.G. Silva , R. Bachelard , Alan C. Santos

引用次数: 0

Null geodesics around a black hole with weakly coupled global monopole charge 具有弱耦合全局单极电荷的黑洞周围的空测地线

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-24 DOI: 10.1016/j.aop.2024.169863

Mohsen Fathi , J.R. Villanueva , Thiago R.P. Caramês , Alejandro Morales-Díaz

引用次数: 0

Schwarzschild black hole surrounded by perfect fluid dark matter in the presence of quintessence matter field 存在五重物质场的完美流体暗物质包围的施瓦兹柴尔德黑洞

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-23 DOI: 10.1016/j.aop.2024.169861

B. Hamil , B.C. Lütfüoğlu

{"title":"Schwarzschild black hole surrounded by perfect fluid dark matter in the presence of quintessence matter field","authors":"B. Hamil , B.C. Lütfüoğlu","doi":"10.1016/j.aop.2024.169861","DOIUrl":"10.1016/j.aop.2024.169861","url":null,"abstract":"<div><div>In this paper, we present an exact solution for a spherically symmetric Schwarzschild black hole surrounded by perfect fluid dark matter (PFDM) in the presence of a quintessence field. We investigate the impact of dark matter on the black hole’s thermodynamic and optical properties, as well as its quasinormal modes. Our analysis reveals a critical radius where the heat capacity becomes positive, indicating the thermodynamic stability of the black hole. Notably, this critical radius increases with the dark matter parameter <span><math><mi>α</mi></math></span>. Additionally, we find that as the effects of dark matter increase, the black hole’s shadow radius decreases. Using the WKB approximation, we show that the quasinormal mode spectrum differs from that of a standard Schwarzschild black hole due to the influence of PFDM. Moreover, we demonstrate that as <span><math><mi>α</mi></math></span> increases, both the real part and the magnitude of the imaginary part of the quasinormal mode frequencies increase. This suggests that field perturbations decay more rapidly in the presence of PFDM compared to those in a Schwarzschild black hole.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169861"},"PeriodicalIF":3.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719962","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

Constraint on the equation of state of strange quark star: Perturbative QCD along with a density-dependent bag constant 奇异夸克星状态方程的约束：惯性 QCD 以及与密度相关的包常数

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-23 DOI: 10.1016/j.aop.2024.169864

J. Sedaghat, G.H. Bordbar, S.M. Zebarjad

{"title":"Constraint on the equation of state of strange quark star: Perturbative QCD along with a density-dependent bag constant","authors":"J. Sedaghat, G.H. Bordbar, S.M. Zebarjad","doi":"10.1016/j.aop.2024.169864","DOIUrl":"10.1016/j.aop.2024.169864","url":null,"abstract":"<div><div>This study investigates the structural properties of strange quark stars (SQS) using a Quantum Chromodynamics (QCD) perturbative model combined with the latest Particle Data Group dataset. Given the energy scale present in compact stars, QCD perturbation theory alone may not fully explain their structure. To account for non-perturbative contributions, we incorporate a density-dependent effective bag parameter, <span><math><mi>B</mi></math></span>, and derive the equation of state (EOS) for strange quark matter (SQM). We start by demonstrating the limitations of EOSs with a constant <span><math><mi>B</mi></math></span> in describing massive objects with <span><math><mrow><msub><mrow><mi>M</mi></mrow><mrow><mi>T</mi><mi>O</mi><mi>V</mi></mrow></msub><mo>></mo><mn>2</mn><msub><mrow><mi>M</mi></mrow><mrow><mo>⊙</mo></mrow></msub></mrow></math></span>. Subsequently, we show that considering <span><math><mi>B</mi></math></span> as a density-dependent function significantly changes the results. Our definition of <span><math><mi>B</mi></math></span> includes two parameters determined by both theoretical and observational constraints. We demonstrate that incorporating a density-dependent <span><math><mi>B</mi></math></span> into the perturbative EOS can yield SQSs with masses exceeding <span><math><mrow><mn>2</mn><msub><mrow><mi>M</mi></mrow><mrow><mo>⊙</mo></mrow></msub></mrow></math></span>, while complying with gravitational wave constraints such as tidal deformability, and thermodynamic considerations, including stability conditions and speed of sound behavior. Specifically, we show that massive compact objects like PSR J0952-0607, PSR J2215+5135, PSR J0740+6620, and the secondary mass of GW190814 can be SQSs. Additionally, we compare our EOS with the EOS of the authors who use a generalized polytropic form with adjustable parameters and obtain an interesting result.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169864"},"PeriodicalIF":3.0,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142719965","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

Impact of Tolman–Kuchowicz solution on dark energy compact stars in f(R) theory 托尔曼-库霍维奇（Tolman-Kuchowicz）解对 f(R) 理论中暗能量紧凑星的影响

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-19 DOI: 10.1016/j.aop.2024.169854

Mariyah Aslam , Adnan Malik

{"title":"Impact of Tolman–Kuchowicz solution on dark energy compact stars in f(R) theory","authors":"Mariyah Aslam , Adnan Malik","doi":"10.1016/j.aop.2024.169854","DOIUrl":"10.1016/j.aop.2024.169854","url":null,"abstract":"<div><div>In this study, we model a new relativistic dark energy star by enforcing a static and isotropic spherically symmetric fluid distribution within the framework of <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity, utilizing the Starobinsky model in the field equations. The analysis is conducted using the Tolman–Kuchowicz metric potentials and by employing the equation of state which models dark energy with its density proportional to the isotropic perfect fluid density. By applying junction conditions and considering the Schwarzschild solution as the exterior geometry, we compute the unknown parameters of the constructed model. The physical plausibility of the model is thoroughly examined, ensuring the regularity and consistency of metric functions and matter variables. We analyze energy conditions to confirm the system’s physical realism and derive the mass–radius relationship along with gravitational redshift, providing significant insights into the structure of the compact star candidate 4U 1820-30. The hydrostatic equilibrium is evaluated using the TOV equation, while stability is determined through the causality condition and adiabatic index. The results demonstrate that the proposed model, for the chosen values of the model parameter, is physically consistent and satisfies all necessary stability criteria, providing a viable and realistic description of a compact stellar structure influenced by dark energy.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169854"},"PeriodicalIF":3.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700802","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

Study of asymptotic free scalar field theories from adaptive perturbation method 从自适应扰动法研究渐近自由标量场理论

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-19 DOI: 10.1016/j.aop.2024.169856

Chen-Te Ma , Hui Zhuang

{"title":"Study of asymptotic free scalar field theories from adaptive perturbation method","authors":"Chen-Te Ma , Hui Zhuang","doi":"10.1016/j.aop.2024.169856","DOIUrl":"10.1016/j.aop.2024.169856","url":null,"abstract":"<div><div>We focus on the behavior of (2+1)d <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>4</mn></mrow></msup></mrow></math></span> and (5+1)d <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> or <span><math><mrow><mi>λ</mi><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theories in different regimes and compare the results obtained from the adaptive perturbation method with those obtained from lattice simulation. These theories are simple models that exhibit asymptotic freedom, which is a property that is also observed in more complex theories such as QCD, which describes the strong interaction between quarks and gluons. Asymptotic freedom is an important feature of these theories because it allows for a perturbative treatment of interactions at high energies. However, the standard perturbation scheme breaks down in the presence of strong interactions, and the adaptive perturbation method, which involves resuming the Feynman diagrams, is more suitable for studying these interactions. Our research involves comparing the perturbation result to lattice simulation. In the case of the <span><math><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> theory, there is no stable vacuum, so we explore evidence from the <span><math><mrow><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theory instead. Our results appear to show that resummation improves the strong coupling result for both the <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>4</mn></mrow></msup></mrow></math></span> and <span><math><mrow><mi>λ</mi><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theories. Additionally, we improve the resummation method for the three-point coupling vertex and study the RG flow to analyze the resummation contribution and theoretical properties.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169856"},"PeriodicalIF":3.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700799","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

Photonic properties of 1D multilayered structures based on quasiperiodic Rudin–Shapiro sequence 基于准周期鲁丁-夏皮罗序列的一维多层结构的光子特性

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-19 DOI: 10.1016/j.aop.2024.169860

Marco A. Tun-Carrillo , Miguel E. Mora-Ramos , Hernán A. Gómez-Urrea , Ignacio V. Pérez-Quintana

引用次数: 0

Probing the solar system for dark matter using the Sagnac effect 利用萨格纳克效应探测太阳系中的暗物质

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-18 DOI: 10.1016/j.aop.2024.169859

A.D.S. Souza , C.R. Muniz , R.M.P. Neves , M.B. Cruz

引用次数: 0

Lorentz covariant physical Brownian motion: Classical and quantum 洛伦兹协变物理布朗运动：经典与量子

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-16 DOI: 10.1016/j.aop.2024.169857

Henryk Gzyl

引用次数: 0

Sagnac effect and quantum Hall effect in rotating GaAs/Ga1−xAlxAs systems 旋转砷化镓/砷化镓-xAlxAs 系统中的萨格纳克效应和量子霍尔效应

IF 3 3区物理与天体物理

Annals of Physics Pub Date : 2024-11-16 DOI: 10.1016/j.aop.2024.169858

Cleverson Filgueiras , Moises Rojas , Denise Assafrão , A.G. de Lima

{"title":"Sagnac effect and quantum Hall effect in rotating GaAs/Ga1−xAlxAs systems","authors":"Cleverson Filgueiras , Moises Rojas , Denise Assafrão , A.G. de Lima","doi":"10.1016/j.aop.2024.169858","DOIUrl":"10.1016/j.aop.2024.169858","url":null,"abstract":"<div><div>This study investigates the intricate interplay between inertial effects and the quantum Hall effect (QHE) in two-dimensional electron systems (2DEGs), specifically in a <span><math><mrow><mi>G</mi><mi>a</mi><mi>A</mi><mi>s</mi><mo>/</mo><mi>G</mi><msub><mrow><mi>a</mi></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub><mi>A</mi><msub><mrow><mi>l</mi></mrow><mrow><mi>x</mi></mrow></msub><mi>A</mi><mi>s</mi></mrow></math></span> system. We analyze how hydrostatic pressure, temperature, and aluminum concentration influence the effective electronic mass and consequently modify the energy levels of the system. A key aspect of our work is the distinction between effective mass and gravitational mass, which plays a crucial role in the behavior of electrons under inertial forces. The Hamiltonian incorporates the Sagnac effect, revealing distinct behaviors in the energy structure of a rotating 2DEG under a perpendicular magnetic field. Our results demonstrate that rotational motion breaks the degeneracy of Landau levels, resulting in a complex energy spectrum that significantly impacts Hall conductivity. We show that the Hall conductivity is enhanced by the rotational motion and is sensitive to variations in the effective mass due to changes in aluminum concentration and pressure. These findings provide crucial insights into the dynamics of 2DEGs in rotating frames and highlight the need to account for inertial effects in future theoretical and experimental studies of quantum systems.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169858"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700801","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