Modern Physics Letters A最新文献_第9页

Oscillating quintom scenario with time-dependent periodic deceleration parameter 具有随时间变化的周期性减速参数的振荡五子棋方案

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-12-09 DOI: 10.1142/s0217732323501717

M. Ilyas, A. R. Athar

引用次数: 0

Euclidean Wormhole with k-essence field in the presence of Gauss–Bonnet term 存在高斯-波奈特项的 k-ence场欧氏虫洞

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-29 DOI: 10.1142/s021773232350150x

M. K. Dutta, G. Biswas, B. Modak

引用次数: 0

Erratum: Particle motion around Schwarzschild-MOG black hole 勘误： Schwarzschild-MOG 黑洞周围的粒子运动

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-27 DOI: 10.1142/s0217732323920025

M. Boboqambarova, B. Turimov, A. Abdujabbarov

引用次数: 0

On soliton solutions, periodic wave solutions, asymptotic analysis and interaction phenomena of the (3+1)-dimensional JM equation 论 (3+1)-dimensional JM方程的孤子解、周期波解、渐近分析和相互作用现象

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-25 DOI: 10.1142/s0217732323501183

Yuanyuan Liu, J. Manafian, K. Mahmoud, Baharak Eslami

{"title":"On soliton solutions, periodic wave solutions, asymptotic analysis and interaction phenomena of the (3+1)-dimensional JM equation","authors":"Yuanyuan Liu, J. Manafian, K. Mahmoud, Baharak Eslami","doi":"10.1142/s0217732323501183","DOIUrl":"https://doi.org/10.1142/s0217732323501183","url":null,"abstract":"In this paper, the M-lump solutions, the periodic type, and cross-kink wave solutions are acquired. Here, the Hirota bilinear operator is employed. By utilizing the symbolic computation and employing the utilized method, the (3+1)-dimensional Jimbo–Miwa (JM) equation is investigated. Based on the Hirota bilinear form, the soliton solution and periodic wave solution to the mentioned equation, respectively, are obtained. We gained plenty of multiple collisions of lumps. Next, the periodic wave and cross-kink wave have greatly enriched the existing literature on the JM equation. Through the three-dimensional designs, contour design, density design, and two-dimensional design by using Maple, the physical features of these soliton solutions are explained all right. The forms of the attained solutions are one-lump, two-lumps, and three-lumps wave solutions. Then, a class of rogue waves-type solutions to the (3+1)-dimensional JM equation within the frame of the bilinear equation is found. These results can help us better understand interesting physical phenomena and mechanisms.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139236475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Analytical solutions to the isentropic Euler system with the logarithmic equation of state 具有对数状态方程的等熵欧拉系统的解析解

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-23 DOI: 10.1142/s0217732323501559

Guangpu Lou, Jianwei Dong

引用次数: 0

New method for merging several exponential operators’ product into one exponential operator 将多个指数算子的乘积合并为一个指数算子的新方法

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-22 DOI: 10.1142/s0217732323501584

Chun-Zao Zhang, Hong-Yi Fan

引用次数: 0

Thermodynamics of charged accelerating AdS black hole 带电加速 AdS 黑洞的热力学

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-22 DOI: 10.1142/s0217732323501535

Himanshu Kumar Sudhanshu, S. Upadhyay, D. Singh, Y. Myrzakulov, K. Myrzakulov

{"title":"Thermodynamics of charged accelerating AdS black hole","authors":"Himanshu Kumar Sudhanshu, S. Upadhyay, D. Singh, Y. Myrzakulov, K. Myrzakulov","doi":"10.1142/s0217732323501535","DOIUrl":"https://doi.org/10.1142/s0217732323501535","url":null,"abstract":"In this paper, we provide a thermodynamical study of charged accelerating AdS black holes in the [Formula: see text]-metric. In this connection, we first determine the mass of the given black hole and study their dependence on horizon radius and acceleration. Furthermore, following black hole mechanics, we also derive various quantities like Hawking temperature, entropy, pressure, volume, internal energy, Gibbs energy and Helmholtz energy. With the help of a graph, we study the effect of acceleration on these thermal quantities. Here, we observe that the impact of acceleration becomes more significant on the large horizons. To discuss stability and phase transition, we calculate specific heat. The graphical analysis suggests multiple phase transitions occur for the charged accelerating black hole in AdS spacetime. The system changes state at the critical point, where phase transition occurs. For the small black holes, the critical point at which the phase transition occurs is independent of the acceleration parameter. However, the critical horizon radius for large black holes depends on the acceleration parameter. For fast-accelerating black holes, a phase transition occurs at a small horizon radius to that of slowly accelerating black holes.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139249825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Energy deposition rate for neutrino pair annihilation in the presence of quintessence near neutron star 中子星附近五子星存在时中微子对湮灭的能量沉积率

IF 1.4 4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-22 DOI: 10.1142/s0217732323501560

Coskun Aydin

引用次数: 0

Physical analysis of anisotropic compact stars in f(𝒬) gravity f(𝒬)重力下各向异性致密星的物理分析

4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-10 DOI: 10.1142/s0217732323501523

Muhammad Adeel, M. Zeeshan Gul, Shamaila Rani, Abdul Jawad

{"title":"Physical analysis of anisotropic compact stars in f(𝒬) gravity","authors":"Muhammad Adeel, M. Zeeshan Gul, Shamaila Rani, Abdul Jawad","doi":"10.1142/s0217732323501523","DOIUrl":"https://doi.org/10.1142/s0217732323501523","url":null,"abstract":"The main objective of this study is to investigate the stability and viability of anisotropic compact stellar objects using the Krori–Burua solutions in [Formula: see text] gravity, where [Formula: see text] is a nonmetricity scalar that explains the gravitational effects. We use a static spherical metric in the inner region and Schwarzschild spacetime in the outer region of the Her X-I, SAX J 1808.4-3658 and 4U1820-30 compact stars to investigate their physical properties. By using observed values of the radius and mass of the considered compact stars, the unknown parameters are determined. We use a particular model of this theory to examine the behavior of energy density, pressure components, anisotropy, equation of state parameters and energy constraints in the interior of the proposed stellar objects. The Tolman–Oppenheimer–Volkoff equation is used to analyze the equilibrium state of these stars and causality condition, Herrera cracking method, adiabatic index methods are used to determine their stability. It is found that revolutionary technique sheds new light on the development of observationally accurate gravity model.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135190961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Lévy-Leblond equation and Eisenhart–Duval lift in Koopman–von Neumann mechanics 库普曼-冯-诺伊曼力学中的l<s:1> - leblond方程和Eisenhart-Duval升力

4区物理与天体物理

Modern Physics Letters A Pub Date : 2023-11-10 DOI: 10.1142/s0217732323501493

Bikram Keshari Parida, Abhijit Sen, Shailesh Dhasmana, Zurab K. Silagadze

{"title":"Lévy-Leblond equation and Eisenhart–Duval lift in Koopman–von Neumann mechanics","authors":"Bikram Keshari Parida, Abhijit Sen, Shailesh Dhasmana, Zurab K. Silagadze","doi":"10.1142/s0217732323501493","DOIUrl":"https://doi.org/10.1142/s0217732323501493","url":null,"abstract":"The Koopman–von Neumann (KvN) mechanics is an approach that was formulated long ago to answer the question regarding the existence of a Hilbert space representation of classical mechanics. KvN mechanics is a non-relativistic theory, and it is not clear how spin can be included in it, since spin is widely regarded as a relativistic property. Cabrera et al., in Eur. Phys. J. Spec. Top. 227, 2195 (2019) argued that the Spohn equation [Spohn, Ann. Phys. 282, 420 (2000)] is the correct classical framework for the Koopman–von Neumann theory corresponding to the Dirac equation. However, after Lévy-Leblond’s seminal work on this topic, it became clear that spin naturally arises also from the Galilean invariant wave equations, without any need of relativistic considerations. Inspired by this, we propose another possibility of including spin in the KvN formalism: the Lévy-Leblond equation in the Koopman–von Neumann formalism can be obtained as a null reduction of the massless Dirac equation in the Eisenhart–Duval lift metric. To illustrate the idea, we implement it for a one-dimensional classical system without magnetic interactions.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135191919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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