Thermodynamic analysis of black holes with cloud of strings and quintessence via Barrow entropy

IF 4.5 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS

Physics Letters B Pub Date : 2025-04-03 DOI:10.1016/j.physletb.2025.139446

Usman Zafar , Kazuharu Bamba , Tabinda Rasheed , Krishnakanta Bhattacharya

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引用次数: 0

Abstract

We explore a Reissner-Nordström Anti-de Sitter (RN-AdS) black hole with a cloud of string and quintessence to study thermodynamics and thermodynamic topology in the presence of Barrow entropy, which is currently being used widely as the horizon of a black hole may not be a smooth surface as described in classical general relativity but instead could have a more intricate fractal-like structure. Here, we study the impact of the fractal correction parameter of Barrow entropy on the thermodynamics of such BHs. We compute the first law of black hole thermodynamics and the Smarr relation for RN-AdS black hole with a cloud of string and quintessence in terms of Barrow entropy by employing the generalized formula for spherically symmetric spacetime which is directly derived from the Einstein field equation. The significance of Barrow entropy has been verified from thermodynamic topology as well. We also found that the non-zero topological charge indicates the presence of the critical point.

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通过巴罗熵对带有弦云和五元体的黑洞进行热力学分析

我们探索了一个含有弦和精质云的Reissner-Nordström反德西特（RN-AdS）黑洞，以研究巴罗熵存在下的热力学和热力学拓扑结构。目前，巴罗熵被广泛使用，因为黑洞的视界可能不是经典广义相对论中描述的光滑表面，而是可能具有更复杂的分形结构。本文研究了巴罗熵的分形校正参数对这类黑洞热力学的影响。本文利用由爱因斯坦场方程直接导出的球对称时空广义公式，用Barrow熵计算了具有弦和精云的RN-AdS黑洞的热力学第一定律和Smarr关系。从热力学拓扑学的角度验证了巴罗熵的意义。我们还发现非零拓扑电荷表明临界点的存在。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physics Letters B 物理-物理：综合

CiteScore

9.10

自引率

6.80%

发文量

647

审稿时长

3 months

期刊介绍： Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.