Thermal behavior of generalized black-bounce black holes

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2025-09-25 DOI:10.1140/epjc/s10052-025-14805-7

Allan R. P. Moreira, Abdelmalek Bouzenada, Shi-Hai Dong, Guo-Hua Sun, Faizuddin Ahmed

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Abstract

In this work, we tested the thermal behavior of a class of regular black hole (BH) solutions defined as generalized black-bounce space-times. We introduce several novel configurations governed by different mass functions and geometric deformations, illustrated by parameters controlling regularity and horizon structure. Using the Hamilton–Jacobi tunneling method, we compute the Hawking temperature associated with each model and analyze its dependence on the underlying parameters. We find that all proposed geometries are free of curvature singularities and exhibit positive, well-defined quasi-local masses in the Hernandez–Misner–Sharp (HMS) formalism. Also, we demonstrate that these models may possess multiple horizons, including extremal and asymmetric cases, while typically violating classical energy conditions in the vicinity of the bounce. Our results show and illustrate the structure and thermodynamic stability of these regular solutions.

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广义黑反弹黑洞的热行为

在这项工作中，我们测试了一类定义为广义黑弹跳时空的规则黑洞（BH）解的热行为。我们介绍了几种由不同质量函数和几何变形控制的新构型，通过参数控制规律和水平结构来说明。利用Hamilton-Jacobi隧穿方法，我们计算了与每个模型相关的霍金温度，并分析了其与底层参数的依赖关系。我们发现所有提出的几何形状都没有曲率奇点，并且在Hernandez-Misner-Sharp （HMS）形式主义中表现出正的，定义良好的准局部质量。此外，我们还证明了这些模型可能具有多个视界，包括极端和不对称情况，而通常在反弹附近违反经典能量条件。我们的结果显示并说明了这些规则解的结构和热力学稳定性。

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

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.