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被 quintessence 包围的 dyonic NED-AdS 黑洞的热力学、焦耳-汤姆逊膨胀与 Ruppeiner 几何

Thermodynamics, Joule-Thomson Expansion and Ruppeiner Geometry of a Dyonic NED-AdS Black Hole Surrounded by Quintessence

Djedai Ayang Kamo, Saleh Mahamat, Ragil Brand Tsafack Ndongmo, Kamiko Kouemeni Jean Rodrigue, Thomas Bouetou Bouetou, Timoleon Crepin Kofane

arXiv 2608.24117首次发表:更新:

AI 中文总结

该研究探讨被 quintessence 包围的 dyonic NED-AdS 黑洞的热力学特性,推导相关物理量的解析表达式,分析各参数对其相变、膨胀及微观相互作用的影响,揭示多因素对黑洞宏观与微观性质的重塑作用。

AI 中文摘要

我们研究了被 quintessence 包围的非线性电动力学(nonlinear electrodynamics, NED)中的 dyonic Reissner-Nordström-AdS 黑洞的热力学性质、焦耳-汤姆逊(Joule-Thomson)膨胀及微观结构。在扩展相空间形式框架内,推导了质量、霍金温度、状态方程、热容、吉布斯自由能、焦耳-汤姆逊系数及 Ruppeiner 曲率的解析表达式。系统研究了非线性电动力学参数 $\boldsymbol{\boldsymbol{\omega}}$、quintessence 参数 $(c,\epsilon)$、dyonic 电荷 $Q$ 及压强 $P$ 的影响。温度分布与状态方程呈现类范德瓦尔斯(Van der Waals)相结构,其临界点受 quintessence 和非线性电动力学贡献的强烈修正。热容与吉布斯自由能进一步揭示了对应的热力学稳定性与相变行为。焦耳-汤姆逊分析显示出被反转点分隔的 distinct 冷却与加热区域;特别地,quintessence 通常会降低临界温度与反转温度,而增大电荷并改变非线性参数会显著变形反转结构。Ruppeiner 曲率在临界区域附近呈现明显峰值与符号变化,表明存在强热力学关联及交替的吸引与排斥有效微观相互作用。极限情况 $\boldsymbol{\omega\sim1}$、$\boldsymbol{c\sim0}$ 与 $\boldsymbol{Q\sim0}$ 分别一致地恢复了对应麦克斯韦(Maxwell)、无 quintessence 及中性黑洞的行为。这些结果表明,非线性电动力学、dyonic 电荷、quintessence 与 AdS 压强的综合效应,极大地重塑了黑洞的宏观相结构与有效微观相互作用。

英文摘要

We investigate the thermodynamic properties, Joule-Thomson expansion, and microscopic structure of a dyonic Reissner-Nordström-AdS black hole in nonlinear electrodynamics surrounded by quintessence. Within the extended phase-space formalism, analytical expressions for the mass, Hawking temperature, equation of state, heat capacity, Gibbs free energy, Joule-Thomson coefficient, and Ruppeiner curvature are derived. The effects of the nonlinear-electrodynamics parameter $ω$, the quintessence parameters $(c,ε)$, the dyonic charge $Q$, and the pressure $P$ are systematically investigated. The temperature profiles and equation of state exhibit a Van der Waals--like phase structure, with critical points strongly modified by the quintessence and nonlinear electrodynamivs contributions. The heat capacity and Gibbs free energy further reveal the corresponding thermodynamic stability and phase-transition behaviour. The Joule-Thomson analysis shows distinct cooling and heating regions separated by inversion points. In particular, quintessence generally lowers the critical and inversion temperatures, while increasing the charge and varying the nonlinear parameter significantly deform the inversion structure. The Ruppeiner curvature exhibits pronounced peaks and sign changes near critical regions, indicating strong thermodynamic correlations and alternating attractive and repulsive effective microscopic interactions. The limiting cases $ω\sim 1$, $c\sim 0$, and $Q\sim 0$ consistently recover the corresponding Maxwell, no-quintessence, and neutral black hole behaviours. These results demonstrate that the combined effects of nonlinear electrodynamics, dyonic charge, quintessence, and AdS pressure substantially reshape both the macroscopic phase structure and the effective microscopic interactions of the black hole.

Comments28 pages, 36 figures

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