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arXiv 1905.07155gr-qc
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Gauss-Bonnet引力下扩展相空间中的Hawking-Page相变

The Hawking-Page phase transitions in the extended phase space in the Gauss-Bonnet gravity

Bing-Yu Su, Yuan-Yuan Wang, Nan Li

摘要:

在扩展相空间中,利用Gauss-Bonnet项研究了黑洞与热反德西特(AdS)空间之间的Hawking-Page相变,其中变化的宇宙学常数起着有效热力学压力的作用. Gauss-Bonnet项通过对黑洞熵和吉布斯自由能的修正来体现其作用。本文首先对Schwarzschild-AdS黑洞,然后对巨正则系综中带电旋转的AdS黑洞的全局相结构,特别是相变温度$T_{\rm HP}$和吉布斯自由能$G$进行了系统的研究.发现共存线存在端点,并且$T_{\rm HP}$在较大的电势和角速度下减小,并随Gauss-Bonnet耦合常数$α$的增大而减小.

英文摘要:

In this paper, the Hawking-Page phase transitions between the black holes and thermal anti-de Sitter (AdS) space are studied with the Gauss-Bonnet term in the extended phase space, in which the varying cosmological constant plays the role of an effective thermodynamic pressure. The Gauss-Bonnet term exhibits its effects via introducing the corrections to the black hole entropy and Gibbs free energy. The global phase structures, especially the phase transition temperature $T_{\rm HP}$ and the Gibbs free energy $G$, are systematically investigated, first for the Schwarzschild-AdS black holes and then for the charged and rotating AdS black holes in the grand canonical ensembles, with both analytical and numerical methods. It is found that there are terminal points in the coexistence lines, and $T_{\rm HP}$ decreases at large electric potentials and angular velocities and also decreases with the Gauss-Bonnet coupling constant $α$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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