Entropy of the electrically charged hairy black holes

Entropy of the electrically charged hairy black holes
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带电毛状黑洞的熵

DOI:
10.1140/epjc/s10052-018-6254-6
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发表时间:
2018-09
期刊:
Eur. Phys. J. C
影响因子:
--
通讯作者:
Yu Pan
Yu Pan
中科院分区:
其他
文献类型:
--
作者:
Yu-Bo Ma;Li-Chun Zhang;Shuo Cao;Tonghua Liu;Shuaibo Geng;Tengpeng Xu;Yuting Liu;Yu Pan

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本文讨论了de Sitter时空中高维带电毛状黑洞的有效热力学量,考虑了黑洞视界与宇宙视界之间的关联。我们的结果表明,由两个视界位置决定的相互作用项对de Sitter时空的总熵有显著的贡献。此外,与AdS时空中的情况不同,我们发现在一定条件下的零级和二级相变,与一级相变的情况下,在带电的毛茸茸的黑洞。这些结果有力地支持的分类相变Escherichfest的方程。更有趣的是,我们的分析证明了在临界点的Escherichfest方程的有效性,和fscheriche指出的Prigogine-Defay(PD)比之间的ECBH时空和AdS时空的相似性。
In this paper, we discuss the effective thermodynamic quantities of higher dimensional electrically charged hairy black holes in de Sitter spacetime, considering the correlation between the black hole horizon and the cosmological horizon. Our results show that, the interaction term determined by the position of the two horizons could significantly contribute to the total entropy of de Sitter spacetime. Moreover, different from the case in AdS spacetime, we find both zero-order and second-order phase transitions under certain conditions, with the absence of first-order phase transition in the electrically charged hairy black holes. These results are strongly supported by the classification of phase transition in Ehrenfest’s equations. More interestingly, our analysis demonstrates the validity of the Ehrenfest equations at the critical point, and futhermore indicates the similarity of Prigogine–Defay (PD) ratio between ECBH spacetime and AdS spacetime.
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