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arXiv 2009.03519hep-th
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两个regular-AdS黑洞热力学行为的比较

Comparison of thermodynamic behaviors of two regular-AdS black holes

Sen Guo, Ya-Ling Huang, En-Wei Liang

摘要:

将反德西特(AdS)背景的负宇宙学常数视为扩张相空间中的正热力学压力,通过研究$P-\upsilon$临界相变和冷热相变,研究了规则Hayward-AdS(HAdS)黑洞的热力学行为.比较了HAdS BH和Bardeen-AdS(BAdS)BH在两个热力学过程上的差异。发现BAdS BH的相变更倾向于范德华(vdW)相变。对于冷热相变,我们发现在相同的压力和磁荷下,HAdS BH的反转曲线总是高于BAdS BH。我们还比较了最小的存在质量,零温度残余,和临界磁荷。结果表明,海沃德黑洞的内视界和外视界更容易合并,奇点更容易暴露。

英文摘要:

Considering the negative cosmological constant of an anti-de Sitter (AdS) background as a positive thermodynamic pressure in the extended phase space, we study the thermodynamic behaviors of the regular Hayward-AdS (HAdS) black hole (BH) by investigating $P-\upsilon$ critical and cooling-heating phase transition. We compare the difference of two thermodynamic processes between the HAdS BH and the Bardeen-AdS (BAdS) BH. It is found that the phase transition of the BAdS BH tends to be more the van der Waals (vdW) phase transition. For the cooling-heating phase transition, we find the inversion curves of the HAdS BH are always higher than the BAdS BH under the same pressure and magnetic charge. We also compare the smallest existence mass, the zero-temperature remnant, and the critical magnetic charge. The results suggest that the inner horizon and the outer horizon of the Hayward BH are easier to merge, and the singularity is easier to expose.

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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