Phase transition in modified thermodynamics of Kerr-AdS black holes

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外文摘要：In this study,we investigate the critical phenomena of Kerr-AdS black holes under the modified first law of thermodynamics.Specifically,we considered modified black hole thermodynamics that exhibit a van der Waals-like phase structure.All critical exponents were calculated,and then,a swallowtail diagram of free energy was plot-ted.Comparing with existing results,the main difference is the correspondence between the thermal quantities of Kerr-AdS black holes and the van der Waals system.In a previous study[Y.D.Tsai,X.N.Wu,and Y.Yang,Phys.Rev.D 85 044005(2012)],the correspondence was(ΩH,J)→(V,P),while in our study,the correspondence was(J,(Ω)H)→(V,P).This difference was owing to the rotating effect.The modified black hole thermodynamics were associated with rotating observers.The free energy in such a reference contains extra rotating energy,which induces a Legendre transformation in the((Ω)H,J)cross-section,causing the difference in correspondence.

外文关键词：

Kerr-AdS black holeblack hole thermodynamicsphase transition of black hole

作者：

刘琴、吴小宁、张晓

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作者单位：

School of Physical Science and Technology,Guangxi University,Nanning 530004,China

Institute of Mathematics,Academy of Mathematics and Systems Science and Hua Loo-Keng Laboratory,Chinese Academy of Sciences,Beijing 100190,China

School of Mathematical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

Guangxi Center for Mathematical Research,Guangxi University,Nanning 530004,China

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出版年：

2025

DOI：

10.1088/1674-1137/ad8a3a

中国物理C(英文版)

中国物理学会　中国科学院高能物理研究所　中国科学院近代物理研究所

中国物理C(英文版)

影响因子：0.347

ISSN：1674-1137

年,卷(期)：2025.49(1)