期刊
PHYSICS LETTERS B
卷 807, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2020.135556
关键词
Black hole thermodynamics; Hayward-AdS black hole; Extended phase space; Ruppeiner geometry; Black hole microstructure; Repulsive interactions
资金
- U.G.C. Govt.
We study the interaction between the microstructures of Hayward-AdS black hole using Ruppeiner geometry. Our investigation shows that the dominant interaction between the black hole molecules is attractive in most part of the parametric space of temperature and volume, as in van der Waals system. However, in contrast to the van der Waals fluid, there exists a weak dominant repulsive interaction for small black hole phase in some parameter range. This result clearly distinguishes the interactions in a magnetically charged black hole from that of van der Waals fluid. However, these sort of interactions are characteristic for charged black holes since they do not dependent on magnetic charge or temperature. (C) 2020 The Author(s). Published by Elsevier B.V.
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