QED effects on phase transition and Ruppeiner geometry of Euler-Heisenberg-AdS black holes  

作　　者：Xu Ye Zi-Qing Chen Ming-Da Li Shao-Wen Wei 叶旭;陈子青;李明达;魏少文(Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China;Institute of Theoretical Physics&Research Center of Gravitation,Lanzhou University,Lanzhou 730000,China;Academy of Plateau Science and Sustainability,Qinghai Normal University,Xining 810016,China)

机构地区：[1]Lanzhou Center for Theoretical Physics,Key Laboratory of Theoretical Physics of Gansu Province,School of Physical Science and Technology,Lanzhou University,Lanzhou 730000,China [2]Institute of Theoretical Physics&Research Center of Gravitation,Lanzhou University,Lanzhou 730000,China [3]Academy of Plateau Science and Sustainability,Qinghai Normal University,Xining 810016,China

出　　处：《Chinese Physics C》2022年第11期291-307,共17页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China(12075103,11675064,12047501);the 111 Project(B20063)。

摘　　要：Considering the quantum electrodynamics(QED)effect,we study the phase transition and Ruppeiner geometry of Euler-Heisenberg anti-de Sitter black holes in the extended phase space.For negative and small positive QED parameters,we observe a small/large black hole phase transition and reentrant phase transition,respectively,whereas a large positive value of the QED parameter ruins the phase transition.Phase diagrams for each case are explicitly shown.Then,we construct the Ruppeiner geometry in thermodynamic parameter space.Different features of the corresponding scalar curvature are shown for both the small/large black hole phase transition and reentrant phase transition cases.Of particular interest is the additional region of positive scalar curvature,indicating a dominant repulsive interaction among black hole microstructures,for the black hole with a small positive QED parameter.Furthermore,universal critical phenomena are observed for the scalar curvature of Ruppeiner geometry.These results indicate that the QED parameter has a crucial influence on the black hole phase transition and microstructure.

关 键 词：black holes thermodynamics phase transition Ruppeiner geometry 

分 类 号：P159[天文地球—天文学]