Thermodynamic instability of 3D Einstein-Born-Infeld AdS black holes  

作　　者：Hongmei Jing Benrong Mu Jun Tao Peng Wang 景红梅;木本荣;陶军;王鹏(Center for Theoretical Physics,College of Physics,Sichuan University,Chengdu 610065,China;Physics Teaching and Research Section,College of Medical Technology,Chengdu University of Traditional Chinese Medicine,Chengdu 611137,China)

机构地区：[1]Center for Theoretical Physics,College of Physics,Sichuan University,Chengdu 610065,China [2]Physics Teaching and Research Section,College of Medical Technology,Chengdu University of Traditional Chinese Medicine,Chengdu 611137,China

出　　处：《Chinese Physics C》2021年第6期202-208,共7页中国物理C（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China(11005016,11875196,11375121)。

摘　　要：Super-entropic black holes possess finite-area but noncompact event horizons and violate the reverse iso-perimetric inequality.It has been conjectured that such black holes always have negative specific heat at constant volume C_(V)or negative specific heat at constant pressure C_(p)whenever Cy>0,making them unstable in extended thermodynamics.In this paper,we describe a test of this instability conjecture with a family of nonlinear electro-dynamic black holes,namely 3D Einstein-Bom-Infeld(EBI)AdS black holes.Our results show that when nonlinear electrodynamics effects are weak,the instability conjecture is valid.However,the conjecture can be violated in some parameter region when nonlinear electrodynamics effects are strong enough.This observation thus provides a counter example to the instability conjecture,which suggests that super-entropic black holes may be thermodynamically stable.

关 键 词：Einstein-Bom-Infeld black holes super-entropic black holes black hole thermodynamics thermodynamic instability 

分 类 号：P145.8[天文地球—天体物理]