Thermodynamics and weak cosmic censorship conjecture of BTZ black holes in extended phase space  

作　　者：Xiao-Xiong Zeng Yi-Wen Han De-You Che 曾晓雄;韩亦文;陈德友(Department of Mechanics,Chongqing Jiaotong University,Chongqing 400074,China;State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China;School of Computer Science and Information Engineering,Chongqing Technology and Business University,Chongqing 400070,China;School of Science,Xihua University,Chengdu 610039,Sichuan,China)

机构地区：[1]Department of Mechanics,Chongqing Jiaotong University,Chongqing 400074,China [2]State Key Laboratory of Mountain Bridge and Tunnel Engineering,Chongqing Jiaotong University,Chongqing 400074,China [3]School of Computer Science and Information Engineering,Chongqing Technology and Business University,Chongqing 400070,China [4]School of Science,Xihua University,Chengdu 610039,Sichuan,China

出　　处：《Chinese Physics C》2019年第10期112-117,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11875095);Basic Research Project of Science and Technology Committee of Chongqing(cstc2018jcyjA2480,cstc2019jcyjA2091)

摘　　要：As a charged fermion drops into a BTZ black hole, the laws of thermodynamics and the weak cosmic censorship conjecture are investigated in both the normal and extended phase space, where the cosmological parameter and renormalization length are regarded as extensive quantities. In the normal phase space, the first and second law of thermodynamics, and the weak cosmic censorship are found to be valid. In the extended phase space, although the first law and weak cosmic censorship conjecture remain valid, the second law is dependent on the variation of the renormalization energy dK. Moreover, in the extended phase space, the configurations of extremal and near-extremal black holes are not changed, as they are stable, while in the normal phase space, the extremal and near-extremal black holes evolve into non-extremal black holes.As a charged fermion drops into a BTZ black hole, the laws of thermodynamics and the weak cosmic censorship conjecture are investigated in both the normal and extended phase space, where the cosmological parameter and renormalization length are regarded as extensive quantities. In the normal phase space, the first and second law of thermodynamics, and the weak cosmic censorship are found to be valid. In the extended phase space, although the first law and weak cosmic censorship conjecture remain valid, the second law is dependent on the variation of the renormalization energy d K. Moreover, in the extended phase space, the configurations of extremal and near-extremal black holes are not changed, as they are stable, while in the normal phase space, the extremal and near-extremal black holes evolve into non-extremal black holes.

关 键 词：WEAK COSMIC CENSORSHIP CONJECTURE THERMODYNAMICS BTZ black holes 

分 类 号：O4[理学—物理]