Entropy of Higher-Dimensional Charged de Sitter Black Holes and Phase Transition  

作　　者：Ren Zhao Li-Chun Zhang 赵仁;张丽春

机构地区：[1]Institute of Theoretical Physics, Shanxi Datong University [2]Department of Physics, Shanxi Datong University

出　　处：《Communications in Theoretical Physics》2018年第11期578-584,共7页理论物理通讯（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China under Grant No.11475108

摘　　要：From a new perspective, we discuss the thermodynamic entropy of (n+2)-dimensional Reissner-Nordstrmde Sitter (RNdS) black hole and analyze the phase transition of the effective thermodynamic system. Considering the correlations between the black hole event horizon and the cosmological horizon, we conjecture that the total entropy of the RNdS black hole should contain an extra term besides the sum of the entropies of the two horizons. In the lukewarm case, the effective temperature of the RNdS black hole is the same as that of the black hole horizon and the cosmological horizon. Under this condition, we obtain the extra contribution to the total entropy. With the corrected entropy, we derive other effective thermodynamic quantities and analyze the phase transition of the RNdS black hole in analogy to the usual thermodynamic system.

关 键 词：de SITTER space black hole ENTROPY phase transition 

分 类 号：O4[理学—物理]