Vaidya-Bonner-de Sitter(VBD)时空的熵  

ENTROPY OF VAIDYA-BONNER-DE SITTER SPACE-TIME

作　　者：史旺林[1] 刘兴业[1] 赵峥[1] 

机构地区：[1]北京师范大学物理学系,北京100875

出　　处：《北京师范大学学报（自然科学版）》2001年第3期364-368,共5页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目 (197730 0 3)

摘　　要：利用改进后的brick wall模型计算动态时空的熵 .首先介绍性地利用计算动态黑洞温度的方法 ,得到了Vaidya Bonner deSitter(VBD)时空的不同视界的温度 ;随后对VBD时空两个视界的熵进行了计算 ;在忽略小量的情况下 ,得到与Bekenstein相一致的结果 ,即时空的熵与视界的面积成正比 .Using the brick wall model put forward by 't Hooft, the entropy of those stationary black holes which are at the state of thermal equilibrium can be calculated. This paper is to calculate the entropy of non stationary space time using the improved brick wall method. By introducing the method for calculating the temperature of non stationary black hole briefly, the temperatures at VBD space time horizons are gained; then the entropy of VBD space time is calculated. The conclusion is consentaneous with Bekenstein's entropy when minor terms are ignored,that is, the entropy of space time is proportional to its area.

关 键 词：VAIDYA-BONNER-DE SITTER时空 BRICK-WALL模型 温度 黑洞熵 视界面积 外视界 宇宙视界 

分 类 号：P145.8[天文地球—天体物理]