极端黑洞熵的新认识  

A new perspective on the extremal black hole entropy

作　　者：米丽琴[1] 

机构地区：[1]浙江工业大学理学院,杭州310023

出　　处：《中国科学：物理学、力学、天文学》2013年第3期225-229,共5页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金资助项目(批准号:11075141;10775119;11173021)

摘　　要：本文研究了极端RNdS黑洞的量子熵,表明当考虑内事件视界时,极端黑洞的熵与极端和量子化的次序无关都为零,满足热力学第三定律.内外事件视界对熵的贡献是对数发散的,且它们的绝对值严格相等,特别是外事件视界对熵的贡献是负值,这是一个全新的结论.The quantum entropy of the extremal RNdS black hole is investigated. It is shown that independent of whether extremalization or quantization are carded out first, the entropy is zero and satisfies the third law of thermadynamics. The contributions to the entropy due to the outer event horizon and inner event horizon are logarithmic divergences, which are exactly equal. In particular, the contribution of the outer event horizon is negative. This is a brand new conclusion.

关 键 词：极端黑洞 量子熵 事件视界 

分 类 号：P145.8[天文地球—天体物理]