Total Quantum Statistical Entropy of Reissner-Nordstrom Black Holes: Scalar Field Case  

作　　者：XU Dian-Yan 许殿彦(Institute of Microelectronics and Department of Computer Science and Technology,Peking University,Beijing 100871)

机构地区：[1]Institute of Microelectronics and Department of Computer Science and Technology,Peking University,Beijing 100871

出　　处：《Chinese Physics Letters》2001年第10期1312-1315,共4页中国物理快报（英文版）

摘　　要：The total quantum statistical entropy of Reissner-Nordstrom (RN) black holes is evaluated. The spacetime of the black holes is divided into three regions-region 1, (r > ro);region 2, (ro > r > ri);andregion 3, (ri > r > 0)-where ro is the radius of the outer event horizon, and ri is the radius of the inner event horizon. The total quantum statistical entropy of RN black holes is S = S1 + S2 + Ss, where Si (i = 1, 2, 3) is the entropy, contributed by region Si (i = 1, 2, 3). The detailed calculation shows that S2 ≈ 0. S1 = (π^(2)/45)[kbAo/∈^(2)β^(3)], S3 = -(r2/45)[kbAi/∈^(2)β^(3)], where Ao and Ai are, respectively, the area of the outer and inner event horizons. Thus, as ri approaches ro, in the extreme case the total quantum statistical entropy of RN black holes approaches zero.

关 键 词：ENTROPY REISSNER RADIUS 

分 类 号：O41[理学—理论物理]