Hawking Radiation from Spherically Symmetrical Gravitational Collapse to an Extremal R-N Black Hole for a Charged Scalar Field  

作　　者：ZHANGHong-Bao CAOZhou-Jian GAOChong-Shou 

机构地区：[1]SchoolofPhysics,PekingUniversity,Beijing100871,China [2]DepartmentofPhysics,BeijingNormalUniversity,Beijing100875,China [3]InstituteofTheoreticalPhysics,AcademiaSinica,Beijing100080,China

出　　处：《Communications in Theoretical Physics》2004年第3期385-390,共6页理论物理通讯（英文版）

基　　金：The project supported in part by National Natural Science Foundation of China under Grant No.90103019;;the Doctoral Programme Foundation of Institute of Higher Education;;the Ministry of Education of China under Grant No.2000000147

摘　　要：Si-Jie Gao has recently investigated Hawking radiation from spherically symmetrical gravitational collapse to an extremal R-N black hole for a real scalar field. Especially he estimated the upper bound for the expected number of particles in any wave packet belonging to spontaneously produced from the state , which confirms the traditional belief that extremal black holes do not radiate particles. Making some modifications, we demonstrate that the analysis can go through for a charged scalar field.

关 键 词：Hawking radiation extremal R-N black holes charge scalar field 

分 类 号：P145.8[天文地球—天体物理]