Vaidya黑洞量子热效应再讨论  

Rediscussion on Vaidya black holes' quantum thermal effects

作　　者：张靖仪[1] 

机构地区：[1]广州大学天体物理中心,广东广州510006

出　　处：《广州大学学报（自然科学版）》2008年第6期1-4,共4页Journal of Guangzhou University:Natural Science Edition

基　　金：广东省自然科学基金资助项目(7301224)

摘　　要：指出了用内向Eddington坐标研究蒸发型Vaidya黑洞热效应可能出现的困难.通过引入一个坐标变换,新的坐标系下对应的困难消失.在新的坐标系下分别用Damour-Ruffini方法和辐射反作用法重新计算了Vaidya黑洞的温度,并讨论了熵,所得结果是合理的.Drawbacks of the ingoing Eddington coordinates in describing the quantum thermal effects of the evaporating Vaidya black hole are presented. By introducing a new coordinate transformation proposed previously, the difficulties in calculating black hole temperature and black hole entropy vanish. In this new coordinate system, black holes＇ temperature is calculated again in Damour-Ruffini method and back action method, respectively. The entropy of the black hole is also investigated. The results are reasonable.

关 键 词：VAIDYA黑洞 热效应 Eddington坐标系 

分 类 号：O412.1[理学—理论物理]