文献类型：期刊文献

中文题名：新乌龟坐标变换下的动态Kinnersley黑洞的Hawking辐射

英文题名：Hawking radiation of dynamical Kinnersley black hole under the new tortoise coordinate transformation

作者：潘伟珍[1];杨学军[1];骆金彩[1]

机构：[1]绍兴文理学院物理与电子信息系

年份：2011

卷号：60

期号：10

起止页码：831

中文期刊名：物理学报

外文期刊名：Acta Physica Sinica

收录：SCI-EXPANDED(收录号：WOS:000300718700124)、CSTPCD、、Scopus、CSCD2011_2012、北大核心2008、WOS、北大核心、CSCD

基金：Project supported by the National Natural Science Foundation of China ( Grant Nos. 10873003, 11045005 ), and the Natural Science Foundation of Zhejiang Province, China ( Grant No. Y6090739 ).

语种：中文

中文关键词：黑洞;乌龟坐标变换;Hawking辐射;Klein-Gorden方程

外文关键词：black hole; tortoise coordinate transformation; Hawking radiation; Klein-Gordon equation

中文摘要：采用两种新的乌龟坐标变换,用改进的Damour-Ruffini方法研究了动态Kinnersley黑洞的Hawking辐射.在新乌龟坐标变换下,将Klein-Gordon方程在视界附近变换成平直时空的标准波动方程形式,得到了黑洞的表面引力及Hawking温度,该温度在黑洞表面不同点有不同的值.值得注意的是,旧的乌龟坐标变换存在量纲错误,新乌龟坐标变换没有量纲问题,选不同的旧乌龟坐标变换计算同一黑洞所得结果不同,但是采用不同的新乌龟坐标变换所得结果仍然不同.

外文摘要：With two new tortoise coordinate transformations,Hawking effect from a dynamical Kinnersley black hole is investigated by using the improved Damour-Ruffini method.After the tortoise coordinate transformation,the Klein-Gordon equation can be written in the standard form at the event horizon.Then extending the outgoing wave from outside to inside of the horizon analytically,the surface gravity and the Hawking temperature can be obtained automatically.It is found that Hawking temperature of different points on the surface are different.There is a problem of dimension in the usual tortoise coordinate and the results are different from those of the same black hole by using two different tortoise coordinate transformations.The results obtained by using two new tortoise coordinate transformations are still different.