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| 从乌龟坐标在动态Vaidya黑洞上的推广谈起 | |
| 引用本文： | 鹿鹏举,赵峥,刘文彪. 从乌龟坐标在动态Vaidya黑洞上的推广谈起[J]. 物理学报, 2012, 61(5): 50401-050401 |
| 作者姓名： | 鹿鹏举 赵峥 刘文彪 |
| 作者单位： | 北京师范大学物理学系,北京,100875 |
| 基金项目： | 国家自然科学基金(批准号: 10773002,10875012)和中央高校基本科研业务费专项资金(批准号: 105116)资助的课题. |
| 摘 要： | 从一类参数未定的一般形式的乌龟坐标变换出发, 找出了在动态Vaidya黑洞背景下能将波动方程化为标准形式且无发散的乌龟坐标所满足的条件. 结果表明, 以乌龟坐标变换为主要特征的Damour-Ruffini方法, 用来计算动态黑洞的Hawking辐射时, 只适用于事件视界, 无法应用于表观视界. |
| 关 键 词： | 动态黑洞 乌龟坐标 Hawking辐射 表观视界 |
| 收稿时间： | 2011-05-07 |
Discussion on applying tortoise coordinates to a dynamical Vaidya black hole |
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| Lu Peng-Ju,Zhao Zheng and Liu Wen-Biao. Discussion on applying tortoise coordinates to a dynamical Vaidya black hole[J]. Acta Physica Sinica, 2012, 61(5): 50401-050401 | |
| Authors: | Lu Peng-Ju Zhao Zheng Liu Wen-Biao |
| Affiliation: | Department of Physics, Beijing Normal University, Beijing 100875, China;Department of Physics, Beijing Normal University, Beijing 100875, China;Department of Physics, Beijing Normal University, Beijing 100875, China |
| Abstract: | Applying generalized tortoise coordinates with undetermined parameters to a dynamical Vaidya black hole, we find the interesting condition for reducing the wave function into its standard form without divergence. It is shown that the Damour-Ruffini method with tortoise coordinate can be applied only to the event horizon rather than the apparent horizon in a dynamical space time. |
| Keywords: | dynamical black hole tortoise coordinates Hawking radiation apparent horizon |
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