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Cañate-Bergliaffa黑洞时空的整体结构研究

The Overall Structure of Cañate-Bergliaffa Black Hole Space-Time
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摘要 黑洞时空的最大延拓是我们了解黑洞时空结构的重要途经,而黑洞的时空结构对于黑洞的整体物理性质以及对奇点本身的研究具有重要意义.用解析方法给出了光子径向运动的精确解,以用其描述Cañate-Bergliaffa黑洞时空的光锥结构.考虑到原始坐标系不足以描述视界内部的光子运动行为,故采用克鲁斯卡坐标系对此时空进行了解析延拓,得到光子在黑洞视界内部正确的运动行为.并在此基础上分析了Cañate-Bergliaffa黑洞时空的整体结构.结果表明,其黑洞时空与RN黑洞的整体时空结构同构. The largest extension of black hole space-time is an important way for us to understand the space-time structure of black holes,and the space-time structure of black holes is of great significance for the overall physical properties of black holes and the study of singularities themselves.In this paper,the exact solution of the radial motion of photons is given by analytical method to describe the light cone structure of the space-time of Cañate-Bergliaffa black hole.Considering that the original coordinate system is not enough to describe the photon motion behavior inside the horizon,the Kruskal coordinates are used to analytically extend this space-time,and the correct motion behavior of photons inside the black hole horizon is obtained.On this basis,the o⁃verall structure of the Cañate-Bergliaffa black hole space-time is analyzed,and the results show that the over⁃all space-time structure of the black hole is isomorphic to that of the RN black hole.
作者 马宸 张钰 MA Chen;ZHANG Yu(Faculty of Science,Kunming University of Science and Technology,Kunming 650500,China)
出处 《昆明理工大学学报(自然科学版)》 北大核心 2022年第1期164-168,共5页 Journal of Kunming University of Science and Technology(Natural Science)
基金 国家自然科学基金项目(12065012) 云南省中青年学术与技术带头人后备人才项目(2018HB006) 云南省“高层次人才培养支持计划”青年拔尖人才专项(YNWR-QNBJ-2018-360)。
关键词 整体时空结构 克鲁斯卡坐标系 光子运动解析解 overall space-time structure Kruskal coordinates analytical solution of photon motion
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