对Kerr-Newman-de Sitter黑洞视界处费米子隧穿辐射的修正  

Modified fermions tunneling radiation from Kerr-Newman-de Sitter black hole

作　　者：杨树政 林恺 YANG ShuZheng;LIN Kai(Hubei Department of Astronomy,China West Normal University,Nanchong 637002,China;Subsurface Multi-scale Imaging Key Laboratory,Institute of Geophysics and Geomatics,China University Wuhan 430074,China)

机构地区：[1]西华师范大学物理与空间科学学院,南充637002 [2]中国地质大学(武汉)地球物理与空间信息学院地球内部多尺度成像湖北省重点实验室,武汉430074 [3]Escola de Engenharia de Lorena, Universidade de Sao Paulo

出　　处：《中国科学：物理学、力学、天文学》2019年第1期100-106,共7页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金(编号:11573022;11805166)资助项目

摘　　要：通过应用变形的色散关系修正了de Sitter时空中的带电旋转黑洞的费米子隧穿辐射谱.首先对弯曲时空中的Rarita-Schwinger方程进行了修正,然后用半经典理论推导出修正的Hamilton-Jacobi方程.运用这项修正,对Kerr-Newman-de Sitter黑洞视界处的费米子隧穿辐射特征进行了研究,其结果表明:在旋转黑洞时空背景之下,黑洞霍金温度和黑洞熵的修正都与黑洞视界处的角向参数相关.By using the deformed dispersion relation, we study the modified fermions tunneling for rotating charged black hole in de Sitter spacetime. Firstly, the Rarita-Schwinger equation is modified in the gravitational background, and then the deformed Hamilton-Jacobi equation is derived by a semi-classical approximation method. It is shown that the form of the correctional Hamilton-Jacobi equation does not depend on the spin of the fermions field in the semi-classical approximation, and its correctional term is given by 2 mgtt(ω-eAt)2. Using the correction, we also investigate the fermion tunneling radiation for Kerr-Newman-de Sitter black hole spacetime, and the results show that the correctional temperature and entropy depend on the angular parameters of the horizon of the rotating black hole background.

关 键 词：修正费米子方程 霍金辐射 费米子隧穿 修正熵 

分 类 号：P145.8[天文地球—天体物理]