Hidden conformal symmetry and pair production near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter spacetime  

作　　者：Haryanto M.Siahaan 

机构地区：[1]Center for Theoretical Physics,Department of Physics,Parahyangan Catholic University,Jalan Ciumbuleuit 94,Bandung 40141,Indonesia

出　　处：《Chinese Physics C》2023年第3期239-251,共13页中国物理C（英文版）

基　　金：Supported by LPPM UNPAR under contract no.III/LPPM/2022-02/79-P。

摘　　要：We show that the study of the hidden conformal symmetry that is associated with the Kerr/CFT correspondence can also apply to the cosmological horizon in the Kerr-Newman-Taub-NUT-de Sitter spacetime.This symmetry allows employing some two dimensional conformal field theory methods to understand the properties of the cosmological horizon.The entropy can be understood by using the Cardy formula,and the equation for the scattering process in the near region is in agreement with that obtained from a two point function in the two-dimensional conformal field theory.We also show that pair production can occur near the cosmological horizon in Kerr-Newman-Taub-NUT-de Sitter for near extremal conditions.

关 键 词：conformal symmetry Ker/CFT de Stter pair production ENTROPY 

分 类 号：P159[天文地球—天文学]