Generated genuine tripartite steering and its monogamy in the background of a Kerr-Newman black hole  

作　　者：Xiaoli Huang Haoyu Wu Shumin Wu (黄晓理);(吴浩瑜);(吴树民)(Department of Physics,Liaoning Normal University,Dalian 116029,China)

机构地区：[1]Department of Physics,Liaoning Normal University,Dalian 116029,China

出　　处：《Chinese Physics C》2024年第11期170-180,共11页中国物理C（英文版）

基　　金：Supported by the National Natural Science Foundation of China (12205133,LJKQZ20222315,JYTMS20231051);the Special Fund for Basic Scientific Research of Provincial Universities in Liaoning (LS2024Q002)。

摘　　要：We study the redistribution of quantum steering and its monogamy in the presence of a four-dimensional Kerr-Newman black hole.The gravitational effect of the Kerr-Newman black hole is shown to generate genuine tripartite steering between causally disconnected regions,depending on the polar angle,angular momentum,electric charge,and magnetic charge of the black hole.We obtain strong evidence of steering monogamy,that is,the"sudden death"of the A→B steering results in the"sudden birth"of B→B steering.We also obtain the condition of maximal steering asymmetry,that is,η0=√1+tanh^(2)(s),revealing the transition between two-way and one-way steering in Kerr-Newman spacetime.

关 键 词：genuine tripartite steering Kerr-Newman black hole steering monogamy 

分 类 号：P145.8[天文地球—天体物理]