Universality of a Critical Magnetic Field in a Holographic Superconductor

作     者：D.Momeni R.Myrzakulov 

作者机构：Eurasian International Center for Theoretical Physics and Department of General and Theoretical PhysicsEurasian National University 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2015年第32卷第4期

页      面：113-117页

核心收录：

学科分类：080705[工学-制冷及低温工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

主　　题：Entropy 

摘      要：We study aspects of holographic superconductors analytically in the presence of a constant external magnetic field. It is shown that the critical temperature and the critical magnetic field can be calculated at nonzero temperature. We detect the Meissner effect in such superconductors. A universal relation between black hole mass and critical magnetic field Hc is proposed to be Hc/M2/3≤0.687365. We also discuss some aspects of phase transition in terms of black hole entropy and Bekenstein＇s entropy to the energy upper bound.