量子扰动下引力的临界现象(英文)  

Critical behaviors of gravity under quantum perturbations

作　　者：张宏升[1] 李新洲[1] 

机构地区：[1]上海师范大学天体物理研究中心,上海200234

出　　处：《上海师范大学学报（自然科学版）》2014年第1期44-50,共7页Journal of Shanghai Normal University(Natural Sciences)

基　　金：supported by the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning;National Education Foundation of China under grant(200931271104);Shanghai Municipal Pujiang grant(10PJ1408100);National Natural Science Foundation of China under Grant(11075106)

摘　　要：相变和临界现象是热力学和统计力学中非常有趣的课题.引力与热力学有着深刻和本质的联系.接近临界点,涨落非常明显.因此,对于普通物质(由非引力作用控制的系统)在临界点附近如果我们忽略涨落,临界现象会变的非常不同.发现RN-AdS空间的临界指数在考虑到完全的量子微扰效应后保持不变.这个研究指出了引力系统与普通热力学系统的一个关键不同点.Phase transition and critical phenomenon is a very interesting topic in thermodynamics and statistical mechanics.Gravity is believed to have deep and inherent relation to thermodynamics. Near the critical point,the perturbation becomes significant.Thus for ordinary matter （governed by interactions besides gravity）the critical behavior will become very different if we ignore the pertur-bations around the critical point,such as mean field theory.We find that the critical exponents for RN-AdS spacetime keep the same values even when we consider the full quantum perturbations. This indicates a key difference between gravity and ordinary thermodynamic system.

关 键 词：临界指数 量子扰动 黑洞热力学 

分 类 号：O414[理学—理论物理]