整体单极子对全息热化的影响  

Effect of global monopole on holographic thermalization

作　　者：曾晓雄[1] 胡馨匀[1] 韩亦文[2] 刘显明[3] 

机构地区：[1]重庆交通大学理学院,重庆400070 [2]重庆工商大学计算机科学与信息工程学院,重庆400070 [3]湖北民族学院物理系,恩施445000

出　　处：《中国科学：物理学、力学、天文学》2015年第8期64-70,共7页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金(批准号:11365008;11405016);湖北省科技厅(编号:2014CFB608)资助项目

摘　　要：通过最小面积面,我们探测了带有整体单极子背景下球壳的引力坍塌过程,根据Ad S/CFT对偶,这等同于在共形场背景下用Wilson环探测等离子体的热化过程.结果表明,整体单极参数对热化时间的影响是非单调的,在热化早期随整体单极参数增大热化时间变短,在热化晚期随整体单极参数增大热化时间变长.基于热化曲线的拟合函数,我们得到了热化速度和热化加速度并讨论了整体单极参数对热化速度和热化加速度的影响.With the minimal area surface, we probe the gravitational collapse process in the background with a global monopole,which is dual to probe the thermalization process in the dual conformal field by the Wilson loop according to the Ad S/CFT correspondence. The result shows that the effect of global monopole on the thermalization time is non-monotonous. At the early stage, the thermalization time becomes shorter as the global monopole parameters increases, and at the last stage the thermalization time becomes longer as the global monopole parameters increases. Based on the fitted functions of the thermalization curves, we get the thermalization velocity as well as thermalization acceleration, and we also discuss the effect of the global monopole on the thermalization velocity and thermalization acceleration.

关 键 词：全息热化 非平衡 黑洞 整体单极 

分 类 号：O551.3[理学—热学与物质分子运动论]