Probe branes, time-dependent couplings and thermalization in AdS/CFT
Probe branes, time-dependent couplings and thermalization in AdS/CFT
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DOI：
10.1007/jhep07(2010)071
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发表时间：
2010-05
影响因子：
5.4
通讯作者：
Sumit R. Das;T. Nishioka;T. Takayanagi
中科院分区：
文献类型：
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作者：
Sumit R. Das;T. Nishioka;T. Takayanagi
在AdS× S时空中，我们利用探测D-膜给出了共形场论中热化的全息描述.我们发现，诱导度规的DP膜世界体积是在一个内部的球方向旋转的视野与特征霍金温度，即使没有黑洞的散装AdS。AdS/CFT对应适用于这样的系统确实揭示了热性质，如布朗运动和AC电导率在对偶共形场论。我们也使用这个框架来全息分析的时间依赖系统进行量子淬火，在量子场论中的参数，如质量或耦合常数，突然改变。我们证实，这导致热行为，通过演示形成的表观视野在诱导度量一定的时间后。
We present holographic descriptions of thermalization in conformal field theories using probe D-branes in AdS× S space-times. We find that the induced metrics on Dp-brane worldvolumes which are rotating in an internal sphere direction have horizons with characteristic Hawking temperatures even if there is no black hole in the bulk AdS. The AdS/CFT correspondence applied to such systems indeed reveals thermal properties such as Brownian motions and AC conductivities in the dual conformal field theories. We also use this framework to holographically analyze time-dependent systems undergoing a quantum quench, where parameters in quantum field theories, such as a mass or a coupling constant, are suddenly changed. We confirm that this leads to thermal behavior by demonstrating the formation of apparent horizons in the induced metric after a certain time.