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有限耦合下N = 4超杨-米尔斯理论中的全息热化

Holographic thermalization in [Formula: see text] super Yang-Mills theory at finite coupling.

作者信息

Stricker Stefan A

机构信息

Institut für Theoretische Physik, Technische Universität Wien, Wiedner Hauptstr. 8-10, 1040  Vienna, Austria.

出版信息

Eur Phys J C Part Fields. 2014;74(2):2727. doi: 10.1140/epjc/s10052-014-2727-4. Epub 2014 Feb 12.

Abstract

We investigate the behavior of energy-momentum tensor correlators in holographic [Formula: see text] super Yang-Mills plasma, taking finite coupling corrections into account. In the thermal limit we determine the flow of quasinormal modes as a function of the 't Hooft coupling. Then we use a specific model of holographic thermalization to study the deviation of the spectral densities from their thermal limit in an out-of-equilibrium situation. The main focus lies on the thermalization pattern with which the plasma constituents approach their thermal distribution as the coupling constant decreases from the infinite coupling limit. All obtained results point towards the weakening of the usual top-down thermalization pattern.

摘要

我们研究了全息(\mathcal{N}=4)超杨-米尔斯等离子体中能量-动量张量关联函数的行为,并考虑了有限耦合修正。在热极限下,我们确定了准正则模的流作为 't Hooft 耦合的函数。然后,我们使用全息热化的特定模型来研究在非平衡情况下谱密度与其热极限的偏差。主要关注点在于随着耦合常数从无限耦合极限减小,等离子体成分趋近其热分布的热化模式。所有得到的结果都指向通常的自上而下热化模式的减弱。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dbcd/4371077/2036b0df9a3e/10052_2014_2727_Fig1_HTML.jpg

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