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arXiv 0806.2141hep-th
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强耦合下各向异性等离子体的描述

Towards the description of anisotropic plasma at strong coupling

Romuald A. Janik, Przemyslaw Witaszczyk

摘要:

我们利用AdS/CFT对应研究了强耦合下的各向异性等离子体。我们构造一个精确的对偶几何,它代表了一个静态的均匀,但各向异性系统,并发现,虽然它是奇异的,它允许一个概念的“传入”边界条件。我们研究这个背景周围的小波动,发现色散关系的关键取决于相对于形状的各向异性的波矢量的方向,让人想起类似的行为在弱耦合。我们没有发现明确的不稳定性所考虑的顺序,但只有一个巨大的差异,阻尼行为。

英文摘要:

We initiate a study of anisotropic plasma at strong coupling using the AdS/CFT correspondence. We construct an exact dual geometry which represents a static uniform but anisotropic system and find, that although it is singular, it allows for a notion of `incoming' boundary conditions. We study small fluctuations around this background and find that the dispersion relation depends crucially on the direction of the wave-vector relative to the shape of the anisotropy reminiscent of similar behaviour at weak coupling. We do not find explicit instabilities to the considered order but only a huge difference in the damping behaviour.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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