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arXiv 1505.06992hep-thcond-mat.str-el
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来自流体/重力对应的动量松弛

Momentum relaxation from the fluid/gravity correspondence

Mike Blake

摘要:

我们提供了一个流体动力学描述的全息理论与破坏平移不变性。我们使用的流体/重力对应系统地获得的电流和沃德恒等式的动量松弛的导数展开的本构关系。除了领先的顺序在动量弛豫的强度,我们的结果不同于以前提出的模型Hartnoll等人。作为这些技术的应用,我们认为电荷和热输运的边界理论。从线性流体力学出发,导出了全息理论的低频热电输运系数。

英文摘要:

We provide a hydrodynamical description of a holographic theory with broken translation invariance. We use the fluid/gravity correspondence to systematically obtain both the constitutive relations for the currents and the Ward identity for momentum relaxation in a derivative expansion. Beyond leading order in the strength of momentum relaxation, our results differ from a model previously proposed by Hartnoll et al. As an application of these techniques we consider charge and heat transport in the boundary theory. We derive the low frequency thermoelectric transport coefficients of the holographic theory from the linearised hydrodynamics.

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