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arXiv 1012.1040hep-th
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T = 0时重力引起的小振幅强迫流体动力学

Small Amplitude Forced Fluid Dynamics from Gravity at T = 0

Jae-Hyuk Oh

摘要:

通常的荷电流体动力学的重力导数展开式在零温度极限下失效。在这种情况下,流体-重力二元性并没有得到精确的理解。本文研究了零温带电流体在低频、小振幅、空间均匀外力作用下的动力学问题。在引力对偶中,这对应于时间依赖的边界值。我们用[11]中的修正低频展开法计算了玻色子的体解以及对度规场和规范场的主导反作用。由此得到的解在任何地方都是正则的,从而建立了这个量级的流体-重力对偶。

英文摘要:

The usual derivative expansion of gravity duals of charged fluid dynamics is known to break down in the zero temperature limit. In this case, the fluid-gravity duality is not understood precisely. We explore this problem for a zero temperature charged fluid driven by a low frequency, small amplitude and spatially homogeneous external force. In the gravity dual, this corresponds to time dependent boundary value of the dilaton. We calculate the bulk solution for the dilaton and the leading backreaction to the metric and the gauge fields using the modified low frequency expansion of [11]. The resulting solutions are regular everywhere, establishing fluid-gravity duality to this order.

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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