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arXiv 1807.05058hep-th
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流体-重力对偶与膜-重力对偶的导阶比较

A leading-order comparison between fluid-gravity and membrane-gravity dualities

Sayantani Bhattacharyya, Parthajit Biswas, Milan Patra

摘要:

本文比较了在负宇宙学常数条件下,两种不同的微扰方法对Einstein方程的动力学黑膜解的产生.一种是“导数展开法”,其中重力解与相对论性纳维-斯托克斯方程的解是一一对应的。第二个是在时空维度的逆幂方面的扩展,这里的重力解是对偶的,以一个共维的动力膜,嵌入在AdS空间中,并耦合到速度场。我们已经表明,在大量的时空维度,这两种微扰技术之间存在一个重叠的制度,我们匹配的两个重力的解决方案,以及他们的对偶系统,直到第一个非平凡的顺序在双方的扩展参数。在这个过程中,我们建立了一个一对一的映射之间的动态黑膜几何和AdS空间,即使在维数是有限的。

英文摘要:

In this note, we have compared two different perturbation techniques that are used to generate dynamical black-brane solutions to Einstein equation in presence of negative cosmological constant. One is the `derivative expansion', where the gravity solutions are in one-to-one correspondence with the solutions of relativistic Navier-Stokes equation. The second is the expansion in terms of inverse power of space-time dimensions and here the gravity solutions are dual to a co-dimension one dynamical membrane, embedded in AdS space and coupled to a velocity field. We have shown that in large number of space-time dimensions, there exists an overlap regime between these two perturbation techniques and we matched the two gravity solutions along with their dual systems upto the first non-trivial order in the expansion parameter on both sides. In the process, we established a one-to-one map between dynamical black-brane geometry and the AdS space, which exists even when the number of dimensions is finite.

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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