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arXiv 0809.4272hep-thgr-qcphysics.flu-dyn
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任意维重力共形非线性流体动力学

Conformal Nonlinear Fluid Dynamics from Gravity in Arbitrary Dimensions

Sayantani Bhattacharyya, R. Loganayagam, Ipsita Mandal, Shiraz Minwalla, Ankit Sharma

摘要:

我们推广了最近的工作,构建一个地图从共形纳维-斯托克斯方程与全息确定的传输系数,在d时空维度,一套渐近局部AdS_{d+1}长波解的爱因斯坦方程与负宇宙学常数,所有d>2。我们找到了应力张量的简单显式表达式(稍微推广了Haack和Yarom(arXiv:0806.4602)的最新结果),这种强耦合共形流体的完全对偶体度量和熵流,在导数展开中达到二阶,任意d>2。我们还重写了众所周知的精确解旋转黑洞在AdS_{d+1}空间中的一个明显的流体动力学形式,推广早期的工作在d=4。到二阶导数展开,这个度量与我们对流体流的度量对偶的一般构造一致。

英文摘要:

We generalize recent work to construct a map from the conformal Navier Stokes equations with holographically determined transport coefficients, in d spacetime dimensions, to the set of asymptotically locally AdS_{d+1} long wavelength solutions of Einstein's equations with a negative cosmological constant, for all d>2. We find simple explicit expressions for the stress tensor (slightly generalizing the recent result by Haack and Yarom (arXiv:0806.4602)), the full dual bulk metric and an entropy current of this strongly coupled conformal fluid, to second order in the derivative expansion, for arbitrary d>2. We also rewrite the well known exact solutions for rotating black holes in AdS_{d+1} space in a manifestly fluid dynamical form, generalizing earlier work in d=4. To second order in the derivative expansion, this metric agrees with our general construction of the metric dual to fluid flows.

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