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arXiv · 0709.1089

Universality of the diffusion wake in the gauge-string duality

Steven S. Gubser·Amos Yarom
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Abstract

As a particle moves through a fluid, it may generate a laminar wake behind it. In the gauge-string duality, we show that such a diffusion wake is created by a heavy quark moving through a thermal plasma and that it has a universal strength when compared to the total drag force exerted on the quark by the plasma. The universality extends over all asymptotically anti-de Sitter supergravity constructions with arbitrary scalar matter. We discuss how these results relate to the linearized hydrodynamic approximation and how they bear on our understanding of di-hadron correlators in heavy ion collisions.

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Steven S. Gubser, Amos Yarom. 2007-09-07. Universality of the diffusion wake in the gauge-string duality. https://doi.org/10.1103/physrevd.77.066007

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