Brownian motion in strongly coupled, anisotropic Yang-Mills plasma: A holographic approach

Abstract

We employ methods of gauge/string duality to analyze the nonrelativistic Brownian motion and the concomitant Langevin equation of a heavy quark in a strongly coupled, thermal, anisotropic Yang-Mills plasma in the low anisotropy limit. We consider fluctuations both along and perpendicular to the direction of anisotropy and study the effects of anisotropy on the drag coefficient, the diffusion constant, and the Langevin coefficient for both the directions. We also verify the fluctuation-dissipation theorem for Brownian motion in an anisotropic medium.