Heavy quark in an expanding plasma in AdS/CFT

Abstract

Using the Janik-Peschanski dual to a Bjorken flow, a Langevin equation is derived for a heavy quark in an expanding N = 4 supersymmetric Yang-Mills plasma. Such a plasma is characterized by a proper-time dependence of the temperature and corresponds to a system out of equilibrium. The analysis first focuses on a quark at rest in the plasma comoving frame. The case of a quark moving across a longitudinally expanding plasma is then considered. The two-point functions for the random noise acting on such heavy quark probes are computed.

17 pages. v2: references added; improved comments on the Schwinger-Keldysh formalism

References in corpus (5)

• Schwinger-Keldysh Propagators from AdS/CFT Correspondence
• Horizon formation and far-from-equilibrium isotropization in supersymmetric Yang-Mills plasma
• Momentum fluctuations of heavy quarks in the gauge-string duality
• Comparing energy loss and $p_{\perp }$-broadening in perturbative QCD with strong coupling $\mathcal{N}=4$ SYM theory
• Diffusion in an Expanding Plasma using AdS/CFT

Cited by in corpus (1)

• Drag and jet quenching of heavy quarks in a strongly coupled N=2* plasma