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 (16)

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Cited by in corpus (16)

• A holographic view on physics out of equilibrium
• Quantum Fluctuations and the Unruh Effect in Strongly-Coupled Conformal Field Theories
• Holographic Lessons for Quark Dynamics
• The dynamics of quark-gluon plasma and AdS/CFT
• Holographic Brownian Motion and Time Scales in Strongly Coupled Plasmas
• Non-equilibrium physics at a holographic chiral phase transition
• Heavy quark energy loss far from equilibrium in a strongly coupled collision
• Effects of Fluid Velocity Gradients on Heavy Quark Energy Loss
• Early-Time Energy Loss in a Strongly-Coupled SYM Plasma
• Drag and jet quenching of heavy quarks in a strongly coupled N=2* plasma
• The Energy Loss of a Heavy Quark Moving in a Viscous Fluid
• Holographic Jets in an Expanding Plasma
• Fermionic Schwinger-Keldysh Propagators from AdS/CFT
• Quantum fluctuations and thermal dissipation in higher derivative gravity
• Holographic drag force in non-conformal plasma
• A random walk with heavy flavours