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Title: Plasma Instabilities in an Anisotropically Expanding Geometry

Abstract

We study (3+1)D kinetic (Boltzmann-Vlasov) equations for relativistic plasma particles in a one dimensionally expanding geometry motivated by ultrarelativistic heavy-ion collisions. We set up local equations in terms of Yang-Mills potentials and auxiliary fields that allow simulations of hard- (expanding-) loop dynamics on a lattice. We determine numerically the evolution of plasma instabilities in the linear (Abelian) regime and also derive their late-time behavior analytically, which is consistent with recent numerical results on the evolution of the so-called melting color-glass condensate. We also find a significant delay in the onset of growth of plasma instabilities which are triggered by small rapidity fluctuations, even when the initial state is highly anisotropic.

Authors:
 [1];  [2]
  1. Fakultaet fuer Physik, Universitaet Bielefeld, D-33501 Bielefeld (Germany)
  2. Institut fuer Theoretische Physik, Technische Universitaet Wien, Wiedner Hauptstrasse 8-10, A-1040 Vienna (Austria)
Publication Date:
OSTI Identifier:
20861517
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 97; Journal Issue: 25; Other Information: DOI: 10.1103/PhysRevLett.97.252301; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANISOTROPY; BOLTZMANN-VLASOV EQUATION; EVOLUTION; FOUR-DIMENSIONAL CALCULATIONS; GEOMETRY; GLASS; HEAVY ION REACTIONS; MELTING; ONE-DIMENSIONAL CALCULATIONS; PARTICLE RAPIDITY; PLASMA INSTABILITY; PLASMA SIMULATION; POTENTIALS; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; YANG-MILLS THEORY

Citation Formats

Romatschke, Paul, and Rebhan, Anton. Plasma Instabilities in an Anisotropically Expanding Geometry. United States: N. p., 2006. Web. doi:10.1103/PHYSREVLETT.97.252301.
Romatschke, Paul, & Rebhan, Anton. Plasma Instabilities in an Anisotropically Expanding Geometry. United States. doi:10.1103/PHYSREVLETT.97.252301.
Romatschke, Paul, and Rebhan, Anton. Fri . "Plasma Instabilities in an Anisotropically Expanding Geometry". United States. doi:10.1103/PHYSREVLETT.97.252301.
@article{osti_20861517,
title = {Plasma Instabilities in an Anisotropically Expanding Geometry},
author = {Romatschke, Paul and Rebhan, Anton},
abstractNote = {We study (3+1)D kinetic (Boltzmann-Vlasov) equations for relativistic plasma particles in a one dimensionally expanding geometry motivated by ultrarelativistic heavy-ion collisions. We set up local equations in terms of Yang-Mills potentials and auxiliary fields that allow simulations of hard- (expanding-) loop dynamics on a lattice. We determine numerically the evolution of plasma instabilities in the linear (Abelian) regime and also derive their late-time behavior analytically, which is consistent with recent numerical results on the evolution of the so-called melting color-glass condensate. We also find a significant delay in the onset of growth of plasma instabilities which are triggered by small rapidity fluctuations, even when the initial state is highly anisotropic.},
doi = {10.1103/PHYSREVLETT.97.252301},
journal = {Physical Review Letters},
number = 25,
volume = 97,
place = {United States},
year = {Fri Dec 22 00:00:00 EST 2006},
month = {Fri Dec 22 00:00:00 EST 2006}
}