Hard-loop dynamics of non-Abelian plasma instabilities.
Non-Abelian plasma instabilities may be responsible for the fast apparent quark-gluon thermalization in relativistic heavy-ion collisions if their exponential growth is not hindered by nonlinearities. We study numerically the real-time evolution of instabilities in an anisotropic non-Abelian plasma with an SU(2) gauge group in the hard-loop approximation. We find exponential growth of non-Abelian plasma instabilities both in the linear and in the strongly nonlinear regimes, with only a brief phase of subexponential behavior in between.
Rebhan
Anton
A
Institut für Theoretische Physik, Technische Universität Wien, A-1040 Vienna, Austria.
Romatschke
Paul
P
Strickland
Michael
M