Friday, January 13, 2006, 2:00 pm — Small Seminar Room, Bldg. 510
I will discuss recent advances in the understanding of non-equilibrium gauge field dynamics in plasmas which have particle distributions which are locally anisotropic in momentum space. In contrast to locally isotropic plasmas such anisotropic plasmas have a spectrum of soft unstable modes which are characterized by exponential growth of
transverse (chromo)-magnetic fields at short times. The long-time behavior of such instabilities depends on whether or not the gauge group is abelian or non-abelian. Here I will report on recent numerical simulations which attempt to determine the long-time behavior of an anisotropic non-abelian plasma within hard-loop effective theory. In
addition, I will discuss the effect of adding collisions using a modified relaxation time approximation model for the collisional kernel in order to assess the impact of collisional damping on unstable collective modes.
Hosted by: Anna Stasto
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