Non-abelian plasma instabilities for strong anisotropy

Details Non-abelian plasma instabilities for strong anisotropy Non-abelian plasma instabilities for strong anisotropy

2007-05-01

arxiv.org/abs/0705.0180v1

JHEP0707:022,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 17 figures

Scientific paper

10.1088/1126-6708/2007/07/022

We numerically investigate gauge field instabilities in anisotropic SU(2) plasmas using weak field initial conditions. The growth of unstable modes is stopped by non-abelian effects for moderate anisotropy. If we increase the anisotropy the growth continues beyond the non-abelian saturation bound. We find strong indications that the continued growth is not due to over-saturation of infrared field modes, but instead due to very rapid growth of high momentum modes which are not unstable in the weak field limit. The saturation amplitude strongly depends on the initial conditions. For strong initial fields we do not observe the sustained growth.

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