Non-abelian plasma instabilities for strong anisotropy

Bödeker D, Rummukainen K. Non-abelian plasma instabilities for strong anisotropy. Journal of High Energy Physics. 2007;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 saturation bound. We find strong indications that the continued growth is not due to over-saturation of infared 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