Speaker
Shoichiro Tsutsui
(Kyoto University)
Description
Plasma instabilities play important roles in thermalization processes of relativistic heavy-ion collisions. We study early-stage instabilities of non-Abelian plasma on the basis of two-particle irreducible(2PI) formalism. In this presentation, We focus on Nielsen-Olesen instability caused by homogeneous but time dependent color magnetic field. For this purpose, We perturbatively solve equations of motion of gluon fields and Scwinger-Dyson (Kadanoff-Baym) equation simultaneously up to 1-loop level.
Our results imply that exponential growth of unstable modes directly leads to explosive particle production. Futhermore, the longitudinal fluctuation of gluon fields is found to generate secondary instabilities of all momentum
modes in an analytic way.
Primary author
Shoichiro Tsutsui
(Kyoto University)
Co-authors
Akira Ohnishi
(Kyoto University)
Hideaki Iida
(Kyoto University)
Teiji Kunihiro
(Kyoto University)
