Authors: Yukinao Akamatsu Alexander Rothkopf Naoki Yamamoto
Publish Date: 2016/03/31
Volume: 2016, Issue: 3, Pages: 210-
Abstract
We report on an exploratory lattice study on the phenomenon of chiral instabilities in nonAbelian gauge theories at high temperature It is based on a recently constructed anomalous Langevintype effective theory of classical soft gauge fields in the presence of a chiral number density n 5 = n R − n L Evaluated in thermal equilibrium using classical lattice techniques it reveals that the fluctuating soft fields indeed exhibit a rapid energy increase at early times and we observe a clear dependence of the diffusion rate of topological charge sphaleron rate on the the initial n 5 relevant in both early universe baryogenesis and relativistic heavyion collisions The topological charge furthermore shows a drift among distinct vacuum sectors roughly proportional to the initial n 5 and in turn the chiral imbalance is monotonously reduced as required by helicity conservationThis article is published under an open access license Please check the Copyright Information section for details of this license and what reuse is permitted If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and reuse information please contact the Rights and Permissions team
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