High-temperature behavior of the Chern-Simons diffusion rate in the 1+1 dimensional abelian Higgs model

Authors
Publication date 1999
Journal Nuclear Physics B
Volume | Issue number 540
Pages (from-to) 437-456
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for Theoretical Physics Amsterdam (ITFA)
Abstract We give arguments that in the 1+1 dimensional abelian Higgs model the classical
approximation can be good for the leading high temperature behavior of
real time processes. The Chern-Simons diffusion rate (`sphaleron rate') is
studied numerically in this approximation. New results at high temperature
show a $T^{2/3}$ behavior of the rate at sufficiently small lattice spacing.
Document type Article
Published at https://doi.org/10.1016/S0550-3213(98)00657-9
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