PoS - Proceedings of Science
Volume 334 - The 36th Annual International Symposium on Lattice Field Theory (LATTICE2018) - Applications beyond QCD
U(1) vacuum, Chern-Simons diffusion and real-time simulations
A. Florio
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Published on: May 29, 2019
Abstract
Despite its importance for subjects ranging from cosmology to plasma physics, first principle simulations of the dynamics associated with a $U(1)$ chiral anomaly have been started only recently. In this work, we report on the current status of these investigations. We discuss a possible set-up and highlight some results. We present a determination of the Chern-Simons diffusion rate, which shows some discrepancy with the usual effective description which is anomalous magnetohydrodynamic. We also present some exploratory results on the behaviour of an initial chiral chemical potential.
DOI: https://doi.org/10.22323/1.334.0044
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