Thermal QCD with external imaginary electric fields on the lattice
High Energy Physics - Lattice
2021-10-26 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Nuclear Theory
Abstract
We study QCD at finite temperature in the presence of imaginary electric fields. In particular, we determine the electric susceptibility, the leading coefficient in the expansion of the QCD pressure in the imaginary field. Unlike for magnetic fields, at nonzero temperature this coefficient requires a non-trivial separation of genuine electric field-related effects and spurious effects related to the chemical potential, which becomes an unphysical gauge parameter in this setting. Our results are based on lattice simulations with stout improved dynamical staggered quarks at physical quark masses.
Cite
@article{arxiv.2110.12189,
title = {Thermal QCD with external imaginary electric fields on the lattice},
author = {Gergely Endrodi and Gergely Marko},
journal= {arXiv preprint arXiv:2110.12189},
year = {2021}
}
Comments
8 pages, 6 figures, contribution to the 38th International Symposium on Lattice Field Theory (LATTICE21)