Lattice QCD with mismatched Fermi surfaces
High Energy Physics - Lattice
2014-04-30 v2 High Energy Physics - Phenomenology
Abstract
We study two flavor fermions with mismatched chemical potentials in quenched lattice QCD. We first consider a large isospin chemical potential, where a charged pion is condensed, and then introduce a small mismatch between the chemical potentials of the up quark and the anti-down quark. We find that the homogeneous pion condensate is destroyed by the mismatch of the chemical potentials. We also find that the two-point correlation function shows spatial oscillation, which indicates an inhomogeneous ground state, although it is not massless but massive in the present simulation setup.
Keywords
Cite
@article{arxiv.1402.3049,
title = {Lattice QCD with mismatched Fermi surfaces},
author = {Arata Yamamoto},
journal= {arXiv preprint arXiv:1402.3049},
year = {2014}
}