Chiral soliton lattice phase in warm QCD
Tomáš Brauner (Department of Mathematics and Physics, University of Stavanger, Stavanger, Norway); Helena Kolešová (Department of Mathematics and Physics, University of Stavanger, Stavanger, Norway)
; Naoki Yamamoto (Department of Physics, Keio University, Yokohama, Japan)
We analyze the phase diagram of quantum chromodynamics at low-to-moderate temperature, baryon chemical potential and external magnetic field within chiral perturbation theory at next-to-leading order of the derivative expansion. Our main result is that the anomaly-induced chiral soliton lattice (CSL) phase is stabilized by thermal fluctuations. As a consequence, the CSL state may survive up to temperatures at which chiral symmetry is restored.