20.500.12556/RUL-179108 Quenching through the QCD chiral phase transition We present a detailed numerical and analytical study of the out-of-equilibrium dynamics of Model G, the dynamical universality class relevant to the chiral phase transition. We perform numerical 3D stochastic (Langevin) simulations of the O(4) critical point for large lattices in the chiral limit. We quench the system from the high-temperature unbroken phase to the broken phase and study the nonequilibrium dynamics of pion fields. Strikingly, the nonequilibrium evolution of the two-point functions exhibits a regime of growth, a parametrically large enhancement, and a subsequent slow relaxation to equilibrium. We analyze our numerical results using dynamic critical scaling and mean-field theory. The growth of the two-point functions is determined by the nonlinear dynamics of an ideal non-Abelian superfluid, which is a limit of Model G that reflects the broken chiral symmetry. We also relate the nonequilibrium two-point functions to a long-lived parametric enhancement of soft pion yields relative to thermal equilibrium following a quench. high energy physics critical phenomena quantum chromodynamics phase transitions fizika visokih energij kritični pojavi kvantna kromodinamika fazni prehodi true false true Angleški jezik Slovenski jezik Članek v reviji 2026-02-05 10:15:31 2026-02-05 10:15:32 2026-02-06 04:53:00 0000-00-00 00:00:00 2025 0 0 Str. 114019-1-114019-27 iss. 11 Vol. 112 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.1 2470-0010 10.1103/plfm-z5xx 267410691 plfm-z5xx.pdf plfm-z5xx.pdf 1 2042102A09798F5F8A5CC97FC83B7D99 0996dd4fc2ecfbab4121749dc838777c2f93ba6fff5286bc3f65c443058b56ff 4c0c3a05-0273-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227259 https://journals.aps.org/prd/abstract/10.1103/plfm-z5xx 0 58396dcb-0273-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227261 Fakulteta za matematiko in fiziko 0 0 0