Quenching through the QCD chiral phase transition

Florio, Adrien (avtor), Grossi, Eduardo (avtor), Mazeliauskas, Aleksas (avtor), Soloviev, Alexander (avtor), Teaney, Derek (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: high energy physics, critical phenomena, quantum chromodynamics, phase transitions
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: Str. 114019-1-114019-27
• Številčenje: Vol. 112, iss. 11
• PID: 20.500.12556/RUL-179108
• UDK: 539.1
• ISSN pri članku: 2470-0010
• DOI: 10.1103/plfm-z5xx
• COBISS.SI-ID: 267410691
• Datum objave v RUL: 05.02.2026

Gradivo je del revije

• Naslov: Physical review
• Skrajšan naslov: Phys. rev., D
• Založnik: American Physical Society
• ISSN: 2470-0010
• COBISS.SI-ID: 29757223

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: fizika visokih energij, kritični pojavi, kvantna kromodinamika, fazni prehodi