Supercooled Goldstone bosons at the QCD chiral phase transition
We discuss a universal nonequilibrium enhancement of long-wavelength Goldstone bosons induced by quenches to the broken phase in Model G—the dynamical universality class of an - - O - ( - 4 - ) - -...
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| Auteurs principaux: | , , , , |
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| Format: | Article (Journal) |
| Langue: | anglais |
| Publié: |
12 December, 2025
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| In: |
Physical review letters
Year: 2025, Volume: 135, Numéro: 24, Pages: 1-7 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/wyn4-ncdc |
| Accès en ligne: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/wyn4-ncdc Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/wyn4-ncdc 
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| Notes sur l'auteur: | Adrien Florio, Eduardo Grossi, Aleksas Mazeliauskas, Alexander Soloviev, and Derek Teaney |
| Résumé: | We discuss a universal nonequilibrium enhancement of long-wavelength Goldstone bosons induced by quenches to the broken phase in Model G—the dynamical universality class of an - - O - ( - 4 - ) - - antiferromagnet and the chiral phase transition in QCD. Scaling arguments for the coarsening dynamics describing the formation of the chiral condensate predict a parametric enhancement in the infrared spectra of Goldstone bosons, a prediction confirmed by stochastic simulations of the transition. The details of the enhancement are determined by the nonlinear dynamics of a superfluid effective theory, which is a limit of Model G reflecting the broken - - O - ( - 4 - ) - - symmetry. Our results translate to a parametric enhancement of low-momentum pions in heavy-ion collisions at the LHC, which are underpredicted in current hydrodynamic models without critical dynamics. |
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| Description: | Gesehen am 22.06.2026 |
| Description matérielle: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/wyn4-ncdc |