Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma

• Verfasst von: Mazeliauskas, Aleksas [VerfasserIn]
• Verfasst von: Berges, Jürgen [VerfasserIn]
• Titel: Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma
• Verf.angabe: Aleksas Mazeliauskas, Jürgen Berges
• Jahr: 2021
• Umfang: 4 S.
• Fussnoten: Publikationsdatum online: 10 December 2020 ; Gesehen am 26.02.2022
• Titel Quelle: Enthalten in: Nuclear physics <Amsterdam> / A
• Ort Quelle: Amsterdam : North-Holland Publ. Co., 1967
• Jahr Quelle: 2021
• Band/Heft Quelle: 1005(2021), Artikel-ID 121966, Seite 1-4
• ISSN Quelle: 1873-1554
• DOI: doi:10.1016/j.nuclphysa.2020.121966
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1793977259

Abstract

We use the leading-order QCD kinetic equations with quarks and gluons to study the quark-gluon plasma in the far-from-equilibrium state. At weak coupling, we demonstrate the emergence of early hydrodynamic behavior—prescaling—around a nonthermal fixed point, which is qualitatively different from the more conventional hydrodynamics around equilibrium. Prescaling is a far-from-equilibrium phenomenon which describes the rapid establishment of a universal scaling form of distributions much before the universal values of their scaling exponents are realized. The dynamics in the prescaling regime is encoded in a few time-dependent scaling exponents, whose slow evolution gives rise to far-from-equilibrium hydrodynamic description.