Classicalization and unitarization of wee partons in QCD and gravity: The CGC-black hole correspondence

Dvali, Gia und Venugopalan, Raju (2022): Classicalization and unitarization of wee partons in QCD and gravity: The CGC-black hole correspondence. In: Physical Review D, Bd. 105, Nr. 5, 56026

Abstract

We discuss a remarkable correspondence between the description of black holes as highly occupied condensates of N weakly interacting gravitons and that of color glass condensates (CGCs) as highly occupied gluon states. In both cases, the dynamics of wee partons in Regge asymptotics is controlled by emergent semihard scales that lead to perturbative unitarization and classicalization of 2 -> N particle amplitudes at weak coupling. In particular, they attain a maximal entropy permitted by unitarity, bounded by the inverse coupling alpha of the respective constituents. Strikingly, this entropy is equal to the area measured in units of the Goldstone constant corresponding to the spontaneous breaking of Poincare symmetry by the corresponding graviton or gluon condensate. In gravity, the Goldstone constant is the Planck scale, and gives rise to the Bekenstein-Hawking entropy. Likewise, in the CGC, the corresponding Goldstone scale is determined by the onset of gluon screening. We point to further similarities in black hole formation, thermalization and decay, to that of the glasma matter formed from colliding CGCs in ultrarelativistic nuclear collisions, which decays into a quark-gluon plasma.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 2470-0010
• Sprache: Englisch
• DFG: Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - 390814868