Weak and strong coupling equilibration in nonabelian gauge theories
Dec 16, 2015
24 pages
Published in:
- JHEP 04 (2016) 031
- Published: Apr 6, 2016
e-Print:
- 1512.05347 [hep-th]
Report number:
- CERN-PH-TH-2015-304,
- MIT-CTP-4750
Citations per year
Abstract: (arXiv)
We present a direct comparison studying equilibration through kinetic theory at weak coupling and through holography at strong coupling in the same set-up. The set-up starts with a homogeneous thermal state, which then smoothly transitions through an out-of-equilibrium phase to an expanding system undergoing boost-invariant flow. This first apples-to-apples comparison of equilibration provides a benchmark for similar equilibration processes in heavy-ion collisions, where the equilibration mechanism is still under debate. We find that results at weak and strong coupling can be smoothly connected by simple, empirical power-laws for the viscosity, equilibration time and entropy production of the system.Note:
- 24 pages, 9 figures
- AdS-CFT Correspondence
- Holography and quark-gluon plasmas
- Perturbative QCD
- Quark-Gluon Plasma
- gauge field theory: nonabelian
- entropy: production
- heavy ion: scattering
- strong coupling
- weak coupling
- holography
References(79)
Figures(11)
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