Thermalization and confinement in strongly coupled gauge theories - Archive ouverte HAL
Communication Dans Un Congrès Année : 2016

Thermalization and confinement in strongly coupled gauge theories

Takaaki Ishii
  • Fonction : Auteur
Christopher Rosen
  • Fonction : Auteur

Résumé

Quantum field theories of strongly interacting matter sometimes have a useful holographic description in terms of the variables of a gravitational theory in higher dimensions. This duality maps time dependent physics in the gauge theory to time dependent solutions of the Einstein equations in the gravity theory. In order to better understand the process by which 'real world' theories such as QCD behave out of thermodynamic equilibrium, we study time dependent perturbations to states in a model of a confining, strongly coupled gauge theory via holography. Operationally, this involves solving a set of non-linear Einstein equations supplemented with specific time dependent boundary conditions. The resulting solutions allow one to comment on the timescale by which the perturbed states thermalize, as well as to quantify the properties of the final state as a function of the perturbation parameters. We comment on the influence of the dual gauge theory's confinement scale on these results, as well as the appearance of a previously anticipated universal scaling regime in the 'abrupt quench' limit.

Dates et versions

hal-01554039 , version 1 (03-07-2017)

Identifiants

Citer

Takaaki Ishii, Elias Kiritsis, Christopher Rosen. Thermalization and confinement in strongly coupled gauge theories. 4th International Conference on New Frontiers in Physics, Aug 2015, Kolymbari, Greece. pp.02018, ⟨10.1051/epjconf/201612602018⟩. ⟨hal-01554039⟩
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