Inhomogeneous holographic thermalization
2013 (English)In: Journal of High Energy Physics (JHEP), ISSN 1029-8479, E-ISSN 1126-6708, no 10, 082- p.Article in journal (Refereed) Published
The sudden injection of energy in a strongly coupled conformal field theory and its subsequent thermalization can be holographically modeled by a shell falling into anti-de Sitter space and forming a black brane. For a homogeneous shell, Bhattacharyya and Minwalla were able to study this process analytically using a weak field approximation. Motivated by event-by-event fluctuations in heavy ion collisions, we include inhomogeneities in this model, obtaining analytic results in a long wavelength expansion. In the early-time window in which our approximations can be trusted, the resulting evolution matches well with that of a simple free streaming model. Near the end of this time window, we find that the stress tensor approaches that of second-order viscous hydrodynamics. We comment on possible lessons for heavy ion phenomenology.
Place, publisher, year, edition, pages
2013. no 10, 082- p.
Gauge-gravity correspondence, Holography and quark-gluon plasmas
IdentifiersURN: urn:nbn:se:uu:diva-210571DOI: 10.1007/JHEP10(2013)082ISI: 000325720600005OAI: oai:DiVA.org:uu-210571DiVA: diva2:663974