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Inhomogeneous Thermalization in Strongly Coupled Field Theories
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2013 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 111, no 23, 231602- p.Article in journal (Refereed) Published
Abstract [en]

To describe theoretically the creation and evolution of the quark-gluon plasma, one typically employs three ingredients: a model for the initial state, nonhydrodynamic early time evolution, and hydrodynamics. In this Letter we study the nonhydrodynamic early time evolution using the AdS/CFT correspondence in the presence of inhomogeneities. We find that the AdS description of the early time evolution is well matched by free streaming. Near the end of the early time interval where our analytic computations are reliable, the stress tensor agrees with the second order hydrodynamic stress tensor computed from the local energy density and fluid velocity. Our techniques may also be useful for the study of far-from-equilibrium strongly coupled systems in other areas of physics.

Place, publisher, year, edition, pages
2013. Vol. 111, no 23, 231602- p.
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Natural Sciences
URN: urn:nbn:se:uu:diva-216753DOI: 10.1103/PhysRevLett.111.231602ISI: 000328616300010OAI: oai:DiVA.org:uu-216753DiVA: diva2:690803
Available from: 2014-01-24 Created: 2014-01-24 Last updated: 2014-01-24Bibliographically approved

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Keski-Vakkuri, Esko
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