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Thermalization and entanglement following a nonrelativistic holographic quench
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 85, no 2, 026005- p.Article in journal (Refereed) Published
Abstract [en]

We develop a holographic model for thermalization following a quench near a quantum critical point with nontrivial dynamical critical exponent. The anti-de Sitter Vaidya null collapse geometry is generalized to asymptotically Lifshitz spacetime. Nonlocal observables such as two-point functions and entanglement entropy in this background then provide information about the length and time scales relevant to thermalization. The propagation of thermalization exhibits similar "horizon" behavior as has been seen previously in the conformal case and we give a heuristic argument for why it also appears here. Finally, analytic upper bounds are obtained for the thermalization rates of the nonlocal observables.

Place, publisher, year, edition, pages
2012. Vol. 85, no 2, 026005- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-169965DOI: 10.1103/PhysRevD.85.026005ISI: 000299930200016OAI: oai:DiVA.org:uu-169965DiVA: diva2:508407
Available from: 2012-03-08 Created: 2012-03-07 Last updated: 2012-03-08Bibliographically approved

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Keski-Vakkuri, Esko
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