Opin vísindi

Correlation functions in theories with Lifshitz scaling

Show simple item record

dc.contributor Háskóli Íslands
dc.contributor University of Iceland
dc.contributor.author Keränen, Ville
dc.contributor.author Sybesma, Watse
dc.contributor.author Szepietowski, Phillip
dc.contributor.author Thorlacius, Larus
dc.date.accessioned 2017-07-10T11:31:29Z
dc.date.available 2017-07-10T11:31:29Z
dc.date.issued 2017-05
dc.identifier.citation Keränen, V., Sybesma, W., Szepietowski, P., & Thorlacius, L. (2017). Correlation functions in theories with Lifshitz scaling. Journal of High Energy Physics, 2017(5), 33. doi:10.1007/jhep05(2017)033
dc.identifier.issn 1126-6708
dc.identifier.issn 1029-8479 (eISSN)
dc.identifier.uri https://hdl.handle.net/20.500.11815/325
dc.description.abstract The 2+1 dimensional quantum Lifshitz model can be generalised to a class of higher dimensional free field theories that exhibit Lifshitz scaling. When the dynamical critical exponent equals the number of spatial dimensions, equal time correlation functions of scaling operators in the generalised quantum Lifshitz model are given by a d-dimensional higher-derivative conformal field theory. Autocorrelation functions in the generalised quantum Lifshitz model in any number of dimensions can on the other hand be expressed in terms of autocorrelation functions of a two-dimensional conformal field theory. This also holds for autocorrelation functions in a strongly coupled Lifshitz field theory with a holographic dual of Einstein-Maxwell-dilaton type. The map to a two-dimensional conformal field theory extends to autocorrelation functions in thermal states and out-of-equilbrium states preserving symmetry under spatial translations and rotations in both types of Lifshitz models. Furthermore, the spectrum of quasinormal modes of scalar field perturbations in Lifshitz black hole backgrounds can be obtained analytically at low spatial momenta and exhibits a linear dispersion relation at z = d. At high momentum, the mode spectrum can be obtained in a WKB approximation and displays very different behaviour compared to holographic duals of conformal field theories. This has implications for thermalisation in strongly coupled Lifshitz field theories with z > 1.
dc.description.sponsorship Icelandic Research Fund grant 163422-051 University of Iceland Research Fund Swedish Research Council 621-2014-5838 Netherlands Organisation for Scientific Research (NWO) under the VICI grant 680-47-603 Dutch Ministry of Education, Culture and Science (OCW)
dc.format.extent 33
dc.language.iso en
dc.publisher Springer Nature
dc.relation.ispartofseries Journal of High Energy Physics;2017(5)
dc.rights info:eu-repo/semantics/openAccess
dc.subject AdS-CFT correspondence
dc.subject Conformal field theory
dc.subject Holography
dc.subject Condensed matter physics
dc.subject Skammtafræði
dc.subject Svarthol (stjörnufræði)
dc.title Correlation functions in theories with Lifshitz scaling
dc.type info:eu-repo/semantics/article
dcterms.license This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
dc.description.version Peer Reviewed
dc.identifier.journal Journal of High Energy Physics
dc.identifier.doi 10.1007/JHEP05(2017)033
dc.contributor.department Raunvísindastofnun (HÍ)
dc.contributor.department Science Institute (UI)
dc.contributor.school Verkfræði- og náttúruvísindasvið (HÍ)
dc.contributor.school School of Engineering and Natural Sciences (UI)

Files in this item

This item appears in the following Collection(s)

Show simple item record