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Entanglement entropy in generalised quantum Lifshitz models
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). University of Iceland, Iceland.
Number of Authors: 32019 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 8, article id 072Article in journal (Refereed) Published
Abstract [en]

We compute universal finite corrections to entanglement entropy for generalised quantum Lifshitz models in arbitrary odd spacetime dimensions. These are generalised free field theories with Lifshitz scaling symmetry, where the dynamical critical exponent z equals the number of spatial dimensions d, and which generalise the 2+1-dimensional quantum Lifshitz model to higher dimensions. We analyse two cases: one where the spatial manifold is a d-dimensional sphere and the entanglement entropy is evaluated for a hemisphere, and another where a d-dimensional flat torus is divided into two cylinders. In both examples the finite universal terms in the entanglement entropy are scale invariant and depend on the compactification radius of the scalar field.

Place, publisher, year, edition, pages
2019. no 8, article id 072
Keywords [en]
Conformal Field Theory, Field Theories in Higher Dimensions
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-173154DOI: 10.1007/JHEP08(2019)072ISI: 000483191300003OAI: oai:DiVA.org:su-173154DiVA, id: diva2:1354009
Available from: 2019-09-24 Created: 2019-09-24 Last updated: 2019-09-24Bibliographically approved

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Thorlacius, Lárus
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