Show simple item record

dc.contributor.authorLucas, Andrew James
dc.contributor.authorSachdev, Subir
dc.date.accessioned2015-06-12T18:06:12Z
dc.date.issued2015
dc.identifier.citationLucas, Andrew, and Subir Sachdev. 2015. “Conductivity of Weakly Disordered Strange Metals: From Conformal to Hyperscaling-Violating Regimes.” Nuclear Physics B 892 (March): 239–268. doi:10.1016/j.nuclphysb.2015.01.017.en_US
dc.identifier.issn0550-3213en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:16310005
dc.description.abstractWe present a semi-analytic method for constructing holographic black holes that interpolate from anti-de Sitter space to hyperscaling-violating geometries. These are holographic duals of conformal field theories in the presence of an applied chemical potential, μ, at a non-zero temperature, T , and allow us to describe the crossover from ‘strange metal’ physics at T≪μT≪μ, to conformal physics at T≫μT≫μ. Our holographic technique adds an extra gauge field and exploits structure of the Einstein–Maxwell system to manifestly find 1-parameter families of solutions of the Einstein-matter system in terms of a small family of functions, obeying a nested set of differential equations. Using these interpolating geometries, we re-consider holographically some recent questions of interest about hyperscaling-violating field theories. Our focus is a more detailed holographic computation of the conductivity of strange metals, weakly perturbed by disorder coupled to scalar operators, including both the average conductivity as well as sample-to-sample fluctuations. Our findings are consistent with previous scaling arguments, though we point out logarithmic corrections in some special (holographic) cases. We also discuss the nature of superconducting instabilities in hyperscaling-violating geometries with appropriate choices of scalar couplings.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherElsevier BVen_US
dc.relation.isversionofdoi:10.1016/j.nuclphysb.2015.01.017en_US
dash.licenseOAP
dc.titleConductivity of weakly disordered strange metals: From conformal to hyperscaling-violating regimesen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalNuclear Physics Ben_US
dash.depositing.authorSachdev, Subir
dc.date.available2015-06-12T18:06:12Z
dc.identifier.doi10.1016/j.nuclphysb.2015.01.017*
workflow.legacycommentsFAR 2014en_US
dash.contributor.affiliatedLucas, Andrew James
dash.contributor.affiliatedSachdev, Subir
dc.identifier.orcid0000-0003-3098-5683


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record