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dc.contributor.authorThomson, Alex
dc.contributor.authorSachdev, Subir
dc.date.accessioned2019-09-11T16:12:00Z
dc.date.issued2017-06-26
dc.identifier.citationThomson, Alex, and Subir Sachdev. 2017. Quantum Electrodynamics in 2+1 Dimensions With Quenched Disorder: Quantum Critical States With Interactions and Disorder. Physics Review B 95, no. 23: 235146.en_US
dc.identifier.issn2469-9950en_US
dc.identifier.issn2469-9969en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41321665*
dc.description.abstractQuantum electrodynamics in 2+1 dimensions (QED3) is a strongly coupled conformal field theory (CFT) of a U(1) gauge field coupled to 2N two-component massless fermions. The N=2 CFT has been proposed as a ground state of the spin-1/2 kagome Heisenberg antiferromagnet. We study QED3 in the presence of weak quenched disorder in its two spatial directions. When the disorder explicitly breaks the fermion flavor symmetry from SU(2N) → U(1) × SU(N) but preserves time-reversal symmetry, we find that the theory flows to a nontrivial fixed line at nonzero disorder with a continuously varying dynamical critical exponent z>1. We determine the zero-temperature flavor (spin) conductivity along the critical line. Our calculations are performed in the large-N limit, and the disorder is handled using the replica method.en_US
dc.description.sponsorshipPhysicsen_US
dc.language.isoen_USen_US
dc.publisherAmerican Physical Society (APS)en_US
dc.relation.hasversionhttps://arxiv.org/abs/1702.04723en_US
dash.licenseOAP
dc.titleQuantum Electrodynamics in 2+1 Dimensions With Quenched Disorder: Quantum Critical States With Interactions and Disorderen_US
dc.typeJournal Articleen_US
dc.description.versionAccepted Manuscripten_US
dc.relation.journalPhysics Review Ben_US
dash.depositing.authorSachdev, Subir
dc.date.available2019-09-11T16:12:00Z
dash.workflow.commentsFAR2017en_US
dash.funder.nameNational Science Foundationen_US
dash.funder.nameArmy Research Office (ARO)en_US
dash.funder.nameIndustry Canadaen_US
dash.funder.awardDMR-1360789en_US
dash.funder.awardW911NF-14-1-0003en_US
dc.identifier.doi10.1103/physrevb.95.235146
dc.source.journalPhys. Rev. B
dash.source.volume95;23
dash.contributor.affiliatedSachdev, Subir


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