dc.contributor.author | Thomson, Alex | |
dc.contributor.author | Sachdev, Subir | |
dc.date.accessioned | 2019-09-11T16:12:00Z | |
dc.date.issued | 2017-06-26 | |
dc.identifier.citation | Thomson, 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.issn | 2469-9950 | en_US |
dc.identifier.issn | 2469-9969 | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:41321665 | * |
dc.description.abstract | Quantum 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.sponsorship | Physics | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | American Physical Society (APS) | en_US |
dc.relation.hasversion | https://arxiv.org/abs/1702.04723 | en_US |
dash.license | OAP | |
dc.title | Quantum Electrodynamics in 2+1 Dimensions With Quenched Disorder: Quantum Critical States With Interactions and Disorder | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | Physics Review B | en_US |
dash.depositing.author | Sachdev, Subir | |
dc.date.available | 2019-09-11T16:12:00Z | |
dash.workflow.comments | FAR2017 | en_US |
dash.funder.name | National Science Foundation | en_US |
dash.funder.name | Army Research Office (ARO) | en_US |
dash.funder.name | Industry Canada | en_US |
dash.funder.award | DMR-1360789 | en_US |
dash.funder.award | W911NF-14-1-0003 | en_US |
dc.identifier.doi | 10.1103/physrevb.95.235146 | |
dc.source.journal | Phys. Rev. B | |
dash.source.volume | 95;23 | |
dash.contributor.affiliated | Sachdev, Subir | |