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dc.contributor.authorRemez, B
dc.contributor.authorCooper, NR
dc.date.accessioned2022-03-24T00:30:31Z
dc.date.available2022-03-24T00:30:31Z
dc.date.issued2022
dc.identifier.issn2643-1564
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/335320
dc.description.abstractWe show that the "dark condensates" that arise when excitons form a Bose-Einstein condensate in a material with an indirect bandgap are not completely dark to optical emission. Rather, such states are "leaky condensates" in which optical emission is facilitated by many-body interactions. We analyze the properties of these leaky condensates in the context of twisted bilayers of transition metal dichalcogenides, which host strongly interacting excitons and an indirect bandgap. We show that this interaction-driven "leaky" emission dominates photoluminescence at low temperatures, with distinctive qualitative features. Finally, we propose that in these materials, unique intervalley physics can lead to crystal symmetry-breaking excitonic ordering, with implications for optical processes.
dc.description.sponsorshipCambridge Commonwealth, European and International Trust Simons Foundation
dc.publisherAmerican Physical Society (APS)
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleLeaky exciton condensates in transition metal dichalcogenide moiré bilayers
dc.typeArticle
dc.publisher.departmentDepartment of Physics Student
dc.date.updated2022-03-22T21:15:08Z
prism.publicationNamePhysical Review Research
dc.identifier.doi10.17863/CAM.82752
dcterms.dateAccepted2022-03-22
rioxxterms.versionofrecord10.1103/PhysRevResearch.4.L022042
rioxxterms.versionVoR
dc.contributor.orcidRemez, B [0000-0002-8108-5303]
dc.contributor.orcidCooper, NR [0000-0002-4662-1254]
dc.identifier.eissn2643-1564
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P009565/1)
pubs.funder-project-idSimons Foundation (511029)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P034616/1)
cam.issuedOnline2022-05-24
cam.orpheus.counter4
cam.depositDate2022-03-22
pubs.licence-identifierapollo-deposit-licence-2-1
pubs.licence-display-nameApollo Repository Deposit Licence Agreement


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International