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dc.contributor.authorLewandowski, Cyprian Krzysztof
dc.contributor.authorLevitov, Leonid
dc.date.accessioned2018-04-19T18:38:52Z
dc.date.available2018-04-19T18:38:52Z
dc.date.issued2018-03
dc.date.submitted2017-12
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.urihttp://hdl.handle.net/1721.1/114805
dc.description.abstractInteractions between charge carriers in graphene lead to logarithmic renormalization of observables mimicking the behavior known in (3+1)-dimensional quantum electrodynamics (QED). Here we analyze soft electron-hole (e-h) excitations generated as a result of fast charge dynamics, a direct analog of the signature QED effect—multiple soft photons produced by the QED vacuum shakeup. We show that such excitations are generated in photon absorption, when a photogenerated high-energy e-h pair cascades down in energy and gives rise to multiple soft e-h excitations. This fundamental process is manifested in a double-log divergence in the emission rate of soft pairs and a characteristic power-law divergence in their energy spectrum of the form 1/ω ln(ω/Δ). Strong carrier-carrier interactions make pair production a prominent pathway in the photoexcitation cascade.en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevB.97.115423en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAmerican Physical Societyen_US
dc.titleSoft pair excitations and double-log divergences due to carrier interactions in grapheneen_US
dc.typeArticleen_US
dc.identifier.citationLewandowski, Cyprian and L. S. Levitov. "Soft pair excitations and double-log divergences due to carrier interactions in graphene." Physical Review B 97, 11 (March 2018): 115423 © 2018 American Physical Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorLewandowski, Cyprian Krzysztof
dc.contributor.mitauthorLevitov, Leonid
dc.relation.journalPhysical Review Ben_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2018-03-15T18:00:28Z
dc.language.rfc3066en
dc.rights.holderAmerican Physical Society
dspace.orderedauthorsLewandowski, Cyprian; Levitov, L. S.en_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-6944-9805
dc.identifier.orcidhttps://orcid.org/0000-0002-4268-731X
mit.licensePUBLISHER_POLICYen_US


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