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dc.contributor.authorKhasin, Michael
dc.contributor.authorCao, Jianshu
dc.contributor.authorMoix, Jeremy
dc.date.accessioned2013-10-07T13:49:41Z
dc.date.available2013-10-07T13:49:41Z
dc.date.issued2013-08
dc.date.submitted2013-05
dc.identifier.issn1367-2630
dc.identifier.urihttp://hdl.handle.net/1721.1/81339
dc.description.abstractExcitonic transport in static-disordered one dimensional systems is studied in the presence of thermal fluctuations that are described by the Haken–Strobl–Reineker model. For short times, non-diffusive behavior is observed that can be characterized as the free-particle dynamics on the length-scale bounded by the Anderson localized system. Over longer time scales, the environment-induced dephasing is sufficient to overcome the Anderson localization caused by the disorder and allow for transport to occur which is always seen to be diffusive. In the limiting regimes of weak and strong dephasing quantum master equations are developed, and their respective scaling relations imply the existence of a maximum in the diffusion constant as a function of the dephasing rate that is confirmed numerically. In the weak dephasing regime, it is demonstrated that the diffusion constant is proportional to the square of the localization length which leads to a significant enhancement of the transport rate over the classical prediction. Finally, the influence of noise and disorder on the absorption spectrum is presented and its relationship to the transport properties is discussed.en_US
dc.description.sponsorshipNational Science Foundation (U.S.) (Grant CHE-1112825)en_US
dc.description.sponsorshipUnited States. Defense Advanced Research Projects Agency (Grant N99001-10-1-4063)en_US
dc.description.sponsorshipUnited States. Dept. of Energy. Center for Excitonics (Award DE-SC0001088)en_US
dc.language.isoen_US
dc.publisherIOP Publishingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1088/1367-2630/15/8/085010en_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourceInstitute of Physicsen_US
dc.titleCoherent quantum transport in disordered systems: I. The influence of dephasing on the transport properties and absorption spectra on one-dimensional systemsen_US
dc.typeArticleen_US
dc.identifier.citationMoix, Jeremy M, Michael Khasin, and Jianshu Cao. “Coherent quantum transport in disordered systems: I. The influence of dephasing on the transport properties and absorption spectra on one-dimensional systems.” New Journal of Physics 15, no. 8 (August 1, 2013): 085010.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemistryen_US
dc.contributor.mitauthorMoix, Jeremyen_US
dc.contributor.mitauthorCao, Jianshuen_US
dc.contributor.mitauthorKhasin, Michaelen_US
dc.relation.journalNew Journal of Physicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsMoix, Jeremy M; Khasin, Michael; Cao, Jianshuen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-7616-7809
mit.licensePUBLISHER_CCen_US
mit.metadata.statusComplete


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