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dc.contributor.authorLuukko, Perttu J. J.
dc.contributor.authorKlales, Anna
dc.contributor.authorKaplan, Lev
dc.contributor.authorHeller, Eric J.
dc.contributor.authorRäsänen, Esa
dc.contributor.authorDrury, Byron Coffin
dc.date.accessioned2017-03-31T14:42:00Z
dc.date.available2017-03-31T14:42:00Z
dc.date.issued2016-11
dc.date.submitted2016-08
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/1721.1/107795
dc.description.abstractWe discover and characterise strong quantum scars, or quantum eigenstates resembling classical periodic orbits, in two-dimensional quantum wells perturbed by local impurities. These scars are not explained by ordinary scar theory, which would require the existence of short, moderately unstable periodic orbits in the perturbed system. Instead, they are supported by classical resonances in the unperturbed system and the resulting quantum near-degeneracy. Even in the case of a large number of randomly scattered impurities, the scars prefer distinct orientations that extremise the overlap with the impurities. We demonstrate that these preferred orientations can be used for highly efficient transport of quantum wave packets across the perturbed potential landscape. Assisted by the scars, wave-packet recurrences are significantly stronger than in the unperturbed system. Together with the controllability of the preferred orientations, this property may be very useful for quantum transport applications.en_US
dc.language.isoen_US
dc.publisherNature Publishing Groupen_US
dc.relation.isversionofhttp://dx.doi.org/10.1038/srep37656en_US
dc.rightsCreative Commons Attribution 4.0 International Licenseen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceNatureen_US
dc.titleStrong quantum scarring by local impuritiesen_US
dc.typeArticleen_US
dc.identifier.citationLuukko, Perttu J. J. et al. “Strong Quantum Scarring by Local Impurities.” Scientific Reports 6.1 (2016): n. pag.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorDrury, Byron Coffin
dc.relation.journalScientific Reportsen_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.orderedauthorsLuukko, Perttu J. J.; Drury, Byron; Klales, Anna; Kaplan, Lev; Heller, Eric J.; Räsänen, Esaen_US
dspace.embargo.termsNen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-0939-4718
mit.licensePUBLISHER_CCen_US


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