Analysis of the phase lapse problem in closed interferometers

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buir.contributor.authorTanatar, Bilal
buir.contributor.orcidTanatar, Bilal|0000-0002-5246-0119
dc.citation.epage3234en_US
dc.citation.issueNumber45en_US
dc.citation.spage3229en_US
dc.citation.volumeNumber376en_US
dc.contributor.authorTolea, M.en_US
dc.contributor.authorMoldoveanu, V.en_US
dc.contributor.authorDinu, I. V.en_US
dc.contributor.authorTanatar, Bilalen_US
dc.date.accessioned2016-02-08T09:44:36Z
dc.date.available2016-02-08T09:44:36Z
dc.date.issued2012en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe investigate the connection between the asymmetry of the Fano resonances in a mesoscopic interferometer with an embedded quantum dot and the π lapses in the phase of the bare dot transmittance. Consecutive Fano resonances with the same (opposite) sign of the Fano parameter imply the presence (absence) of a phase lapse with π between the corresponding resonances of the dot. Our results suggest that the famous phase lapse problem, first reported by Schuster et al. [R. Schuster, E. Buks, M. Heiblum, D. Mahalu, V. Umansky, H. Shtrikman, Nature 385 (1997) 417], can therefore be experimentally addressed in closed interferometers. It is also proposed that the Fano effect can be used to extract the phase distributions of the eigenfunctions for a mesoscopic 2D shape, via the parity of the resonances. In the presence of electron-electron interaction, one can calculate the phases of the T-matrix elements. The numerical results lead to the same conclusions as for the non-interacting case.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T09:44:36Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2012en
dc.identifier.doi10.1016/j.physleta.2012.07.007en_US
dc.identifier.eissn1873-2429
dc.identifier.issn0375-9601
dc.identifier.urihttp://hdl.handle.net/11693/21310
dc.language.isoEnglishen_US
dc.publisherElsevier B.V.en_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.physleta.2012.07.007en_US
dc.source.titlePhysics Letters Section A : General, Atomic and Solid State Physicsen_US
dc.subjectAharonov-Bohm interferometeren_US
dc.subjectFano parameteren_US
dc.subjectTransmittance phaseen_US
dc.titleAnalysis of the phase lapse problem in closed interferometersen_US
dc.typeArticleen_US

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