Mesoscopic to universal crossover of transmission phase of multi-level quantum dots

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dc.creatorKarrasch, C.
dc.creatorHecht, T.
dc.creatorWeichselbaum, A.
dc.creatorOreg, Y.
dc.creatorvon Delft, J.
dc.creatorMeden, V.
dc.date2006-09-08
dc.date2007-03-22
dc.date.accessioned2026-07-07T08:41:06Z
dc.date.available2026-07-07T08:41:06Z
dc.descriptionTransmission phase αmeasurements of many-electron quantum dots (small mean level spacing δ) revealed universal phase lapses by πbetween consecutive resonances. In contrast, for dots with only a few electrons (large δ), the appearance or not of a phase lapse depends on the dot parameters. We show that a model of a multi-level quantum dot with local Coulomb interactions and arbitrary level-lead couplings reproduces the generic features of the observed behavior. The universal behavior of αfor small δfollows from Fano-type antiresonances of the renormalized single-particle levels.
dc.description4 pages, version accepted for publication in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0609191
dc.identifierhttp://arxiv.org/abs/cond-mat/0609191
dc.identifierPhys. Rev. Lett. 98, 186802 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.186802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/141578
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleMesoscopic to universal crossover of transmission phase of multi-level quantum dots
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