Quasibound states at thresholds in multichannel impurity scattering

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dc.creatorKim, Sang Wook
dc.creatorPark, Hwa-Kyun
dc.creatorSim, H. -S.
dc.creatorSchomerus, Henning
dc.date2002-03-20
dc.date2002-10-01
dc.date.accessioned2026-07-07T02:44:44Z
dc.date.available2026-07-07T02:44:44Z
dc.descriptionWe investigate the threshold behavior of transmission resonances and quasibound states in the multichannel scattering problems of a one dimensional (1D) time-dependent impurity potential, and the related problem of a single impurity in a quasi 1D wire. It was claimed before in the literature that a quasibound state disappears when a transmission zero collides with the subband boundary. However, the transmission line shape, the Friedel sum rule, and the delay time show that the quasibound states still survive and affect the physical quantities. We discuss the relation between threshold behavior of transmission resonances, and quasibound states and their boundary conditions in the general context of multichannel scatterings.
dc.description15 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0203391
dc.identifierhttp://arxiv.org/abs/cond-mat/0203391
dc.identifierJ. Phys. A, vol.36, 1299 (2003)
dc.identifierdoi:10.1088/0305-4470/36/5/308
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/19049
dc.subjectMesoscale and Nanoscale Physics
dc.titleQuasibound states at thresholds in multichannel impurity scattering
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