Fano and Dicke effects and spin polarization in a double Rashba-ring system side coupled to a quantum wire

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dc.creatorApel, V. M.
dc.creatorOrellana, P. A.
dc.creatorPacheco, M.
dc.date2008-03-27
dc.date.accessioned2026-07-07T09:29:06Z
dc.date.available2026-07-07T09:29:06Z
dc.descriptionThe electronic transport in a system of two quantum rings side-coupled to a quantum wire is studied via a single-band tunneling tight-binding Hamiltonian. We derived analytical expressions for the conductance and spin polarization when the rings are threaded by magnetic fluxes with Rashba spin-orbit interaction. We show that by using the Fano and Dicke effects this system can be used as an efficient spin-filter even for small spin orbit interaction and small values of magnetic flux. We compare the spin-dependent polarization of this design and the polarization obtained with one ring side coupled to a quantum ring. As a main result, we find better spin polarization capabilities as compared to the one ring design
dc.description6 pages, 7 figures
dc.identifierhttps://arxiv.org/abs/0803.4014
dc.identifierhttp://arxiv.org/abs/0803.4014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/157665
dc.subjectMesoscale and Nanoscale Physics
dc.titleFano and Dicke effects and spin polarization in a double Rashba-ring system side coupled to a quantum wire
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