Valley interference effects on a donor electron close to a Si/SiO2 interface

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dc.creatorCalderon, M. J.
dc.creatorKoiller, Belita
dc.creatorSarma, S. Das
dc.date2007-12-11
dc.date.accessioned2026-07-07T09:33:04Z
dc.date.available2026-07-07T09:33:04Z
dc.descriptionWe analyze the effects of valley interference on the quantum control and manipulation of an electron bound to a donor close to a Si/SiO2 interface as a function of the valley-orbit coupling at the interface. We find that, for finite valley-orbit coupling, the tunneling times involved in shuttling the electron between the donor and the interface oscillate with the interface/donor distance in much the same way as the exchange coupling oscillates with the interdonor distance. These oscillations disappear when the ground state at the interface is degenerate (corresponding to zero valley-orbit coupling).
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0712.1823
dc.identifierhttp://arxiv.org/abs/0712.1823
dc.identifierPhys. Rev. B 77, 155302 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.155302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/159006
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleValley interference effects on a donor electron close to a Si/SiO2 interface
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