Confined free-electrons in an applied electric field: Discontinuous electron density

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dc.creatorPleutin, Stephane
dc.date2004-12-22
dc.date.accessioned2026-07-07T03:02:52Z
dc.date.available2026-07-07T03:02:52Z
dc.descriptionWe consider free electrons in rectangular quantum dots, with either hard wall boundary conditions or anharmonic confinement. In both cases, due to finite size effects, a homogeneous electric field applied along one of the rectangular axis is shown to induce abrupt changes in the electron density, parallel and perpendicularly to the field direction: the electron density jumps from one configuration to another. Making use of this property, we propose a purely electrical mechanism to control the magnitude of the effective exchange coupling between two quantum dots. This system has been proposed recently as a quantum gate for quantum computation.
dc.description25 pages, 9 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0412600
dc.identifierhttp://arxiv.org/abs/cond-mat/0412600
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25550
dc.subjectMesoscale and Nanoscale Physics
dc.subjectMaterials Science
dc.titleConfined free-electrons in an applied electric field: Discontinuous electron density
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