Adiabatic optical entanglement between electron spins in separate quantum dots

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dc.creatorSaikin, S. K.
dc.creatorEmary, C.
dc.creatorSteel, D. G.
dc.creatorSham, L. J.
dc.date2008-02-11
dc.date2008-12-29
dc.date.accessioned2026-07-07T12:22:19Z
dc.date.available2026-07-07T12:22:19Z
dc.descriptionWe present an adiabatic approach to the design of entangling quantum operations with two electron spins localized in separate InAs/GaAs quantum dots via the Coulomb interaction between optically-excited localized states. Slowly-varying optical pulses minimize the pulse noise and the relaxation of the excited states. An analytic "dressed state" solution gives a clear physical picture of the entangling process, and a numerical solution is used to investigate the error dynamics. For two vertically-stacked quantum dots we show that, for a broad range of dot parameters, a two-spin state with concurrence $C>0.85$ can be obtained by four optical pulses with durations $\sim 0.1 - 1$ ns.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/0802.1527
dc.identifierhttp://arxiv.org/abs/0802.1527
dc.identifierPhys. Rev. B 78, 235314 (2008)
dc.identifierdoi:10.1103/PhysRevB.78.235314
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/213611
dc.subjectMesoscale and Nanoscale Physics
dc.titleAdiabatic optical entanglement between electron spins in separate quantum dots
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