Parity measurement of one- and two-electron double well systems

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dc.creatorStace, T. M.
dc.creatorBarrett, S. D.
dc.creatorGoan, H. -S.
dc.creatorMilburn, G. J.
dc.date2004-10-07
dc.date.accessioned2026-07-07T03:01:21Z
dc.date.available2026-07-07T03:01:21Z
dc.descriptionWe outline a scheme to accomplish measurements of a solid state double well system (DWS) with both one and two electrons in non-localised bases. We show that, for a single particle, measuring the local charge distribution at the midpoint of a DWS using an SET as a sensitive electrometer amounts to performing a projective measurement in the parity (symmetric/antisymmetric) eigenbasis. For two-electrons in a DWS, a similar configuration of SET results in close-to-projective measurement in the singlet/triplet basis. We analyse the sensitivity of the scheme to asymmetry in the SET position for some experimentally relevant parameter, and show that it is realisable in experiment.
dc.description18 Pages, to appear in PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0410181
dc.identifierhttp://arxiv.org/abs/cond-mat/0410181
dc.identifierPhys. Rev. B 70, 205342 (2004)
dc.identifierdoi:10.1103/PhysRevB.70.205342
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/25027
dc.subjectMesoscale and Nanoscale Physics
dc.subjectQuantum Physics
dc.titleParity measurement of one- and two-electron double well systems
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