Joint measurement of two unsharp observables of a qubit

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dc.creatorYu, Sixia
dc.creatorLiu, Naile
dc.creatorLi, Li
dc.creatorOh, C. H.
dc.date2008-05-12
dc.date2008-09-17
dc.date.accessioned2026-07-07T10:03:09Z
dc.date.available2026-07-07T10:03:09Z
dc.descriptionWe present a single inequality as the necessary and sufficient condition for two unsharp observables of a two-level system to be jointly measurable in a single apparatus and construct explicitly the joint observables. A complementarity inequality arising from the condition of joint measurement, which generalizes Englert's duality inequality, is derived as the trade-off between the unsharpnesses of two jointly measurable observables.
dc.description5 pages 3 figures
dc.identifierhttps://arxiv.org/abs/0805.1538
dc.identifierhttp://arxiv.org/abs/0805.1538
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/169179
dc.subjectQuantum Physics
dc.titleJoint measurement of two unsharp observables of a qubit
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