On the realization of Bell observables

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dc.creatorD'Ariano, Giacomo Mauro
dc.creatorPerinotti, Paolo
dc.date2004-06-11
dc.date.accessioned2026-07-07T07:52:55Z
dc.date.available2026-07-07T07:52:55Z
dc.descriptionWe show how Bell observables on a bipartite quantum system can be obtained by local observables via a controlled-unitary transformation. For continuous variables this result holds for the Bell observable corresponding to the non-conventional heterodyne measurement on two radiation modes, which is connected through a 50-50 beam-splitter to two local observables given by single-mode homodyne measurements. A simple scheme for a controlled-unitary transformation of continuous variables is also presented, which needs only two squeezers, a parametric downconverter and two beam splitters.
dc.description9 pages, elsart, 1 figure
dc.identifierhttps://arxiv.org/abs/quant-ph/0406077
dc.identifierhttp://arxiv.org/abs/quant-ph/0406077
dc.identifierPhys. Lett. A, Vol. 329/3 pp 188-192 (2004)
dc.identifierdoi:10.1016/j.physleta.2004.07.006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126059
dc.subjectQuantum Physics
dc.titleOn the realization of Bell observables
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