Optimum detection for extracting maximum information from symmetric qubit sets

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dc.creatorMizuno, Jun
dc.creatorFujiwara, Mikio
dc.creatorAkiba, Makoto
dc.creatorKawanishi, Tetsuya
dc.creatorBarnett, Stephen M.
dc.creatorSasaki, Masahide
dc.date2001-06-29
dc.date2001-09-06
dc.date.accessioned2026-07-07T06:02:21Z
dc.date.available2026-07-07T06:02:21Z
dc.descriptionWe demonstrate a class of optimum detection strategies for extracting the maximum information from sets of equiprobable real symmetric qubit states of a single photon. These optimum strategies have been predicted by Sasaki et al. [Phys. Rev. A{\bf 59}, 3325 (1999)]. The peculiar aspect is that the detections with at least three outputs suffice for optimum extraction of information regardless of the number of signal elements. The cases of ternary (or trine), quinary, and septenary polarization signals are studied where a standard von Neumann detection (a projection onto a binary orthogonal basis) fails to access the maximum information. Our experiments demonstrate that it is possible with present technologies to attain about 96% of the theoretical limit.
dc.description10 pages, 11 figures, to be submitted to Phys. Rev. A Converted to REVTeX4 format, and a few other minor modifications according to the comments from PRA referree
dc.identifierhttps://arxiv.org/abs/quant-ph/0106164
dc.identifierhttp://arxiv.org/abs/quant-ph/0106164
dc.identifierPHYSICAL REVIEW A, VOLUME 65, 012315 (2001)
dc.identifierdoi:10.1103/PhysRevA.65.012315
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89573
dc.subjectQuantum Physics
dc.titleOptimum detection for extracting maximum information from symmetric qubit sets
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