Commutator Relations Reveal Solvable Structures in Unambiguous State Discrimination

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dc.creatorKleinmann, M.
dc.creatorKampermann, H.
dc.creatorRaynal, Ph.
dc.creatorBruss, D.
dc.date2007-05-23
dc.date2007-05-31
dc.date.accessioned2026-07-07T08:24:33Z
dc.date.available2026-07-07T08:24:33Z
dc.descriptionWe present a criterion, based on three commutator relations, that allows to decide whether two self-adjoint matrices with non-overlapping support are simultaneously unitarily similar to quasidiagonal matrices, i.e., whether they can be simultaneously brought into a diagonal structure with 2x2-dimensional blocks. Application of this criterion to unambiguous state discrimination provides a systematic test whether the given problem is reducible to a solvable structure. As an example, we discuss unambiguous state comparison.
dc.description5 pages, discussion of related work added
dc.identifierhttps://arxiv.org/abs/0705.3391
dc.identifierhttp://arxiv.org/abs/0705.3391
dc.identifierJ. Phys. A: Math. Theor. 40 (2007) F871-F878
dc.identifierdoi:10.1088/1751-8113/40/36/F04
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/136376
dc.subjectQuantum Physics
dc.titleCommutator Relations Reveal Solvable Structures in Unambiguous State Discrimination
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