Contractions, Matrix Paramatrizations, and Quantum Information

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dc.creatorTseng, M. C.
dc.date2006-10-31
dc.date.accessioned2026-07-07T07:34:04Z
dc.date.available2026-07-07T07:34:04Z
dc.descriptionIn this note, we discuss dilation-theoretic matrix parametrizations of contractions and positive matrices. These parametrizations are then applied to some problems in quantum information theory. First we establish some properties of positive maps, or entanglement witnesses. Two further applications, concerning concrete dilations of completely positive maps, in particular quantum operations, are given.
dc.descriptionSubmitted to J. Math. Phys
dc.identifierhttps://arxiv.org/abs/quant-ph/0610259
dc.identifierhttp://arxiv.org/abs/quant-ph/0610259
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/119681
dc.subjectQuantum Physics
dc.titleContractions, Matrix Paramatrizations, and Quantum Information
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