On Weyl-covariant channels

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dc.creatorFukuda, M.
dc.creatorHolevo, A. S.
dc.date2005-10-19
dc.date2006-11-15
dc.date.accessioned2026-07-07T06:48:46Z
dc.date.available2026-07-07T06:48:46Z
dc.descriptionFormalism of discrete noncommutative Fourier transform is developed and applied to the study of Weyl-covariant channels. We then extend a result in quant-ph/0509126 concerning a bound of the maximal output 2-norm of a Weyl-covariant channel. A class of channels which attain the bound is introduced, for which the multiplicativity of the maximal output 2-norm is proven. Complementary channels are described which share the multiplicativity properties with the Weyl-covariant channels.
dc.description14 pages, 1 figure, some errors were corrected
dc.identifierhttps://arxiv.org/abs/quant-ph/0510148
dc.identifierhttp://arxiv.org/abs/quant-ph/0510148
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104134
dc.subjectQuantum Physics
dc.titleOn Weyl-covariant channels
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