A No-Go Theorem for Gaussian Quantum Error Correction

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dc.creatorNiset, Julien
dc.creatorFiurasek, Jaromir
dc.creatorCerf, Nicolas J.
dc.date2008-11-19
dc.date.accessioned2026-07-07T13:01:32Z
dc.date.available2026-07-07T13:01:32Z
dc.descriptionIt is proven that Gaussian operations are of no use for protecting Gaussian states against Gaussian errors in quantum communication protocols. Specifically, we introduce a new quantity characterizing any single-mode Gaussian channel, called entanglement degradation, and show that it cannot decrease via Gaussian encoding and decoding operations only. The strength of this no-go theorem is illustrated with some examples of Gaussian channels.
dc.description4 pages, 2 figures, REVTeX4
dc.identifierhttps://arxiv.org/abs/0811.3128
dc.identifierhttp://arxiv.org/abs/0811.3128
dc.identifierPhys.Rev.Lett.102:120501,2009
dc.identifierdoi:10.1103/PhysRevLett.102.120501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226180
dc.subjectQuantum Physics
dc.titleA No-Go Theorem for Gaussian Quantum Error Correction
dc.typetext

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