Getting Something Out of Nothing

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dc.creatorLo, Hoi-Kwong
dc.date2005-03-01
dc.date.accessioned2026-07-07T06:26:39Z
dc.date.available2026-07-07T06:26:39Z
dc.descriptionWe study quantum key distribution with standard weak coherent states and show, rather counter-intuitively, that the detection events originated from vacua can contribute to secure key generation rate, over and above the best prior art result. Our proof is based on a communication complexity/quantum memory argument.
dc.description4 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0503004
dc.identifierhttp://arxiv.org/abs/quant-ph/0503004
dc.identifierQuantum Information and Computation Vol 5, No. 4&5 (2005) 413-418.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97174
dc.subjectQuantum Physics
dc.titleGetting Something Out of Nothing
dc.typetext

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