Telecloning and multiuser quantum channels for continuous variables

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dc.creatorvan Loock, P.
dc.creatorBraunstein, Samuel L.
dc.date2000-12-13
dc.date.accessioned2026-07-07T06:01:21Z
dc.date.available2026-07-07T06:01:21Z
dc.descriptionWe propose entangled (M+1)-mode quantum states as a multiuser quantum channel for continuous-variable communication. Arbitrary quantum states can be sent via this channel simultaneously to M remote and separated locations with equal minimum excess noise in each output mode. For a set of coherent-state inputs, the channel realizes optimum symmetric 1-to-M cloning at a distance (``telecloning''). It also provides the optimal cloning of coherent states without the need of amplifying the state of interest. The generation of the multiuser quantum channel requires no more than two 10\log_{10}[(\sqrt{M}-1)/(\sqrt{M}+1)] dB squeezed states and M beam splitters.
dc.description5 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0012063
dc.identifierhttp://arxiv.org/abs/quant-ph/0012063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89229
dc.subjectQuantum Physics
dc.titleTelecloning and multiuser quantum channels for continuous variables
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