Optimal quantum cloning via spin networks

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dc.creatorChen, Qing
dc.creatorCheng, Jianhua
dc.creatorWang, Ke-Lin
dc.creatorDu, Jiangfeng
dc.date2005-10-19
dc.date.accessioned2026-07-07T08:01:55Z
dc.date.available2026-07-07T08:01:55Z
dc.descriptionIn this paper we present an approach to quantum cloning via free dynamical evolution of spin networks. By properly designing the network and the couplings between spins, we show that optimal 1->M phase covariant cloning can be achieved without any external control. Especially, when M is an odd number, the optimal phase-covariant cloning can be achieved without ancillas. Moreover, we demonstrate that the same framework is capable for optimal 1->2 universal cloning.
dc.description4 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/quant-ph/0510147
dc.identifierhttp://arxiv.org/abs/quant-ph/0510147
dc.identifierPhys. Rev. A 74, 034303 (2006)
dc.identifierdoi:10.1103/PhysRevA.74.034303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129070
dc.subjectQuantum Physics
dc.titleOptimal quantum cloning via spin networks
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