Quantum-information processing with noisy cluster states

Mark Tame, Mauro Paternostro, Myungshik Kim, Vlatko Vedral

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

We provide an analysis of basic quantum-information processing protocols under the effect of intrinsic nonidealities in cluster states. These nonidealities are based on the introduction of randomness in the entangling steps that create the cluster state and are motivated by the unavoidable imperfections faced in creating entanglement using condensed-matter systems. Aided by the use of an alternative and very efficient method to construct cluster-state configurations, which relies on the concatenation of fundamental cluster structures, we address quantum-state transfer and various fundamental gate simulations through noisy cluster states. We find that a winning strategy to limit the effects of noise is the management of small clusters processed via just a few measurements. Our study also reinforces recent ideas related to the optical implementation of a one-way quantum computer.
Original languageEnglish
Article number012319
Pages (from-to)012319-1-012319-12
Number of pages12
JournalPhysical Review A
Volume72
Issue number1
Publication statusPublished - Jul 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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