Entanglement and collective quantum operations

A. Chefles, C.R. Gilson, S.M. Barnett

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We show how shared entanglement, together with classical communication and local quantum operations, can be used to perform an arbitrary collective quantum operation upon N spatially-separated qubits. A simple teleportation-based protocol for achieving this, which requires 2(N-1) ebits of shared, bipartite entanglement and 4(N-1) classical bits, is proposed. In terms of the total required entanglement, this protocol is shown to be optimal for even N in both the asymptotic limit and for 'one-shot' applications.
Original languageEnglish
Pages (from-to)10-14
Number of pages4
JournalPhysics Letters A
Volume273
Issue number1
DOIs
Publication statusPublished - 14 Aug 2000

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Keywords

  • quantum operations
  • entanglement
  • quantum physics

Cite this

Chefles, A., Gilson, C. R., & Barnett, S. M. (2000). Entanglement and collective quantum operations. Physics Letters A, 273(1), 10-14. https://doi.org/10.1016/S0375-9601(00)00461-8
Chefles, A. ; Gilson, C.R. ; Barnett, S.M. / Entanglement and collective quantum operations. In: Physics Letters A. 2000 ; Vol. 273, No. 1. pp. 10-14.
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Chefles, A, Gilson, CR & Barnett, SM 2000, 'Entanglement and collective quantum operations', Physics Letters A, vol. 273, no. 1, pp. 10-14. https://doi.org/10.1016/S0375-9601(00)00461-8

Entanglement and collective quantum operations. / Chefles, A.; Gilson, C.R.; Barnett, S.M.

In: Physics Letters A, Vol. 273, No. 1, 14.08.2000, p. 10-14.

Research output: Contribution to journalArticle

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