Implementation of multipartite unitary operations with limited resources

Dominic W. Berry*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)
    1 Downloads (Pure)


    A general method for implementing multipartite unitary operations that are close to the identity using a small amount of entanglement and classical communication is presented. For cases where methods were previously known, our approach requires less entanglement. In addition, it is shown that, via compression, the average communication required from all parties except one may be reduced to the same as the entanglement. This improves upon previous methods which required a large amount of communication that did not scale down with the strength of the interaction.

    Original languageEnglish
    Article number032349
    Pages (from-to)1-8
    Number of pages8
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Issue number3
    Publication statusPublished - 30 Mar 2007

    Bibliographical note

    Copyright 2007 by The American Physical Society. Reprinted from Physical review A. Atomic, molecular, and optical physics.


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