Rooted-tree network for optimal non-local gate implementation
arXiv:1506.08411 · doi:10.1007/s11128-016-1344-6
Abstract
A general quantum network for implementing non-local control-unitary gates, between remote parties at minimal entanglement cost, is shown to be a rooted-tree structure. Starting from a five party scenario, we demonstrate the local implementation of simultaneous control-Hermitian and multiparty control-unitary gates in an arbitrary n-party network. Previously established networks are shown to be special cases of this general construct.
arXiv comment10 pages, 4 figures, 9 tables
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