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Implementation of multipartite unitary operations with limited resources

Dominic W. Berry
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Abstract

A general method for implementing weakly entangling multipartite unitary operations using a small amount of entanglement and classical communication is presented. For the simple Hamiltonian σ_z\otimesσ_z this method requires less entanglement than previously known methods. In addition, compression of multiple operations is applied to reduce the average communication required.

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Dominic W. Berry. 2006-08-20. Implementation of multipartite unitary operations with limited resources. https://doi.org/10.1103/physreva.75.032349

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