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arXiv · quant-ph/0608080

Multipartite purification protocols: upper and optimal bounds

Alastair Kay·Jiannis K. Pachos
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Abstract

A method for producing an upper bound for all multipartite purification protocols is devised, based on knowing the optimal protocol for purifying bipartite states. When applied to a range of noise models, both local and correlated, the optimality of certain protocols can be demonstrated for a variety of graph and valence bond states.

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Alastair Kay, Jiannis K. Pachos. 2007-06-08. Multipartite purification protocols: upper and optimal bounds. https://doi.org/10.1103/physreva.75.062307

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