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The Minimum Size of Unextendible Product Bases in the Bipartite Case (and Some Multipartite Cases)

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Abstract

A long-standing open question asks for the minimum number of vectors needed to form an unextendible product basis in a given bipartite or multipartite Hilbert space. A partial solution was found by Alon and Lovász (J. Comb. Theory Ser. A, 95:169–179, 2001), but since then only a few other cases have been solved. We solve all remaining bipartite cases, as well as a large family of multipartite cases.

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Correspondence to Nathaniel Johnston.

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Communicated by A. Winter

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Chen, J., Johnston, N. The Minimum Size of Unextendible Product Bases in the Bipartite Case (and Some Multipartite Cases). Commun. Math. Phys. 333, 351–365 (2015). https://doi.org/10.1007/s00220-014-2186-7

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  • DOI: https://doi.org/10.1007/s00220-014-2186-7

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