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Unextendible Product Bases and Bound Entanglement
C. H. Bennett, D. P. DiVincenzo, T. Mor +3
An unextendible product basis (UPB) for a multipartite quantum system is an incomplete orthogonal product basis whose complementary subspace contains no product state. We give exam…
Quantum Nonlocality without Entanglement
Charles H. Bennett, David P. DiVincenzo, Christopher A. Fuchs +5
We exhibit an orthogonal set of product states of two three-state particles that nevertheless cannot be reliably distinguished by a pair of separated observers ignorant of which of…
Entanglement of Assistance
David P. DiVincenzo, Christopher A. Fuchs, Hideo Mabuchi +3
The newfound importance of ``entanglement as a resource'' in quantum computation and quantum communication compels us to quantify it in as many distinct ways as possible. Here we e…