Superactivation of Bound Entanglement | Zendy

Peter W. Shor | Zendy; John A. Smolin | Zendy; Ashish V. Thapliyal | Zendy

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Superactivation of Bound Entanglement

Author(s) -

Peter W. Shor,

John A. Smolin,

Ashish V. Thapliyal

Publication year - 2003

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.90.107901

Subject(s) - quantum entanglement , upper and lower bounds , superadditivity , bound state , physics , state (computer science) , multipartite entanglement , squashed entanglement , quantum mechanics , theoretical physics , computer science , mathematics , quantum , algorithm , mathematical economics , mathematical analysis

We show that, in a multi-party setting, two non-distillable (bound-entangled)states tensored together can make a distillable state. This is an example oftrue superadditivity of distillable entanglement. We also show that unlockablebound-entangled states cannot be asymptotically unentangled, providing thefirst proof that some states are truly bound-entangled in the sense of beingboth non-distillable and non-separable asymptotically.

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