Mixed-state entanglement of assistance and the generalized concurrence
نویسندگان
چکیده
منابع مشابه
Mixed State Entanglement of Assistance and the Generalized Concurrence
We consider the maximum bipartite entanglement that can be distilled from a single copy of a multipartite mixed entangled state, where we focus mostly on d × d × n-dimensional tripartite mixed states. We show that this assisted entanglement, when measured in terms of the generalized concurrence (named G-concurrence) is (tightly) bounded by an entanglement monotone, which we call the G-concurren...
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We discuss a kind of generalized concurrence for a class of high dimensional quantum pure states such that the entanglement of formation is a monotonically increasing convex function of the generalized concurrence. An analytical expression of the entanglement of formation for a class of high dimensional quantum mixed states is obtained. PACS numbers: 03.65.Bz, 89.70.+c
متن کاملEntanglement of assistance and multipartite state distillation
John A. Smolin,* Frank Verstraete, and Andreas Winter IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, USA Institute for Quantum Information, Caltech 107-81, Pasadena, California 91125, USA Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str.1, 85748 Garching, Germany Department of Mathematics, University of Bristol, University Walk, Bristol BS8 1TW, United Kingdom Rece...
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In both classical mechanics and quantum mechanics, one can de ne a pure state to be a state that is as completely speci ed as the theory allows. In classical mechanics a pure state might be represented by a point in phase space. In quantum mechanics it is a vector in a complex vector space. Perhaps the most remarkable feature of quantum mechanics, a feature that clearly distinguishes it from cl...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2005
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.72.042318