Separability of Mixed States: Necessary and Sufficient Conditions

M Horodecki,P Horodecki,R Horodecki

Physics Letters A（2001）SCI 3区

Institute of Theoretical Physics and Astrophysics

被引用3405|浏览14

摘要

We provide necessary and sufficient conditions for separability of mixed states of n-particle systems. The conditions are formulated in terms of maps which are positive on product states of n−1 particles. The method of construction of the maps on the basis of unextendible product bases is provided. The three-qubit problem is discussed in more details involving Bloch sphere parameters of qubit state.

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关键词

Fault-tolerant Quantum Computation