2000/06/15 by Michał Horodecki, Michal Horodecki, Paweł Horodecki +2 · 3 citations
Computer Science · Physics and Astronomy · #Basis (linear algebra) #Bloch sphere #Linear map #Product (mathematics) #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Qubit #quant-ph
paper · pdf · doi:10.1016/s0375-9601(01)00142-6
RevTeX, 7 pages
arxiv created 2000/06/15 · openalex publication_date 2001/05/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 providing of the maps on the basis of unextendable product bases is provided. The three qubit state problem is reformulated in the form suggesting possibility of explicite characterisation of all maps needed for separability condition.