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Canonical Form and Separability of PPT States in 2x2x2xN Composite Quantum Systems

S. M. Fei·X. H. Gao·X. H. Wang·Z. X. Wang·Ke Wu
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Abstract

We give a canonical form of PPT states in ${\cal C}^2 \otimes {\cal C}^2\otimes {\cal C}^2 \otimes {\cal C}^N$ with rank=$N$. From this canonical form a necessary separable condition for these states is presented.

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S. M. Fei, X. H. Gao, X. H. Wang, Z. X. Wang, Ke Wu. 2003-10-23. Canonical Form and Separability of PPT States in 2x2x2xN Composite Quantum Systems. https://doi.org/10.1088/0253-6102%2F40%2F5%2F515

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