Canonical Form and Separability of PPT States in 2x2x2xN Composite Quantum Systems
classification
🪐 quant-ph
keywords
canonicalformotimesstatescompositeconditiongivenecessary
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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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