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Canonical Form and Separability of PPT States in C 2 ⊗ C 2 ⊗ C 2 ⊗ C N Composite Quantum Systems

Shao-Ming Fei, Xiu-Hong Gao, Xiaohong Wang, Zhi‐Xi Wang, Ke Wu

Published Jan 1, 2003• 1 citation
OpenAlex

Abstract

We give a canonical form of PPT states in C 2 ⊗C 2 ⊗C 2 ⊗C N with rank=N. From this canonical form a necessary separable condition for these states is presented.

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