On PPT States in KxMxN Composite Quantum Systems

Xiao-Hong Wang, Shao-Ming Fei, Zhi-Xi Wang +1

We study the general representations of positive partial transpose (PPT) states in ${\mathcal{C}}^K\otimes {\mathcal{C}}^M\otimes {\mathcal{C}}^N$. For the PPT states with rank-$N$ a canonical…