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

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

2003-12-03

arxiv.org/abs/quant-ph/0312031v1

Int. J. Quant. Inform. 1(2003)337-347

Physics

Quantum Physics

11 pages, Latex

Scientific paper

We investigate the canonical forms of positive partial transposition (PPT)
density matrices in ${\cal C}^2 \otimes {\cal C}^M \otimes {\cal C}^N$
composite quantum systems with rank $N$. A general expression for these PPT
states are explicitly obtained. From this canonical form a sufficient
separability condition is presented.

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