Canonical Form and Separability of PPT States in 2xMxN Composite Quantum Systems
Abstract
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.
- Publication:
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arXiv e-prints
- Pub Date:
- December 2003
- DOI:
- 10.48550/arXiv.quant-ph/0312031
- arXiv:
- arXiv:quant-ph/0312031
- Bibcode:
- 2003quant.ph.12031W
- Keywords:
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- Quantum Physics
- E-Print:
- 11 pages, Latex