A Note on Quantum Entanglement and PPT
Shao-Ming Fei and Xianqing Li-Jost
Contact the author: Please use for correspondence this email.
Submission date: 16. Dec. 2008
published in: International journal of quantum information, 7 (2009) 3, p. 587-593
DOI number (of the published article): 10.1142/S0219749909005328
PACS-Numbers: 03.65.Bz, 89.70.+c
Keywords and phrases: ppt, entanglement, separability
Download full preprint: PDF (98 kB)
We study quantum states for which the PPT criterion is both su±cient and necessary for separability. We present a class of 3 x 3 bipartite mixed states and show that these states are separable if and only if they are PPT.