Wei Cheng, Fang Xu, Hua Li, Gang Wang. Higher dimensional bipartite composite systems with the same density matrix: separable, free entangled, or PPT entangled?. Quantum Information Processing, 13(4):849-862, 2014. [doi]
@article{ChengXLW14,
title = {Higher dimensional bipartite composite systems with the same density matrix: separable, free entangled, or PPT entangled?},
author = {Wei Cheng and Fang Xu and Hua Li and Gang Wang},
year = {2014},
doi = {10.1007/s11128-013-0696-4},
url = {http://dx.doi.org/10.1007/s11128-013-0696-4},
researchr = {https://researchr.org/publication/ChengXLW14},
cites = {0},
citedby = {0},
journal = {Quantum Information Processing},
volume = {13},
number = {4},
pages = {849-862},
}