Another dual formulation of the separability problem
量子物理
2007-05-23 v1
摘要
We show how the separability problem is dual to that of decomposing any given matrix into a conic combination of rank-one partial isometries, thus offering a duality approach different to the positive maps characterization problem. Several inmediate consequences are analyzed: (i) a sufficient criterion for separability for bipartite quantum systems, (ii) a complete solution to the separability problem for pure states also of bipartite systems independent of the classical Schmidt decomposition method and (iii) a natural generalization of these results to multipartite systems.
引用
@article{arxiv.quant-ph/0509124,
title = {Another dual formulation of the separability problem},
author = {D. Salgado and J. L. Sanchez-Gomez and M. Ferrero},
journal= {arXiv preprint arXiv:quant-ph/0509124},
year = {2007}
}
备注
12 pages, no figures