A necessary and sufficient criterion for multipartite separable states
Quantum Physics
2009-11-06 v3
Abstract
We present a necessary and sufficient condition for the separability of multipartite quantum states, this criterion also tells us how to write a multipartite separable state as a convex sum of separable pure states. To work out this criterion, we need to solve a set of equations, actually it is easy to solve these quations analytically if the density matrix of the given quantum state has few nonzero eigenvalues.
Cite
@article{arxiv.quant-ph/0006058,
title = {A necessary and sufficient criterion for multipartite separable states},
author = {Shengjun Wu and Xuemei Chen and Yongde Zhang},
journal= {arXiv preprint arXiv:quant-ph/0006058},
year = {2009}
}
Comments
4 pages, Revtex