Separability Criterion for all bipartite Gaussian States

Details Separability Criterion for all bipartite Gaussian States Separability Criterion for all bipartite Gaussian States

2001-04-10

arxiv.org/abs/quant-ph/0104050v1

Phys. Rev. Lett. 87, 167904 (2001)

Physics

Quantum Physics

4 pages, 1 figure (.eps)

Scientific paper

10.1103/PhysRevLett.87.167904

We provide a necessary and sufficient condition for separability of Gaussian states of bipartite systems of arbitrarily many modes. The condition provides an operational criterion since it can be checked by simple computation. Moreover, it allows us to find a pure product-state decomposition of any given separable Gaussian state. Our criterion is independent of the one based on partial transposition, and is strictly stronger.

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