Scaling Separability Criterion: Application To Gaussian States

Details Scaling Separability Criterion: Application To Gaussian States Scaling Separability Criterion: Application To Gaussian States

2009-10-08

arxiv.org/abs/0910.1405v2

J. Russ. Laser Res., 30, 609 (2009)

Physics

Quantum Physics

7 pages, 4 figures

Scientific paper

10.1007/s10946-009-9115-9

We introduce examples of three- and four-mode entangled Gaussian mixed states that are not detected by the scaling and Peres-Horodecki separability criteria. The presented modification of the scaling criterion resolves this problem. Also it is shown that the new criterion reproduces the main features of the scaling pictures for different cases of entangled states, while the previous versions lead to completely different outcomes. This property of the presented scheme is evidence of its higher generality.

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