Estimating the Degree of Entanglement of Unknown Gaussian States

Details Estimating the Degree of Entanglement of Unknown Gaussian States Estimating the Degree of Entanglement of Unknown Gaussian States

2006-10-31

arxiv.org/abs/quant-ph/0610263v1

Physics

Quantum Physics

Diploma thesis, September 2003, roughly 90 pages, several figures (some color), put here for reference, (in particular chapter

Scientific paper

We give an introduction to Gaussian states and operations. A discussion of the entanglement properties of bipartite Gaussian states in terms of its covariance matrix follows. It is explained how entanglement can be witnessed using feasible measurements, e.g. homodyne measurements. We find that the outcome of such a measurements cannot only witness but also quantify entanglement.

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