Local Detection of Entanglement

Details Local Detection of Entanglement Local Detection of Entanglement

2002-06-07

arxiv.org/abs/quant-ph/0206044v3

Eur. Phys. J. D 37, 291 (2006)

Physics

Quantum Physics

6 pages, 4 figures, title changed, published version: to appear in European Physical Journal D

Scientific paper

10.1140/epjd/e2005-00301-8

We construct an explicit model where it can be established if a two mode pure
Gaussian system is entangled or not by acting only on one of the parts that
constitute the system. Measuring the dispersion in momentum and the time
evolution of the dispersion in position of one particle we can tell if
entanglement is present as well as the degree of entanglement of the system.

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