• DOI:10.1103/PhysRevLett.103.160505
Corpus ID: 10523704

Entropic entanglement criteria for continuous variables.

@article{Walborn2009EntropicEC,
  title={Entropic entanglement criteria for continuous variables.},
  author={S. P. Walborn and Bruno G Taketani and Alejo Salles and Fabricio Toscano and R. L. de Matos Filho},
  journal={Physical review letters},
  year={2009},
  volume={103 16},
  pages={
          160505
        }
}

S. P. Walborn, Bruno G Taketani, +2 authors R. L. de Matos Filho

Published 2009

Physics, Medicine

Physical review letters

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We derive several entanglement criteria for bipartite continuous variable quantum systems based on the Shannon entropy. These criteria are more sensitive than those involving only second-order moments, and are equivalent to well-known variance product tests in the case of Gaussian states. Furthermore, they involve only a pair of quadrature measurements, and will thus prove extremely useful in the experimental identification of entanglement.