# Entropic entanglement criteria for continuous variables.

@article{Walborn2009EntropicEC, title={Entropic entanglement criteria for continuous variables.}, author={Stephen Patrick 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 } }

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.

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