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arXiv · 1608.02421

Efficient entanglement criteria for discrete, continuous, and hybrid variables

Manuel Gessner·Luca Pezzè·Augusto Smerzi
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Abstract

We provide a method to construct entanglement criteria for arbitrary multipartite systems of discrete or continuous variables and hybrid combinations of both. While any set of local operators generates a sufficient condition for entanglement of arbitrary quantum states, a suitable set leads to a necessary and sufficient criterion for pure states. The criteria are readily implementable with existing technology and reveal entanglement that remains undetected by the respective state-of-the-art methods for discrete and continuous variables.

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Manuel Gessner, Luca Pezzè, Augusto Smerzi. 2016-08-08. Efficient entanglement criteria for discrete, continuous, and hybrid variables. https://doi.org/10.1103/physreva.94.020101

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