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arXiv:1608.02421 · Physical Review A

Efficient entanglement criteria for discrete, continuous, and hybrid variables

Manuel Gessner, Luca Pezzè, Augusto Smerzi

Published Aug 1, 2016• 75 citations
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Abstract

We develop 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.

DOI
10.1103/physreva.94.020101

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