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arXiv · 1103.2779

Detecting entanglement in spatial interference

Clemens Gneiting·Klaus Hornberger
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Abstract

We discuss an experimentally amenable class of two-particle states of motion giving rise to nonlocal spatial interference under position measurements. Using the concept of modular variables, we derive a separability criterion which is violated by these non-Gaussian states. While we focus on the free motion of material particles, the presented results are valid for any pair of canonically conjugate continuous variable observables and should apply to a variety of bipartite interference phenomena.

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Clemens Gneiting, Klaus Hornberger. 2011-07-25. Detecting entanglement in spatial interference. https://doi.org/10.1103/physrevlett.106.210501

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