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arXiv · 1811.10466

Entangling macroscopic light states by delocalized photon addition

Nicola Biagi·Luca S. Costanzo·Marco Bellini·Alessandro Zavatta
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Abstract

We present the experimental generation of tunable entanglement between distinct field modes by the delocalized addition of a single photon. We show that one can preserve a high degree of entanglement even between macroscopically populated modes and illustrate this concept by adding a single photon to two modes containing identical coherent states of growing amplitude. Discorrelation, a new joint statistical property of multimode quantum states, is also experimentally demonstrated here for the first time.

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Nicola Biagi, Luca S. Costanzo, Marco Bellini, Alessandro Zavatta. 2018-11-26. Entangling macroscopic light states by delocalized photon addition. https://doi.org/10.1103/physrevlett.124.033604

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