Entangling macroscopic light states by delocalized photon addition

• URL: http://arxiv.org/abs/1811.10466v2
• Date: Thu, 27 Feb 2025 16:05:36 GMT
• Title: Entangling macroscopic light states by delocalized photon addition
• Authors: Nicola Biagi, Luca S. Costanzo, Marco Bellini, Alessandro Zavatta,
• Abstract summary: We show that one can preserve a high degree of entanglement even between macroscopically populated modes.<n>Discorrelation, a new joint statistical property of multimode quantum states, is also experimentally demonstrated here for the first time.
• Score: 41.94295877935867
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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