Article Dans Une Revue Physical Review Letters Année : 2025

Quantifying Two-Mode Entanglement of Bosonic Gaussian States from Their Full Counting Statistics

Résumé

We study the entanglement properties of two-mode bosonic Gaussian states based on their multi-mode counting statistics. We exploit the idea that measuring high-order correlations of particle numbers can reveal entanglement without making any assumptions about the coherence of the fields. We show that the two- and four-body number correlations are sufficient to fully characterize the entanglement of two-mode bosonic Gaussian states for which each mode exhibits a thermal distribution. In addition, we derive an entanglement witness based on two-body correlations alone. Our findings are of great importance because it becomes possible to reveal entanglement in a series of recent experiments.

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Dates et versions

hal-05242978 , version 1 (25-11-2025)

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Victor Gondret, Clothilde Lamirault, Rui Dias, Charlie Leprince, Christoph Westbrook, et al.. Quantifying Two-Mode Entanglement of Bosonic Gaussian States from Their Full Counting Statistics. Physical Review Letters, 2025, 135 (10), pp.100201. ⟨10.1103/1y1p-zqhh⟩. ⟨hal-05242978⟩
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