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Thermal counting statistics in an atomic two-mode squeezed vacuum state

Maxime Perrier 1 Ziyad Amodjee 1 Pierre Dussarrat 1 Alexandre Dareau 1 Alain Aspect 1 Marc Cheneau 1 Denis Boiron 1 Christoph I Westbrook 1 
1 Laboratoire Charles Fabry / Optique atomique
LCF - Laboratoire Charles Fabry
Abstract : We measure the population distribution in one of the atomic twin beams generated by four-wave mixing in an optical lattice. Although the produced two-mode squeezed vacuum state is pure, each individual mode is described as a statistical mixture. We confirm the prediction that the particle number follows an exponential distribution when only one spatio-temporal mode is selected. We also show that this distribution accounts well for the contrast of an atomic Hong–Ou–Mandel experiment. These experiments constitute an important validation of our twin beam source in view of a future test of a Bell inequality.
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https://hal-iogs.archives-ouvertes.fr/hal-03457060
Contributor : Christoph I Westbrook Connect in order to contact the contributor
Submitted on : Tuesday, November 30, 2021 - 1:09:00 PM
Last modification on : Saturday, June 25, 2022 - 10:52:49 PM

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IOGS | CNRS | PARISTECH | UNIV-PARIS-SACLAY | GS-ENGINEERING | INSTITUT-SCIENCES-LUMIERE

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Maxime Perrier, Ziyad Amodjee, Pierre Dussarrat, Alexandre Dareau, Alain Aspect, et al.. Thermal counting statistics in an atomic two-mode squeezed vacuum state. SciPost Physics, SciPost Foundation, 2019, 7 (1), ⟨10.21468/SciPostPhys.7.1.002⟩. ⟨hal-03457060⟩

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