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

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-02177771
Contributor : Christoph I Westbrook <>
Submitted on : Tuesday, July 9, 2019 - 1:04:21 PM
Last modification on : Wednesday, September 16, 2020 - 5:48:27 PM

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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-02177771⟩

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