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arXiv · 1904.04135

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

M. Perrier·Z. Amodjee·P. Dussarrat·A. Dareau·A. Aspect·M. Cheneau·D. Boiron·C. I. Westbrook
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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 inequalities.

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M. Perrier, Z. Amodjee, P. Dussarrat, A. Dareau, A. Aspect, M. Cheneau, D. Boiron, C. I. Westbrook. 2019-04-08. Thermal counting statistics in an atomic two-mode squeezed vacuum state. https://doi.org/10.21468/scipostphys.7.1.002

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