Thermal counting statistics in an atomic two-mode squeezed vacuum state
Maxime Perrier, Ziyad Amodjee, Pierre Dussarrat, Alexandre Dareau, Alain Aspect, Marc Cheneau, Denis Boiron, Christoph I. Westbrook
SciPost Phys. 7, 002 (2019) · published 3 July 2019
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.
Cited by 2
Lewis-Swan et al., Atomic twin beams and violation of a motional-state Bell inequality from a phase-fluctuating quasicondensate source
Phys. Rev. A 101, 043615 (2020) [Crossref]
Cayla et al., Hanbury Brown and Twiss Bunching of Phonons and of the Quantum Depletion in an Interacting Bose Gas
Phys. Rev. Lett. 125, 165301 (2020) [Crossref]
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- 1 Maxime Perrier,
- 1 Ziyad Amodjee,
- 1 Pierre Dussarrat,
- 1 Alexandre Dareau,
- 1 Alain Aspect,
- 1 Marc Cheneau,
- 1 Denis Boiron,
- 1 Christoph Westbrook