A two-particle, four-mode interferometer for atoms
Quantum Physics
2017-11-01 v2 Quantum Gases
Abstract
We present a free-space interferometer to observe two-particle interference of a pair of atoms with entangled momenta. The source of atom pairs is a Bose--Einstein condensate subject to a dynamical instability, and the interferometer is realized using Bragg diffraction on optical lattices, in the spirit of our recent Hong--Ou--Mandel experiment. We report an observation consistent with an entangled state at the input of the interferometer. We explain how our current setup can be extended to enable a test of a Bell inequality on momentum observables.
Cite
@article{arxiv.1707.01279,
title = {A two-particle, four-mode interferometer for atoms},
author = {Pierre Dussarrat and Maxime Perrier and Almazbek Imanaliev and Raphael Lopes and Alain Aspect and Marc Cheneau and Denis Boiron and Christoph Westbrook},
journal= {arXiv preprint arXiv:1707.01279},
year = {2017}
}