A two-particle, four-mode interferometer for atoms

Autor: Dussarrat, Pierre, Perrier, Maxime, Imanaliev, Almazbek, Lopes, Raphael, Aspect, Alain, Cheneau, Marc, Boiron, Denis, Westbrook, Christoph
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. Lett. 119, 173202 (2017)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevLett.119.173202
Popis: 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.
Databáze: arXiv