1.
Phys Rev Lett
; 126(8): 083603, 2021 Feb 26.
Article
in English
| MEDLINE
| ID: mdl-33709745
ABSTRACT
We demonstrate a source for correlated pairs of atoms characterized by two opposite momenta and two spatial modes forming a Bell state only involving external degrees of freedom. We characterize the state of the emitted atom beams by observing strong number squeezing up to -10 dB in the correlated two-particle modes of emission. We furthermore demonstrate genuine two-particle interference in the normalized second-order correlation function g^{(2)} relative to the emitted atoms.