The coherence of a squeezed sodium atom laser generated from a Raman output coupler, in which the sodium atoms in Bose-Einstein condensate (BEC) interact with two light beams consisting of a weaker squeezed coherent probe light and a stronger classical coupling light, is investigated. The results show that in the case of a large mean number of BEC atoms and a weaker probe light field, the atom laser is antibunching, and this atom laser is second-order coherent if the number of BEC atoms in traps is large enough.
© 2009 Chinese Optics Letters
Huiyong He and Chunjia Huang, "Coherence of a squeezed sodium atom laser generated from Raman output coupling," Chin. Opt. Lett. 7, 455-457 (2009)