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Phys Rev Lett. 2002 Jul 8;89(2):020401. Epub 2002 Jun 24.

Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates.

Author information

1
Department of Physics, MIT-Harvard Center for Ultracold Atoms, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

Abstract

By colliding two Bose-Einstein condensates, we have observed strong bosonic stimulation of the elastic scattering process. When a weak input beam was applied as a seed, it was amplified by a factor of 20. This large gain atomic four-wave mixing resulted in the generation of two macroscopically occupied pair-correlated atomic beams.

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