Band, Y.
, Trippenbach, M.
, Burke, J.
and Julienne, P.
(2000),
Elastic Scattering Loss of Atoms from Colliding Bose-Einstein Condensate Wave Packets, Physical Review Letters
(Accessed September 29, 2023)
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Elastic Scattering Loss of Atoms from Colliding Bose-Einstein Condensate Wave Packets
Published
Author(s)
Y B. Band, M Trippenbach, ,
Abstract
Bragg diffraction of atoms by light waves has been used to create high momentum components in a Bose-Einstein condensate. Collisions between atoms from two distinct momentum wavepackets cause elastic scattering that can remove a significant fraction of atoms from the wavepackets and cause the formation of a spherical shell of scattered atoms. This process can not be described by the Gross-Pitaevskii equation. We develop a slowly varying envelope technique for including the effects of this mechanism into the condensate dynamics. Three-dimensional numerical calculations are presented for two experimental situations: passage of a moving daughter condensate through a non-moving parent condensate, and four-wave mixing of matter waves.Citation
Physical Review Letters
Volume
84
Issue
No. 24
Pub Type
Journals
Keywords
Bose-Einstein condensation, elastic scattering, mean-field effects, nonlinear dynamics
Citation
Created May 31, 2000, Updated October 12, 2021