Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Elastic Scattering Loss of Atoms from Colliding Bose-Einstein Condensate Wave Packets



Y B. Band, M Trippenbach, J P. Burke, Paul S. Julienne


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.
Physical Review Letters
No. 24


Bose-Einstein condensation, elastic scattering, mean-field effects, nonlinear dynamics


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 May 30, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 31, 2000, Updated October 12, 2021