Elastic scattering loss of atoms from colliding Bose-Einstein condensate wavepackets
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
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. We develop a slowly varying envelope technique that includes the effects of this loss on the condensate dynamics described by the Gross-Pitaevski equation. 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.
Keywords
Cite
@article{arxiv.cond-mat/0005021,
title = {Elastic scattering loss of atoms from colliding Bose-Einstein condensate wavepackets},
author = {Y. B. Band and M. Trippenbach and J. P. Burke and P. S. Julienne},
journal= {arXiv preprint arXiv:cond-mat/0005021},
year = {2009}
}
Comments
Phys. Rev. Lett, in press