Dispersion management for atomic matter waves
Abstract
We demonstrate the control of the dispersion of matter wave packets utilizing periodic potentials. This is analogous to the technique of dispersion management known in photon optics. Matter wave packets are realized by Bose-Einstein condensates of 87Rb in an optical dipole potential acting as a one-dimensional waveguide. A weak optical lattice is used to control the dispersion relation of the matter waves during the propagation of the wave packets. The dynamics are observed in position space and interpreted using the concept of effective mass. By switching from positive to negative effective mass, the dynamics can be reversed. The breakdown of the approximation of constant, as well as experimental signatures of an infinite effective mass are studied.
Cite
@article{arxiv.cond-mat/0304594,
title = {Dispersion management for atomic matter waves},
author = {B. Eiermann and P. Treutlein and Th. Anker and M. Albiez and M. Taglieber and K. -P. Marzlin and M. K. Oberthaler},
journal= {arXiv preprint arXiv:cond-mat/0304594},
year = {2009}
}
Comments
5 pages, 3 figures