Three-dimensional character of atom-chip-based rf-dressed potentials
Abstract
We experimentally investigate the properties of radio-frequency-dressed potentials for Bose-Einstein condensates on atom chips. The three-dimensional potential forms a connected pair of parallel waveguides. We show that rf-dressed potentials are robust against the effect of small magnetic-field variations on the trap potential. Long-lived dipole oscillations of condensates induced in the rf-dressed potentials can be tuned to a remarkably low damping rate. We study a beam-splitter for Bose-Einstein condensates and show that a propagating condensate can be dynamically split in two vertically separated parts and guided along two paths. The effect of gravity on the potential can be tuned and compensated for using a rf-field gradient.
Keywords
Cite
@article{arxiv.0802.0362,
title = {Three-dimensional character of atom-chip-based rf-dressed potentials},
author = {J. J. P. van Es and S. Whitlock and T. Fernholz and A. H. van Amerongen and N. J. van Druten},
journal= {arXiv preprint arXiv:0802.0362},
year = {2010}
}
Comments
9 pages, 7 figures