A quantum trampoline for ultra-cold atoms
Atomic Physics
2013-04-18 v1
Abstract
We have observed the interferometric suspension of a free-falling Bose-Einstein condensate periodically submitted to multiple-order diffraction by a vertical 1D standing wave. The various diffracted matter waves recombine coherently, resulting in high contrast interference in the number of atoms detected at constant height. For long suspension times, multiple-wave interference is revealed through a sharpening of the fringes. We use this scheme to measure the acceleration of gravity.
Cite
@article{arxiv.0911.0203,
title = {A quantum trampoline for ultra-cold atoms},
author = {Martin Robert De Saint Vincent and Jean-Philippe Brantut and Christian J. Bordé and Alain Aspect and Thomas Bourdel and Philippe Bouyer},
journal= {arXiv preprint arXiv:0911.0203},
year = {2013}
}