Oscillatory decay of a two-component Bose-Einstein condensate
Soft Condensed Matter
2009-11-07 v1
Abstract
We study the decay of a two-component Bose-Einstein condensate with negative effective interaction energy. With a decreasing atom number due to losses, the atom-atom interaction becomes less important and the system undergoes a transition from a bistable Josephson regime to the monostable Rabi regime, displaying oscillations in phase and number. We study the equations of motion and derive an analytical expression for the oscillation amplitude. A quantum trajectory simulation reveals that the classical description fails for low emission rates, as expected from analytical considerations. Observation of the proposed effect will provide evidence for negative effective interaction.
Cite
@article{arxiv.cond-mat/0107568,
title = {Oscillatory decay of a two-component Bose-Einstein condensate},
author = {Sigmund Kohler and Fernando Sols},
journal= {arXiv preprint arXiv:cond-mat/0107568},
year = {2009}
}
Comments
4 pages, 3 figues