Stability of continuously pumped atom lasers
Condensed Matter
2009-11-07 v2
Abstract
A multimode model of a continuously pumped atom laser is shown to be unstable below a critical value of the scattering length. Above the critical scattering length, the atom laser reaches a steady state, the stability of which increases with pumping. Below this limit the laser does not reach a steady state. This instability results from the competition between gain and loss for the excited states of the lasing mode. It will determine a fundamental limit for the linewidth of an atom laser beam.
Cite
@article{arxiv.cond-mat/0112372,
title = {Stability of continuously pumped atom lasers},
author = {S. A. Haine and J. J. Hope and N. P. Robins and C. M. Savage},
journal= {arXiv preprint arXiv:cond-mat/0112372},
year = {2009}
}
Comments
4 pages