Quantum effects on curve crossing in a Bose-Einstein condensate
Condensed Matter
2009-11-07 v1
Abstract
Formation of atomic pairs by the dissociation of a molecular condensate or by inelastic collisions in an atomic condensate due to a time-dependent curve crossing process is studied beyond the mean-field approximation. The number of atoms formed by the spontaneous process is described by a Landau-Zener formula multiplied by an exponential amplification factor due to quantum many-body effects. The atomic pairs are formed in an entangled (squeezed) state. The rate of stimulated processes depends on the relative phase of the two fields.
Cite
@article{arxiv.cond-mat/0108372,
title = {Quantum effects on curve crossing in a Bose-Einstein condensate},
author = {V. A. Yurovsky and A. Ben-Reuven and P. S. Julienne},
journal= {arXiv preprint arXiv:cond-mat/0108372},
year = {2009}
}
Comments
LaTeX, 5 pages, uses REVTeX, submitted to Physical Review Letters