Gravity-induced Wannier-Stark ladder in an optical lattice
Condensed Matter
2009-10-31 v1
Abstract
We discuss the dynamics of ultracold atoms in an optical potential accelerated by gravity. The positions and widths of the Wannier-Stark ladder of resonances are obtained as metastable states. The metastable Wannier-Bloch states oscillate in a single band with the Bloch period. The width of the resonance gives the rate transition to the continuum.
Cite
@article{arxiv.cond-mat/0009185,
title = {Gravity-induced Wannier-Stark ladder in an optical lattice},
author = {J. Zapata and A. M. Guzman and M. G. Moore and P. Meystre},
journal= {arXiv preprint arXiv:cond-mat/0009185},
year = {2009}
}
Comments
5 pages + 8 eps figures, submitted to Phys. Rev. A