Resonances in a trapped 3D Bose-Einstein condensate under periodically varying atomic scattering length
Other Condensed Matter
2009-11-10 v1 Soft Condensed Matter
Abstract
Nonlinear oscillations of a 3D radial symmetric Bose-Einstein condensate under periodic variation in time of the atomic scattering length have been studied analytically and numerically. The time-dependent variational approach is used for the analysis of the characteristics of nonlinear resonances in the oscillations of the condensate. The bistability in oscillations of the BEC width is invistigated. The dependence of the BEC collapse threshold on the drive amplitude and parameters of the condensate and trap is found. Predictions of the theory are confirmed by numerical simulations of the full Gross-Pitaevski equation.
Keywords
Cite
@article{arxiv.cond-mat/0405671,
title = {Resonances in a trapped 3D Bose-Einstein condensate under periodically varying atomic scattering length},
author = {Fatkhulla Kh. Abdullaev and Ravil M. Galimzyanov and Marijana Brtka and Roberto A. Kraenkel},
journal= {arXiv preprint arXiv:cond-mat/0405671},
year = {2009}
}
Comments
17 pages, 10 figures, submitted to Journal of Physics B