Schemes for loading a Bose-Einstein condensate into a two-dimensional dipole trap
凝聚态物理
2008-03-21 v1
摘要
We propose two loading mechanisms of a degenerate Bose gas into a surface trap. This trap relies on the dipole potential produced by two evanescent optical waves far detuned from the atomic resonance, yielding a strongly anisotropic trap with typical frequencies 40 Hz x 65 Hz x 30 kHz. We present numerical simulations based on the time-dependent Gross-Pitaevskii equation of the transfer process from a conventional magnetic trap into the surface trap. We show that, despite a large discrepancy between the oscillation frequencies along one direction in the initial and final traps, a loading time of a few tens of milliseconds would lead to an adiabatic transfer. Preliminary experimental results are presented.
引用
@article{arxiv.cond-mat/0304650,
title = {Schemes for loading a Bose-Einstein condensate into a two-dimensional dipole trap},
author = {Yves Colombe and Demascoth Kadio and Maxim Olshanii and Brigitte Mercier and Vincent Lorent and Helene Perrin},
journal= {arXiv preprint arXiv:cond-mat/0304650},
year = {2008}
}