Controlling the amplitude of soliton in a growing Bose-Einstein condensate by means of Feshbach resonance

• 来源期刊: 中国物理B（英文版）
• 关键词: Feshbach resonance Bose-Einstein condensate bright soliton
• 年，卷（期）: 2008,（10）
• 页码范围: 3640-3643
• 页数: 4页
• 语种: 英文

摘要

By using Darboux transformation,this paper studies analytically the nonlinear dynamics of a one-dimensional growing Bose-Einstein condensate(BEC).It is shown that the growing model has an important effect on the amplitude of the soliton in the condensates.In the absence of the growing model,there exhibits the stable alternate bright solitons in the condensates.In the presence of the growing model,the obtained results show that the amplitude of the bright soliton decreases(increases)for the BEC growing coefficient Ω＜0(Ω＞0).Furthermore,we propose experimental protocols to manipulate the amplitude of the bright soliton by varying the scattering length via the Feshbach resonance in the fluture experiment.