Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Evolution and controlled manipulation of a Bose-Einstein condensate chirped soliton in external potentials

Zong Feng-De Yang Yang Zhang Jie-Fang

Citation:

Evolution and controlled manipulation of a Bose-Einstein condensate chirped soliton in external potentials

Zong Feng-De, Yang Yang, Zhang Jie-Fang
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

  • An extended variational method for describing the dynamics of a Bose-Einstein condensate (BEC) chirped soliton in the presence of periodic and harmonic potentials is developed. It is shown that the BEC chirped soliton dynamics can be deduced via the extended variational method to a set of four coupled nonlinear differential equations. This deduced set of equations agrees remarkably well with full numerical simulations and highlights the dominant physical interactions in the system, namely amplitude, width, chirp, center-position, and center-frequency dynamics. The extended analytic theory provides a useful, accurate, and greatly simplified description of the governing BEC chirped soliton dynamics. It further gives the critical strength ratio of periodic to harmonic potential necessary to support multiple stable lattice sites for the BEC chirped soliton and demonstrates that the BEC chirped soliton can move selectively from one lattice site to another by simply manipulating the potentials. In addition, some interesting results for the experiments and applications of the BEC are also obtained.
Metrics
  • Abstract views:  7776
  • PDF Downloads:  1024
  • Cited By: 0
Publishing process
  • Received Date:  15 August 2008
  • Accepted Date:  21 October 2008
  • Published Online:  05 March 2009

/

返回文章
返回