Open AccessSoliton dynamical behavior of the condensates trapped in a square-well potential
Author(s) -
Bo Zhang,
Wang Deng-Long,
Yanchao She,
Weixi Zhang
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.110501
Subject(s) - soliton , square (algebra) , physics , bose–einstein condensate , amplitude , dynamics (music) , quantum mechanics , classical mechanics , quantum electrodynamics , nonlinear system , mathematics , geometry , acoustics
Using multiple-scale method, we study analytically the soliton dynamical behaviors of the Bose-Einstein condensates trapped in a square-well potential. It is found that the square-well potential has important effects on the soliton dynamics. When the soliton goes into the square-well potential, its movement is accelerated; while it leaves the square-well potential, the soliton is decelerated. With the increase in depth of the square-well potential, the velocity of the soliton increases, and its amplitude becomes larger and its width decreases. This may serve as a reference effect for controlling the dynamical characteristics of the soliton in experiments.