题名

Stability and Spontaneous Oscillation of Two-Component Matter Wave Solitons with Linear Interconversion

作者

Fei Liu;Lin Yi

关键词
期刊名称

Chinese Journal of Physics

卷期/出版年月

50卷4期(2012 / 08 / 01)

页次

659 - 669

内容语文

英文

英文摘要

By using the variational approach, the evolution characteristics of two coupled matter wave bright solitons with linear interconversion have been analytically investigated when the s-wave scattering length is spatially modulated. The results show that there exist stable solitons and spontaneous oscillation in the condensates under variant conditions. The stable regions are different for symmetric and antisymmetric solitons. The stability of the two stationary states is related to the external trapping potential, the spatially modulated nonlinearity, the number of atoms, and the coupled terms. Moreover, we also find that the spatially modulated nonlinearity influences both the solitons and the spontaneous oscillation of the atoms in the two linearly coupled condensates. The validity of the theoretical predictions is confirmed by numerical simulation of the coupled equations.

主题分类 基礎與應用科學 > 物理