超流费米气体中的KdV方程描述  

KdV Description in Fermi-Einstein Condensates

作　　者：索南加[1] 加羊杰[1] 

机构地区：[1]青海师范大学民族师范学院数学系,青海西宁810008

出　　处：《吉林师范大学学报（自然科学版）》2016年第1期64-67,共4页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(11061026)

摘　　要：本文主要研究了超流费米气体中的二维孤立波脉冲.我们运用约化摄动法得到了电子声孤波的Kd V方程,从而得到一孤波解.我们发现孤立子的传播振幅、宽度、以及散射长度a和参量有关.It was studied that superfluid Fermi gas in a two-dimensional solitary wave pulses in the mean-field theory for superfluid gas under limiting conditions unitarity regional and BEC regions in this paper. By using the transverse perturbation method, a （KdV） equation for the nonlinear electron acoustic solitary waves was derived. It was found that the amplitude, width and scattering length of the solitary waves were depended on the parameters.

关 键 词：非线性波 孤立子 孤波方程 

分 类 号：O411.1[理学—理论物理]