Korteweg de Vries Description of One-Dimensional Superfluid Fermi Gases  

作　　者：XU Yan-Xia DUAN Wen-Shan 徐艳霞;段文山(College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070)

机构地区：[1]College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070

出　　处：《Chinese Physics Letters》2011年第12期199-202,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 10875098;the Natural Science Foundation of Northwest Normal University under Grant No NWNU-KJCXGC-0348.

摘　　要：We study one-dimensional matter-wave pulses in cigar-shaped superfluid Fermi gases,including the linear and nonlinear waves of the system.A Korteweg de Vries(KdV)solitary wave is obtained for the superfluid Fermi gases in the limited case of a BEC regime,a BCS regime and unitarity.The dependences of the propagation velocity,amplitude and the width of the solitary wave on the dimensionless interaction parameter y=1/(kF asc)are given for the limited cases of BEC and unitarity.

关 键 词：FERMI GASES SOLITARY 

分 类 号：O17[理学—数学]