%0 Journal Article
%T Small Amplitude Solitons in Bose--Einstein Condensates with External Perturbation<br>Small Amplitude Solitons in Bose-Einstein Condensates with External Perturbation
%A WANG Feng-Jiao
%A YAN Xiao-Hong
%A WANG Deng-Long
%A <br>王凤姣
%A 颜晓红
%A 王登龙
%J 中国物理快报
%D 2008
%I 
%X By developing a small amplitude soliton approximation method, we study analytically weak nonlinear excitations in cigar-shaped condensates with repulsive interatomic interaction under consideration of external perturbation potential. It is shown that matter wave solitons may exist and travel over a long distance without attenuation and change in shape by properly adjusting the strength of interatomic interaction to compensate for the effect of external perturbation potential.
%K 02
%K 30
%K 02&prev_q=Mv')">02" target="_blank">Mv')">02
%K 30
%K Mv
%K 03
%K 75
%K Lm
%K 02&prev_q=')"> 02" target="_blank">')"> 02
%K 75
%K Kk<br>玻色-爱因斯坦冷凝物
%K 外部微扰
%K 小振幅孤波
%K 物理学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=272F13CAC55361AB0AD3D40D724D1FA8&yid=67289AFF6305E306&vid=C5154311167311FE&iid=CA4FD0336C81A37A&sid=E158A972A605785F&eid=DF92D298D3FF1E6E&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=21