کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9867908 | 1530674 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Trapped bright matter-wave solitons in the presence of localized inhomogeneities
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Trapped bright matter-wave solitons in the presence of localized inhomogeneities Trapped bright matter-wave solitons in the presence of localized inhomogeneities](/preview/png/9867908.png)
چکیده انگلیسی
We examine the dynamics of a bright solitary wave in the presence of a repulsive or attractive localized “impurity” in Bose-Einstein condensates (BECs). We study the generation and stability of a pair of steady states in the vicinity of the impurity as the impurity strength is varied. These two new steady states, one stable and one unstable, disappear through a saddle-node bifurcation as the strength of the impurity is decreased. Soliton dynamics is also studied, including cases where the soliton is offset from one of the relevant fixed points. The numerical results are corroborated by theoretical calculations which are in very good agreement with the numerical findings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 345, Issues 1â3, 26 September 2005, Pages 144-153
Journal: Physics Letters A - Volume 345, Issues 1â3, 26 September 2005, Pages 144-153
نویسندگان
G. Herring, P.G. Kevrekidis, R. Carretero-González, B.A. Malomed, D.J. Frantzeskakis, A.R. Bishop,