کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6933136 | 867592 | 2014 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An efficient spectral method for computing dynamics of rotating two-component Bose-Einstein condensates via coordinate transformation
ترجمه فارسی عنوان
یک روش طیفی کارآمد برای محاسبه پویایی دوزهای چرخش مایع بوز-انیشتین از طریق تبدیل مختصات
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
In this paper, we propose an efficient and accurate numerical method for computing the dynamics of rotating two-component Bose-Einstein condensates (BECs) which is described by the coupled Gross-Pitaevskii equations (CGPEs) with an angular momentum rotation term and an external driving field. By introducing rotating Lagrangian coordinates, we eliminate the angular momentum rotation term from the CGPEs, which allows us to develop an efficient numerical method. Our method has spectral accuracy in all spatial dimensions and moreover it can be easily implemented in practice. To examine its performance, we compare our method with those reported in the literature. Numerical results show that to achieve the same accuracy, our method takes much shorter computing time. We also apply our method to study issues such as dynamics of vortex lattices and giant vortices in rotating two-component BECs. Furthermore, we generalize our method to solve the vector Gross-Pitaevskii equations (VGPEs) which is used to study rotating multi-component BECs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 258, 1 February 2014, Pages 538-554
Journal: Journal of Computational Physics - Volume 258, 1 February 2014, Pages 538-554
نویسندگان
Ju Ming, Qinglin Tang, Yanzhi Zhang,