کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6933424 | 867748 | 2013 | 20 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient numerical methods for computing ground states of spin-1 Bose-Einstein condensates based on their characterizations
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
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چکیده انگلیسی
In this paper, we propose efficient numerical methods for computing ground states of spin-1 Bose-Einstein condensates (BECs) with/without the Ioffe-Pritchard magnetic field B(x). When B(x)â 0, a numerical method is introduced to compute the ground states and it is also applied to study properties of ground states. Numerical results suggest that the densities of mF=±1 components in ground states are identical for any nonzero B(x). In particular, if B(x)â¡Bâ 0 is a constant, the ground states satisfy the single-mode approximation. When B(x)â¡0, efficient and simpler numerical methods are presented to solve the ground states of spin-1 BECs based on their ferromagnetic/antiferromagnetic characterizations. Numerical simulations show that our methods are more efficient than those in the literature. In addition, some conjectures are made from our numerical observations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 253, 15 November 2013, Pages 189-208
Journal: Journal of Computational Physics - Volume 253, 15 November 2013, Pages 189-208
نویسندگان
Weizhu Bao, I-Liang Chern, Yanzhi Zhang,