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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Efficient numerical methods for computing ground states of spin-1 Bose-Einstein condensates based on their characterizations
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)≠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)≡B≠0 is a constant, the ground states satisfy the single-mode approximation. When B(x)≡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
نویسندگان
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