کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9834063 1524906 2005 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The mean field plus approximation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
The mean field plus approximation
چکیده انگلیسی
A new algorithm for approximating the energy and fields between clusters of spatially distinct particles will be described. The case where the particles are magnetic grains will be the focus, but the method is more broadly applicable. This approximation accomplishes the same task as multipole expansions for computing cluster-cluster interactions, but it seems to be both faster and more accurate. It can be viewed as a generalization of a certain mean field approximation and so will be called the mean field plus approximation. The lowest-order version of the approximation will be described first and then a systematic way to improve the approximation will be given. Results of numerical experiments comparing the computational time and accuracy for the mean field approximation, the multipole expansion and the mean field plus approximation will be given.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 292, April 2005, Pages 1-10
نویسندگان
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