کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
978836 | 933306 | 2008 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Escape by diffusion from a double-well potential across a barrier
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
ریاضیات
فیزیک ریاضی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Escape by diffusion from a double-well potential across a barrier is studied on the basis of the Smoluchowski equation in one dimension. By comparison with exact results for a piecewise parabolic potential a reduced description is constructed in terms of a set of rate equations for the occupation probabilities of the two wells. The rate equations contain memory terms and a source term for the rate of return from the outer space. The reduced description yields a quite accurate approximation for the two example potentials studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 387, Issue 23, 1 October 2008, Pages 5752–5760
Journal: Physica A: Statistical Mechanics and its Applications - Volume 387, Issue 23, 1 October 2008, Pages 5752–5760
نویسندگان
B.U. Felderhof,