کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
975990 933070 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Brownian motors: Joint effect of non-Gaussian noise and time asymmetric forcing
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Brownian motors: Joint effect of non-Gaussian noise and time asymmetric forcing
چکیده انگلیسی
Previous works have shown that time asymmetric forcing on the one hand, as well as non-Gaussian noises on the other, can separately enhance the efficiency and current of a Brownian motor. Here, we study the result of subjecting a Brownian motor to both effects simultaneously. Our results have been compared with those obtained for the Gaussian white noise regime in the adiabatic limit. We find that, although the inclusion of the time asymmetry parameter increases the efficiency value up to a certain extent, for the present case this increase is much less appreciable than in the white noise case. We also present a comparative study of the transport coherence in the context of colored noise. Though the efficiency in some cases becomes higher for the non-Gaussian case, the Péclet number is always higher in the Gaussian colored noise case than in the white noise as well as non-Gaussian colored noise cases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 389, Issue 24, 15 December 2010, Pages 5563-5572
نویسندگان
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