Single file diffusion enhancement in a fluctuating modulated quasi-1D channel

被引：20
作者：
Coupier, G.
Saint Jean, M.
Guthmann, C.
机构：
[1] CNRS, Lab Mat & Syst Complexes, F-75015 Paris, France
[2] Univ Paris 07, F-75015 Paris, France
来源：
EPL | 2007年 / 77卷 / 06期
关键词：
D O I：
10.1209/0295-5075/77/60001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show that the diffusion of a single file of particles moving in a fluctuating modulated quasi-1D channel is enhanced with respect to the one in a bald pipe. This effect, induced by the fluctuations of the modulation, is favoured by the incommensurability between the channel potential modulation and the moving file periodicity. This phenomenon could be of importance in order to optimize the critical current in superconductors, in particular in the case where mobile vortices move in 1D channels designed by patterns of pinning sites.
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页数：6
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