Single file diffusion enhancement in a fluctuating modulated quasi-1d channel
G Coupier, M Saint Jean, C Guthmann - Europhysics Letters, 2007 - iopscience.iop.org
G Coupier, M Saint Jean, C Guthmann
Europhysics Letters, 2007•iopscience.iop.orgWe 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.
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.
Abstract
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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