Dynamics of Annealed Systems under External Fields: CTRW and the Fractional Fokker-Planck Equations

Details Dynamics of Annealed Systems under External Fields: CTRW and the Fractional Fokker-Planck Equations Dynamics of Annealed Systems under External Fields: CTRW and the Fractional Fokker-Planck Equations

2001-03-22

arxiv.org/abs/cond-mat/0103468v1

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1209/epl/i2001-00503-6

We consider the linear response of a system modelled by continuous-time random walks (CTRW) to an external field pulse of rectangular shape. We calculate the corresponding response function explicitely and show that it exhibits aging, i.e. that it is not translationally invariant in the time-domain. This result differs from that of systems which behave according to fractional Fokker-Planck equations.

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