Diffusion and trapping on a one-dimensional lattice.

نویسندگان

  • Giacometti
  • Murthy
چکیده

The properties of a particle diffusing on a one-dimensional lattice where at each site a random barrier and a random trap act simultaneously on the particle are investigated by numerical and analytical techniques. The combined effect of disorder and traps yields a decreasing survival probability with broad distribution (log-normal). Exact enumerations, effective-medium approximation and spectral analysis are employed. This one-dimensional model shows rather rich behaviours which were previously believed to exist only in higher dimensionality. The possibility of a trapping-dominated super universal class is suggested. 05.40+j;05.60.+w;61.43.Hv Typeset using REVTEX 1

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عنوان ژورنال:
  • Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

دوره 53 6  شماره 

صفحات  -

تاریخ انتشار 1996