Classical diffusion in random fields with long-range correlations
Z S Gevorkian; Y E Lozovik; Z S Gevorkian; Inst. of Radiophys. & Electron., Ashtarak, Armenia, USSR; Y E Lozovik; Inst. of Radiophys. & Electron., Ashtarak, Armenia, USSR
Журнал:
Journal of Physics A: Mathematical and General
Дата:
1987-07-11
Аннотация:
The effect of long-range random static fields on classical diffusion is investigated. It is shown that the long-range component of random fields leads to the appearance of a new (compared to the white noise case) fixed point in the renormalisation group equations. The critical exponents and oscillating corrections corresponding to the new fixed point are calculated.
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