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Particuliarities of Diffusion in Two‐Dimensional Systems with Random Forces
Author(s) -
Dugaev V. K.,
Tovstyuk K. D.
Publication year - 1990
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221600204
Subject(s) - diffusion , isotropy , generalization , anomalous diffusion , statistical physics , renormalization , anisotropy , random field , field (mathematics) , physics , mathematics , classical mechanics , mathematical analysis , mathematical physics , quantum mechanics , innovation diffusion , statistics , computer science , pure mathematics , knowledge management
The diffusion is investigated of a classical particle in a two‐dimensional system with anisotropic random forces. It is shown that at largest time scales the renormalized diffusion coefficient is isotropic, and the diffusion laws at various time scales are obtained. The renormalization of the mobility in an external field is examined as well. Also the generalization of the results to dimensionalitics d = 2 – ε is presented.