Driven diffusive system: A study on large n limit
Department of Physics and Meteorology, Indian
Institute of Technology, Kharagpur 721 302, India
Revised: 29 May 2000
Published online: 15 October 2000
We study the generalized n component model of a driven diffusive system with annealed random drive in the large n limit. This non-equilibrium model also describes conserved order parameter dynamics of an equilibrium model of ferromagnets with dipolar interaction. In this limit, at zero temperature a saddle point approximation becomes exact. The length scale in the direction transverse to the driving field acquires an additional logarithmic correction in this limit.
PACS: 64.60.Ht – Dynamic critical phenomena / 75.40.Gb – Dynamic properties (dynamic susceptibility, spin waves, spin diffusion, dynamic scaling, etc.)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000