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Renormalization-group study of a hybrid driven diffusive system
Physical Review E (1994)
  • K. E. Bassler, Virginia Polytechnic Institute and State University
  • Beate Schmittmann, Virginia Polytechnic Institute and State University

We consider a d-dimensional stochastic lattice gas of interacting particles, diffusing under the influence of a short-ranged, attractive Ising Hamiltonian and a ‘‘hybrid’’ external field which is a superposition of a uniform and an annealed random drive, acting in orthogonal subspaces of dimensions one and m, respectively. Driven into a nonequilibrium steady state, the half-filled system phase segregates via a continuous transition at a field-dependent critical temperature. Using renormalization-group techniques, we show that its critical behavior falls into a new universality class with upper critical dimension dc=5-m, characterized by two distinct anisotropy exponents, which, like all other indices, are computed exactly to all orders in perturbation theory.

Publication Date
May 1, 1994
Publisher Statement
Copyright 1994 American Physical Society. Posted with permission.
Citation Information
K. E. Bassler and Beate Schmittmann. "Renormalization-group study of a hybrid driven diffusive system" Physical Review E Vol. 49 (1994)
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