Frozen Disorder in a Driven System
- 21 October 1996
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (17) , 3581-3584
- https://doi.org/10.1103/physrevlett.77.3581
Abstract
We investigate the effects of quenched disorder on the universal properties of a randomly driven Ising lattice gas. The Hamiltonian fixed point of the pure system becomes unstable in the presence of a quenched local bias, giving rise to a new fixed point which controls a novel universality class. We determine the associated scaling forms of correlation and response functions, quoting critical exponents to two-loop order in an expansion around the upper critical dimension d$_c=5$.Comment: 5 pages RevTex. Uses multicol.sty. Accepted for publication in PRKeywords
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