Lee, Changhan; Kim, Jin Min - In: Physica A: Statistical Mechanics and its Applications 316 (2002) 1, pp. 144-152
Interface pinning–depinning transition in quenched random media is studied by investigating a simple directed polymer … over all slope of the interface and the reduced force, respectively. The coefficient λ of the KPZ nonlinear term is … proportional to −v and it approaches zero as F→Fc. We find that the roughness exponent α=1.00±0.02 in d=1+1 and α=0.92±0.05 in d=2 …
