Dynamic Scaling of Coupled Nonequilibrium Interfaces

Preprint

15 August 1992

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9208010

Abstract

We propose a simple discrete model to study the nonequilibrium fluctuations of two locally coupled 1+1 dimensional systems (interfaces). Measuring numerically the tilt-dependent velocity we construct a set of stochastic continuum equations describing the fluctuations in the model The scaling predicted by the equations are studied analytically using dynamic renormalization group and compared with simulation results. When the coupling is symmetric, the well known KPZ exponents are recovered. If one of the systems is fluctuating independently, an increase in the roughness exponent is observed for the other one.

Keywords

NONEQUILIBRIUM FLUCTUATIONS
NONEQUILIBRIUM INTERFACES
COUPLED NONEQUILIBRIUM
DYNAMIC SCALING
SIMPLE DISCRETE
STOCHASTIC
EXPONENT

All Related Versions

Version 1, 1992-08-15, ArXiv
Published version: Physical Review A, 46 (6), R2977.

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