Kb. Lauritsen et al., NOISY KURAMOTO-SIVASHINSKY EQUATION FOR AN EROSION MODEL, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 54(4), 1996, pp. 3577-3580
We derive the continuum equation for a discrete model for ion sputteri
ng. We follow an approach based on the master equation, and discuss ho
w it can be truncated to a Fokker-Planck equation and mapped to a disc
rete Langevin equation. By taking the continuum limit, we arrive at th
e Kuramoto-Sivashinsky equation with a stochastic noise term.