1999/06/15 by O. Kortlüke, Kortlüke, O., V. N. Kuzovkov +3
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Condensed Matter (cond-mat) #Diffusion and Search Dynamics #FOS: Physical sciences #cond-mat #stochastic dynamics and bifurcation
paper · pdf · doi:10.48550/arxiv.cond-mat/9906215
5 pages, 3 figures
arxiv created 1999/06/15 · openalex publication_date 1999/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We show the existence of internal stochastic resonance in a microscopic stochastic model for the oscillating CO oxidation on single crystal surfaces. This stochastic resonance arises directly from the elementary reaction steps of the system without any external input. The lattice gas model is investigated by means of Monte Carlo simulations. It shows oscillation phenomena and mesoscopic pattern formation. Stochastic resonance arises once homogeneous nucleation in the individual surface phases (reconstructed and non-reconstructed) is added. This nucleation is modelled as a noise process. As a result, synchronization of the kinetic oscillations is obtained. Internal stochastic resonance may thus be an internal regulation mechanism of extreme adaptability.