Non-Perturbative Interactions: A Source of a New Type Noise in Open Catalytic Systems

MK Koleva

Institute of Catalysis, Bulgarian Academy of Sciences 1113 Sofia, Bulgaria
Fax: (359) 2 751 116; e-mail: mkoleva@ic.bas.bg

Bulgarian Chemistry and Industry, 69:119-128 (1998).


Abstract

It has been found out a new physical mechanism that brings about a new type large-scaled fluctuations at macro-level. Thus, the kinetic equations turn from systems of ordinary differential equations into systems of a special type stochastic differential equations. The major property of these equations is that the amplitude of their r.h.s. is bounded. By the use of Wiener-Khinchin theorem it has been found out that the power spectra comprise a monotonically decreasing band which decay law is 1/falpha(f), where alpha(f) tends to unity at the low frequency limit and it monotonically increases up to 3 at the high frequency limit. The low frequency limit does not depend on the lengh of time series.