2000/05/08 by Changsong Zhou, C. -H. Lai
Physics and Astronomy · #nlin.CD
published as Physical Review E, Vol 60, No. 4, pp. 3928-3935 (1999) · 6 pages, 11 figures
arxiv created 2000/05/08 · arxiv updated 2009/11/30
Nonlinear dynamical systems possessing reflection symmetry have an invariant subspace in the phase space. The dynamics within the invariant subspace can be random or chaotic. As a system parameter changes, the motion transverse to the invariant subspace can lose stability, leading to on-off intermittency. Under certain conditions, the bursting behavior is symmetry-breaking. We demonstrate the possibility of observing multiplicative noise(chaos)-induced amplification of weak signal and stochastic resonance via on-off intermittency with symmetry breaking in a general class of symmetrical systems. Differences of this mechanism of stochastic resonance to that in noisy bistable or threshold systems are discussed