TY - JOUR
T1 - Amplification of weak signals and stochastic resonance via on-off intermittency with symmetry breaking
AU - Zhou, Changsong
AU - Lai, C. H.
N1 - This work was supported in part by Research Grant No. RP960689 at the National University of Singapore. Dr. Zho is supported by NSTB.
Publisher Copyright:
© 1999 The American Physical Society
PY - 1999/10
Y1 - 1999/10
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33646981232&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.60.3928
DO - 10.1103/PhysRevE.60.3928
M3 - Journal article
AN - SCOPUS:33646981232
SN - 1063-651X
VL - 60
SP - 3928
EP - 3935
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
IS - 4
ER -