Crisis and enhancement of chaotic scattering

Ying-Cheng Lai, Celso Grebogi

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Chaotic scattering is characterized by the existence of nonattracting chaotic invariant sets in phase space. There can be several chaotic invariant sets coexisting in phase space when a system parameter value is below some critical value. As the parameter changes through the critical value, stable and unstable foliations of these chaotic invariant sets, which are fractal sets, can become tangent and then cross each other. The first tangency, which provides the linking between chaotic invariant sets, is a crisis in chaotic scattering. Above the crisis, there is an infinite number of such tangencies which keep occurring until the last tangency, above which the stable and unstable foliations cross transversely. As a consequence of this, the fractal dimension of the set of singularities in the scattering function increases in the parameter range determined by the first and the last tangencies. This leads to a proliferation of singularities in the scattering function and, consequently, to an enhancement of chaotic scattering. The phenomenon is investigated by using both simple one-dimensional models and a two-dimensional physical scattering system.

Original languageEnglish (US)
Pages (from-to)3761-3770
Number of pages10
JournalPhysical Review E
Volume49
Issue number5
DOIs
StatePublished - 1994
Externally publishedYes

Fingerprint

Enhancement
Scattering
Invariant Set
augmentation
scattering functions
scattering
fractals
Foliation
Critical value
tangents
Phase Space
Unstable
Singularity
Fractal Set
One-dimensional Model
Crisis
Proliferation
Fractal Dimension
Tangent line
Linking

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

Crisis and enhancement of chaotic scattering. / Lai, Ying-Cheng; Grebogi, Celso.

In: Physical Review E, Vol. 49, No. 5, 1994, p. 3761-3770.

Research output: Contribution to journalArticle

Lai, Ying-Cheng ; Grebogi, Celso. / Crisis and enhancement of chaotic scattering. In: Physical Review E. 1994 ; Vol. 49, No. 5. pp. 3761-3770.
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