Noise-induced intermittency in the quasiperiodic regime of Rayleigh-B�nard convection

Autor:	H. Haucke, Robert E. Ecke
Rok vydání:	1989
Předmět:	Physics Statistical and Nonlinear Physics Context (language use) Multiplicative noise law.invention Nonlinear Sciences::Chaotic Dynamics Quasiperiodicity law Intermittency Quasiperiodic function Attractor Statistical physics Mathematical Physics Noise (radio) Rayleigh–Bénard convection
Zdroj:	Journal of Statistical Physics. 54:1153-1172
ISSN:	1572-9613 0022-4715
DOI:	10.1007/bf01044708
Popis:	Thermal measurements on a converting dilute3He-superfluid4He solution in the quasiperiodic regime show a transition from a mode-locked periodic state to chaotic time dependence via intermittency. The type of intermittency is discussed in the context of standard models of the phenomenon. In a region just below the onset of intermittency, injection of external multiplicative noise with noise amplitude above a certain threshold level induces the chaotic state. This noise-induced transition can be understood to be due to perturbations of a system with a barely stable attractor; the noise causes the system to escape the weakly attracting periodic points. We present a numerical simulation of a 1D map with external noise which explains some aspects of the noise-induced behavior, and a 2D map which has certain features of the intermittency.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0b9201d9cb3d35907c651d61c0614b05 https://doi.org/10.1007/bf01044708 Zobrazit plný text záznamu Full text from SpringerLink