Noise-enhanced synchronization of homoclinic chaos in a CO2 laser
Anno: 2003
Autori: Zhou C.S., Kurths J., Allaria E., Boccaletti S., Meucci R., Arecchi F.T.
Affiliazione autori: Institute of Physics, University of Potsdam, Postfach 601553, 14415 Potsdam, Germany;
Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Florence, Firenze, Italy
Abstract: Many chaotic oscillators have rather coherent phase dynamics but strong fluctuation in the amplitudes. Conversely, homoclinic chaos is characterized by quite regular spikes but strong fluctuation in their time intervals. We study the effects of noise on the synchronization of homoclinic chaos to a weak periodic signal and demonstrate numerically and experimentally in a CO2 laser system that noise enhances synchronization of homoclinic chaos. The system exhibits both conventional resonance versus driving frequency and stochastic resonance with respect to noise intensity.
Giornale/Rivista: PHYSICAL REVIEW E
Volume: 67 (1) Da Pagina: 015205-1 A: 015205-4
Parole chiavi: Stochastic resonance; Phase synchronization; Shilnikov chaos; Coherence; SystemsDOI: 10.1103/PhysRevE.67.015205Citazioni: 58dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui