Control of defects and spacelike structures in delayed dynamical systems
Anno: 1997
Autori: Boccaletti S., Maza D., Mancini H., Genesio R., Arecchi F.T.
Affiliazione autori: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Firenze, 50125 Firenze, Italy;
Department of Physics and Applied Mathematics, Universidad de Navarra, Pamplona, Spain;
Department of Sistemi e Informatica, University of Florence, 50139 Florence, Italy
Abstract: In many nonequilibrium dynamical situations delays are crucial in inducing chaotic scenarios. In particular, a delayed feedback in an oscillator can break the regular oscillation into trains mutually uncorrelated in phase, whereby the phase jumps are localized as defects in an extended system. We show that an adaptive control procedure is effective in suppressing these defects and stabilizing the regular oscillations. The analysis of the transient times for achieving control demonstrates that stabilization is obtained within an amplitude turbulent regime, analogous to what is present in spatially distributed systems. The control technique is robust against the presence of large amounts of noise.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 79 (26) Da Pagina: 5246 A: 5249
Parole chiavi: CONTROLLING CHAOS; PARAMETRIC PERTURBATIONS; ADAPTIVE RECOGNITION; STABILIZATION; OSCILLATIONSDOI: 10.1103/PhysRevLett.79.5246Citazioni: 56dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti 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