Synchronization of unidirectionally delay-coupled chaotic oscillators with memory
| Autor: | Alexander N. Pisarchik, Roger Chiu-Zarate, V. P. Vera-Ávila, Rider Jaimes-Reátegui, C. E. Castañeda-Hernández, Ricardo Sevilla-Escoboza, G. Huerta-Cuellar |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Bistability General Physics and Astronomy Topology 01 natural sciences Signal Synchronization 010305 fluids & plasmas Coupling (physics) 0103 physical sciences Coherence (signal processing) Condensed Matter::Strongly Correlated Electrons General Materials Science Chaotic oscillators Physical and Theoretical Chemistry 010306 general physics Bifurcation Positive feedback |
| Zdroj: | The European Physical Journal Special Topics. 225:2707-2715 |
| ISSN: | 1951-6401 1951-6355 |
| Popis: | We study synchronization of two chaotic oscillators coupled with time delay in a master-slave configuration and with delayed positive feedback in the slave oscillator which acts as memory. The dynamics of the slave oscillator is analyzed with bifurcation diagrams of the peak value of the system variable with respect to the coupling and feedback strengths and two delay times. For small coupling, when the oscillators’ phases synchronize, memory can induce bistability and stabilize periodic orbits, whereas for stronger coupling it is not possible. The delayed feedback signal impairs synchronization, simultaneously enhancing coherence of the slave oscillator. |
| Databáze: | OpenAIRE |
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