2011
DOI: 10.1103/physreve.83.036205
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Controlling birhythmicity in a self-sustained oscillator by time-delayed feedback

Abstract: Time-delayed feedback is a practical method for controlling various nonlinear dynamical systems. We consider its influence on the dynamics of a multicycle van der Pol oscillator that is birhythmic in nature. It has been shown that depending on the strength of delay the bifurcation space can be divided into two subspaces for which the dynamical response of the system is generically distinct. We observe an interesting collapse and revival of birhythmicity with the variation of the delay time. Depending on the pa… Show more

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Cited by 65 publications
(35 citation statements)
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“…Only a few works are reported on the control of birhythmicity. Ghosh et al 17 showed that time delay feedback control, which was originally proposed by Pyragas 18 to control chaos, is able to control birhythmicity as well in a modified birhythmic van der Pol oscillator. However, owing to the presence of time delay in their control scheme, a detailed bifurcation analysis for the controlled system is a difficult task.…”
Section: Introductionmentioning
confidence: 99%
“…Only a few works are reported on the control of birhythmicity. Ghosh et al 17 showed that time delay feedback control, which was originally proposed by Pyragas 18 to control chaos, is able to control birhythmicity as well in a modified birhythmic van der Pol oscillator. However, owing to the presence of time delay in their control scheme, a detailed bifurcation analysis for the controlled system is a difficult task.…”
Section: Introductionmentioning
confidence: 99%
“…Extending van der Pol oscillator model with a nonlinear function of higher order polynomial, Kaiser(15;16;36;37;38;39;17;40) has described bi-rythmicity with the nonlinear equation,…”
Section: Three-cycles Case: Kaiser Bi-rythmicity Modelmentioning
confidence: 99%
“…In the case of self-sustained oscillations, one observes a transition between two stable orbits rather than two points. However, it has been shown that the escape is indeed of the Kramers' type for uncorrelated noise [14,15] even in presence of time delay [16][17][18], and it can be ascribed to the existence of a quasipotential or pseudopotential [19,20]. The quasipotential allows to estimate the energy barriers, and indicates that for most parameters, a single attractor is dominantly stable [14,15], while the other is characterized by a small energy barrier.…”
Section: Introductionmentioning
confidence: 99%