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Amplitude death; processing delay; reviving oscillations.

Experimental and numerical observations of reviving oscillations from amplitude death (AD) in two coupled mismatched nonlinear electronic circuits are described. The inclusion of processing delay in the coupling node of the coupled Chua’s oscillators creates a memory of the past state for a finite time duration. Similarly, the fractional order dynamical system has a memory function and remembers the past state of the system. We show that these memory functions are responsible for the reviving and sustained oscillations in the coupled oscillators.

J PALANIVEL¹ K SURESH² D PREMRAJ³ K THAMILMARAN³

1. Department of Electronics and Communication Engineering, Anjalai Ammal Mahalingam Engineering College, Kovilvenni 614 403, India
2. Department of Physics & Astrophysics, University of Delhi, Delhi 110 007, India
3. Centre for Nonlinear Dynamics, School of Physics, Bharathidasan University, Tiruchirappalli 620 024, India

Published

16 September 2019