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Synchronization in counter-rotating oscillators
Sourav K Bhowmick1, Dibakar Ghosh, Syamal K Dana
1Central Instrumentation, Indian Institute of Chemical Biology (Council of Scientific and Industrial Research), Jadavpur, Kolkata 700032, India.
Abstract:
An oscillatory system can have opposite senses of rotation, clockwise or anticlockwise. We present a general mathematical description of how to obtain counter-rotating oscillators from the definition of a dynamical system. A type of mixed synchronization emerges in counter-rotating oscillators under diffusive scalar coupling when complete synchronization and antisynchronization coexist in different state variables. We present numerical examples of limit cycle van der Pol oscillator and chaotic Rössler and Lorenz systems. Stability conditions of mixed synchronization are analytically obtained for both Rössler and Lorenz systems. Experimental evidences of counter-rotating limit cycle and chaotic oscillators and mixed synchronization are given in electronic circuits.
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