Mixed-lag synchronization in coupled counter-rotating oscillators

We report mixed lag synchronization in coupled counter-rotating oscillators. The trajectories of counter-rotating oscillators has opposite directions of rotation in uncoupled state. Under diffusive coupling via a scalar variable, a mixed lag synchronization emerges when a parameter mismatch is induced in two counter-rotating oscillators. In the state of mixed lag synchronization, one pair of state variables achieve synchronization shifted in time while another pair of state variables are in antisynchronization, however, they are too shifted by the same time. Numerical example of the paradigmatic R{\"o}ssler oscillator is presented and supported by electronic experiment.

Sourav K. Bhowmick, Dibakar Ghosh, Syamal K. Dana · 2013