title: Experimental demonstration of revival of oscillations from death in coupled nonlinear oscillators.
abstract: We experimentally demonstrate that a processing delay, a finite response time, in the coupling can revoke the stability of the stable steady states, thereby facilitating the revival of oscillations in the same parameter space where the coupled oscillators suffered the quenching of oscillation. This phenomenon of reviving of oscillations is demonstrated using two different prototype electronic circuits. Further, the analytical critical curves corroborate that the spread of the parameter space with stable steady state is diminished continuously by increasing the processing delay. Finally, the death state is completely wiped off above a threshold value by switching the stability of the stable steady state to retrieve sustained oscillations in the same parameter space. The underlying dynamical mechanism responsible for the decrease in the spread of the stable steady states and the eventual reviving of oscillation as a function of the processing delay is explained using analytical results.
authors.affiliation: School of Physics, Indian Institute of Science Education and Research, Thiruvananthapuram 695016, India.
authors.forename: D V
authors.initials: DV
authors.lastname: Senthilkumar
authors.affiliation: Department of Physics, Anjalai Ammal-Engineering College, Kovilvenni 614 403, Tamilnadu, India.
authors.forename: K
authors.initials: K
authors.lastname: Suresh
authors.affiliation: Centre for Nonlinear Science and Engineering, School of Electrical and Electronics Engineering, SASTRA University, Thanjavur 613 401, India.
authors.forename: V K
authors.initials: VK
authors.lastname: Chandrasekar
authors.affiliation: School of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zou
authors.affiliation: CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India.
authors.forename: Syamal K
authors.initials: SK
authors.lastname: Dana
authors.affiliation: Centre for Nonlinear Dynamics, Bharathidasan University, Trichy 620024, Tamilnadu, India.
authors.forename: Thamilmaran
authors.initials: T
authors.lastname: Kathamuthu
authors.affiliation: Potsdam Institute for Climate Impact Research, Telegrafenberg, Potsdam D-14415, Germany.
authors.forename: Jürgen
authors.initials: J
authors.lastname: Kurths
mesh_terms: D004581:Electronics; D017711:Nonlinear Dynamics