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Experimental Evidence of Time-Delay-Induced Death in Coupled Limit-Cycle Oscillators

D. V. Ramana Reddy, A. Sen, and G. L. Johnston
Phys. Rev. Lett. 85, 3381 – Published 16 October 2000
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Abstract

Experimental observations of time-delay-induced amplitude death in two coupled nonlinear electronic circuits that are individually capable of exhibiting limit-cycle oscillations are described. The existence of multiply connected death islands in the parameter space of coupling strength and time delay for coupled identical oscillators is established. The existence of such regions was predicted earlier on theoretical grounds [Phys. Rev. Lett. 80, 5109 (1998); Physica (Amsterdam) 129D, 15 (1999)]. The experiments also reveal the occurrence of multiple frequency states, frequency suppression of oscillations with increased time delay, and the onset of both in-phase and antiphase collective oscillations.

  • Received 12 June 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.3381

©2000 American Physical Society

Authors & Affiliations

D. V. Ramana Reddy, A. Sen, and G. L. Johnston*

  • Institute for Plasma Research, Bhat, Gandhinagar 382428, India

  • *Present address: EduTron Corp., 5 Cox Road, Winchester, MA 01890.

See Also

Delay is a Death Sentence

Phys. Rev. Focus 6, 15 (2000)

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Vol. 85, Iss. 16 — 16 October 2000

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