Work

Delay-Induced Excitability

Year: 2005

Type: article

Abstract: We analyze the stochastic dynamics of a bistable system under the influence of time-delayed feedback. Assuming an asymmetric potential, we show the existence of a regime in which the system dynamics displays excitability by calculating the relevant residence time distributions and power spectra. Experimentally we then observe this behavior in the polarization dynamics of a vertical cavity surface emitting laser with optoelectronic feedback. Extending these observations to two-dimensional systems with diffusive coupling, we finally show numerically that delay-induced excitability can lead to the appearance of propagating wave fronts and spirals.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.95.040601

Authors: Tomasz Piwonski, John Houlihan, Thomas Busch, Guillaume Huyet

Institutions: National University of Ireland, University College Cork, Institute of Electron Technology, Tyndall National Institute

Language: English

Topic: stochastic dynamics and bifurcation

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2057150706

FWCI: 2.674

Cites: 30

Cited by: 71

Related to: 10