Delayed feedback as a means of control of noise-induced motion
Abstract
Time--delayed feedback is exploited for controlling noise--induced motion in coherence resonance oscillators. Namely, under the proper choice of time delay, one can either increase or decrease the regularity of motion. It is shown that in an excitable system, delayed feedback can stabilize the frequency of oscillations against variation of noise strength. Also, for fixed noise intensity, the phenomenon of entrainment of the basic oscillation period by the delayed feedback occurs. This allows one to steer the timescales of noise-induced motion by changing the time delay.
Cite
@article{arxiv.cond-mat/0309226,
title = {Delayed feedback as a means of control of noise-induced motion},
author = {N. B. Janson and A. G. Balanov and E. Schoell},
journal= {arXiv preprint arXiv:cond-mat/0309226},
year = {2009}
}
Comments
4 pages, 4 figures. In the replacement file Fig. 2 and Fig. 4(b),(d) were amended. The reason is numerical error found, that affected the quantitative estimates of correlation time, but did not affect the main message