Noise-enhanced propagation of bichromatic signals
- We examine the influence of noise on the propagation of harmonic signals with two frequencies through discrete bistable media. We show that random fluctuations enhance propagation of this kind of signals for low coupling strengths, similarly to what happens with purely monochromatic signals. As a more relevant finding, we observe that the frequency being propagated with better efficiency can be selected by tuning the intensity of the noise, in such a way that for large noises the highest frequency is transmitted better than the lower one, whereas for small noises the reverse holds. Such a noise-induced frequency selection can be expected to exist for general multifrequency harmonic signals.
| Verfasserangaben: | Alexei A. Zaikin, Dmitri Topaj, Jordi Garcia-Ojalvo |
|---|---|
| Publikationstyp: | Wissenschaftlicher Artikel |
| Sprache: | Englisch |
| Jahr der Erstveröffentlichung: | 2002 |
| Erscheinungsjahr: | 2002 |
| Datum der Freischaltung: | 24.03.2017 |
| Quelle: | Fluctuations and noise letters. - 2 (2002), 1, L47 - L52 |
| Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Name der Einrichtung zum Zeitpunkt der Publikation: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |
