Stabilization of ratchet dynamics by weak periodic signals - art. no. 066212

Authors
Barbi, M Salerno, M
Citation
M. Barbi et M. Salerno, Stabilization of ratchet dynamics by weak periodic signals - art. no. 066212, PHYS REV E, 6306(6), 2001, pp. 6212
Citations number
28
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW E
ISSN journal
1063651X → ACNP
Volume
6306
Issue
6
Year of publication
2001
Part
2
Database
ISI
SICI code
1063-651X(200106)6306:6<6212:SORDBW>2.0.ZU;2-0
Abstract
We study the influence of weak periodic signals on the transport properties of underdamped ratchets. We find that the constant current intervals relat ed to the ratchet can be significantly enlarged by a weak subharmonic signa l that is in phase with the internal driver. This stabilization phenomenon is found to exist both in absence and in presence of noise. The dependence of this effect on the phase of the applied signal is also investigated.