title: Signal transmission by vibrational resonance in one-way coupled bistable systems.
abstract: Low-frequency signal transmission in one-way coupled bistable systems subject to a high-frequency force is studied. Two cases including the high-frequency force on all sites (case 1) and only on the first site (case 2) are considered. In these two cases, vibrational resonance induced by the high-frequency force can play an active role to effectively improve the signal transmission, and undamped signal transmission can be found in a broad parameter region. The combinative action of injected low-frequency signal, high-frequency driving, and coupling is of importance. Our findings suggest that high-frequency signal could be properly used in low-frequency signal transmission, and especially the implementation of high-frequency force simply on the first site for case 2 is meaningful for its simplicity and high efficiency.
authors.affiliation: Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Whang 430071, China.
authors.forename: Chenggui
authors.initials: C
authors.lastname: Yao
authors.forename: Meng
authors.initials: M
authors.lastname: Zhan