2013/03/27 by Chuansheng Shen, Hanshuang Chen, Zhonghuai Hou · 7 citations
Computer Science · Mathematics · Neuroscience · Physics and Astronomy · #Acoustics #Bistability #Computer science #Mathematics #Metapopulation #Neural dynamics and brain function #Node (physics) #Nonlinear Dynamics and Pattern Formation #Optoelectronics #Physics #Population #Quantum mechanics #SIGNAL (programming language) #Simple (philosophy) #Statistical physics #Subthreshold conduction #Topology (electrical circuits) #Transistor #nlin.AO #physics.soc-ph #stochastic dynamics and bifurcation
paper · pdf · doi:10.1209/0295-5075/102/38004
published in Europhysics Letters (EPL) 102(3), 38004 (Institute of Physics) · 5 pages, 5 figures
arxiv created 2013/03/27 · openalex publication_date 2013/05/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the effect of mobility on the response of coupled oscillators to a subthreshold external signal in metapopulation networks, wherein each node represents a subpopulation with overdamped bistable oscillators that can randomly diffuse between nodes. With increasing mobility rate, the oscillators undergo transitions from intrawell to interwell motion, demonstrating clearly mobility-enhanced signal amplification. Moreover, the response shows nonmonotonic dependence on the mobility rate, i.e. , a maximal gain occurs at a moderate level of mobility. This interesting phenomenon is robust against variations in the overall density, network size, as well as network topology. In addition, a simple mean-field analysis is carried out to qualitatively illustrate the simulation results.