Array-induced collective transport in the Brownian motion of coupled nonlinear oscillator systems
Array-induced collective transport in the Brownian motion of coupled nonlinear oscillator systems
Brownian motion of an array of harmonically coupled particles subject to a periodic substrate potential and driven by an external bias is investigated. In the linear response limit (small bias), the coupling between particles may enhance the diffusion process, depending on the competition between the harmonic chain and the substrate …