Enhancement of Coherent Response by Quenched Disorder

TL;DR

This paper explores how quenched disorder can enhance the coherent response of coupled oscillators, revealing resonance phenomena even without time-dependent correlations, which broadens understanding of disorder effects in driven systems.

Contribution

It demonstrates that quenched disorder can induce resonance and improve coherence in coupled oscillators, a novel insight into disorder-driven resonance phenomena.

Findings

Quenched disorder enhances oscillator locking to periodic driving.

Resonance behavior can be induced by static, non-time-dependent noise.

Disorder can improve coherence without dynamic correlations.

Abstract

We investigate the effects of quenched disorder on the coherent response in a driven system of coupled oscillators. In particular, the interplay between quenched noise and periodic driving is explored, with particular attention to the possibility of resonance. The phase velocity is examined as the response of the system; revealed is the enhancement of the fraction of oscillators locked to the periodic driving, displaying resonance behavior. It is thus concluded that resonance behavior may also be induced by quenched disorder which does not have time-dependent correlations.