Stochastic resonance due to internal noise in reaction kinetics

TL;DR

This paper investigates how internal noise alone can induce stochastic resonance in a reaction model, highlighting the complex interplay of stochastic effects at multiple fixed points in a bistable system.

Contribution

It demonstrates that stochastic resonance can arise solely from internal noise without external influences, revealing complex dynamics in reaction kinetics.

Findings

Stochastic resonance occurs due to internal noise alone.

The phenomenon results from interactions at three fixed points.

Internal noise induces complex bistable system behavior.

Abstract

We study a reaction model that presents stochastic resonance purely due to internal noise. This means that the only source of fluctuations comes from the discrete character of the reactants, and no more noises enter into the system. Our analysis reveals that the phenomenon is highly complex, and that is generated by the interplay of different stochasticity at the three fixed points of a bistable system.