Poissonian noise assisted transport in periodic systems

TL;DR

This paper investigates how Poissonian noise can induce and control directed transport in a symmetric periodic system with harmonic driving, revealing multiple velocity reversals and parameter-dependent transport direction.

Contribution

It demonstrates that asymmetric Poissonian noise alone can induce transport and that external forces can manipulate transport direction through velocity reversals.

Findings

Poissonian noise induces transport in symmetric potentials.

External harmonic driving causes multiple velocity reversals.

Transport direction can be controlled by adjusting external parameters.

Abstract

We revisit the problem of transport of a harmonically driven inertial particle moving in a {\it symmetric} periodic potential, subjected to {\it unbiased} non-equilibrium generalized white Poissonian noise and coupled to thermal bath. Statistical asymmetry of Poissonian noise is sufficient to induce transport and under presence of external harmonic driving this system exhibits a phenomenon of multiple velocity reversals. Consequently, one can manipulate the direction of transport just by adjusting the parameters of externally applied forces.