Control Strategies for Maintaining Transport Symmetries Far From Equilibrium

TL;DR

This paper introduces two control strategies for mesoscopic systems that preserve transport symmetries under far-from-equilibrium conditions, enabling precise manipulation of particle and energy flows.

Contribution

The paper presents novel control schemes that maintain transport symmetries far from equilibrium, with exact descriptions and divergence-based optimization.

Findings

One scheme minimizes process dissimilarity using Kullback-Leibler divergence.

Both strategies effectively control particle and energy transport.

The methods can enhance mesoscopic system design and control.

Abstract

We present two strategies for controlling the transport dynamics of mesoscopic devices. In both cases, we manipulate the system's output - such as particle currents and energy flows - while maintaining symmetric transport properties, even under far-from-equilibrium conditions. We provide exact descriptions of each scheme and investigate their characteristics. Notably, one of them minimizes the dissimilarity between the original and modified processes, as quantified by the Kullback-Leibler divergence. These findings can be used to improve the design and control of mesoscopic systems.