Energy rectification in active gyroscopic networks under time-periodic modulations

TL;DR

This paper investigates how time-periodic modulations in active gyroscopic networks induce net energy transport without temperature gradients, revealing new mechanisms for energy rectification in complex systems.

Contribution

It introduces the effect of time-periodic modulations on gyroscopic networks, explaining the emergence of anomalous energy transport through a combined path integral and diagrammatic approach.

Findings

Time-periodic modulations generate net energy transport.

Energy transport occurs without temperature gradients.

Transport patterns relate to local network structures.

Abstract

Combinations of gyroscopic forces and nonequilibrium activity has been explored recently in rectifying energy in networks with complex geometries and topologies [Phys. Rev. X 10, 021036]. Based on this previous work, here we study the effect of added time-periodic modulations. Numerical calculations show that the time-modulated network generates net energy transport between sites and the surroundings, even in the absence of any temperature gradients. Combining path integral formulation and diagrammatic expansion, we explain how such anomalous energy transport emerges, and show how the transport pattern in complex networks can be connected to relatively simple local structures.