Extraordinary exciton conductance induced by strong coupling

TL;DR

This paper shows that strong coupling between molecules and electromagnetic modes can dramatically increase exciton conductance, enabling efficient energy transfer in organic systems.

Contribution

It introduces a 1D model demonstrating how collective polaritonic modes facilitate exciton transport, surpassing disorder limitations in organic materials.

Findings

Exciton conductance can be enhanced by orders of magnitude under strong coupling.

Formation of collective polaritonic modes enables direct exciton transfer across disordered structures.

Potential applications include exciton transistors and improved energy transport in biological systems.

Abstract

We demonstrate that exciton conductance in organic materials can be enhanced by several orders of magnitude when the molecules are strongly coupled to an electromagnetic mode. Using a 1D model system, we show how the formation of a collective polaritonic mode allows excitons to bypass the disordered array of molecules and jump directly from one end of the structure to the other. This finding could have important implications in the fields of exciton transistors, heat transport, photosynthesis, and biological systems in which exciton transport plays a key role.