Non-markovian polariton dynamics in organic strong coupling

TL;DR

This paper introduces a new theoretical framework to understand the non-Markovian dynamics in strongly coupled organic systems, explaining their unusually long-lived lower polariton states.

Contribution

It develops a novel theoretical approach to describe non-Markovian relaxation dynamics in organic strong coupling systems.

Findings

Non-Markovian effects explain the long lifetime of the lower polariton.

Theoretical framework captures the dynamics of dressed organic systems.

Large Rabi splittings observed even in vacuum states.

Abstract

Strongly coupled organic systems are characterized by unusually large Rabi splittings, even in the vacuum state. They show the counter-intuitive feature of a lifetime of the lower polariton state longer than for all other excited states. Here we build up a new theoretical framework to understand the dynamics of such coupled system. In particular, we show that the non-Markovian character of the relaxation of the dressed organic system explains the long lifetime of the lower polariton state.