Eur. Phys. J. D (2015) 69: 24
https://doi.org/10.1140/epjd/e2014-50539-x

Regular Article

Non-Markovian polariton dynamics in organic strong coupling

¹ ISIS and icFRC, Université de Strasbourg and CNRS (UMR 7006), 8 allée Gaspard Monge, 67000 Strasbourg, France
² Laboratoire Kastler Brossel, UPMC-Sorbonne Universités, CNRS, ENS-PSL Research University, Collège de France, 4 place Jussieu, 75002 Paris, France

Received: 21 July 2014
Received in final form: 22 October 2014
Published online: 21 January 2015

Abstract

Strongly coupled organic systems are characterized by unusually large Rabi splitting, 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.