Nature Communications

on Room temperature Exciton Polariton Lattices

Published:

A concept drawing of the structured cavity, in which we have demonstrated exciton-polariton molecules and lattices.
A concept drawing of the structured cavity, in which we have demonstrated exciton-polariton molecules and lattices.
Picture: IAP (Univ. Jena)

In a collaboration with groups from the Carl von Ossietzky Universität Oldenburg, the Julius-Maximilians-Universität Würzburg, the Friedrich-Schiller-Universität Jena, the Fraunhofer IOF, the National Institute for Materials Science, the Arizona State University we have been able to demonstrate the formation of exciton-polariton lattices. See more at the Nature CommunicationsExternal link.

The exciton-polaritons are formed by a monolayer of WSe2 residing in a structured and tunable high-q cavity. We show that the structure forms polariton molecules with intricate bandstructures. The dynamics of the system is governed a complex Hamiltonian and we can use the many-body quantum dynamics in the system for quantum annealing into the ground state.

Shoutout to Luckas Lackner as the first author of this fancy paper, Heiko Knopf for his first Nature Comms, and Christian Schneider for setting up this great collaboration.