Polariton blockade in the Jaynes-Cummings-Hubbard model with trapped ions

TL;DR

This paper demonstrates polariton blockade in a trapped-ion system by realizing the anti-Jaynes-Cummings-Hubbard model, showing controlled polariton hopping suppression due to interactions, advancing quantum simulation of strongly correlated systems.

Contribution

First experimental realization of polariton blockade in a trapped-ion setup using the anti-Jaynes-Cummings-Hubbard model, enabling quantum simulation of strongly interacting polaritonic systems.

Findings

Single polariton hops between ions.

Polariton hopping is suppressed with multiple polaritons.

Established a platform for quantum simulation of strongly correlated polaritonic systems.

Abstract

We have experimentally observed the dynamics of a single polariton and two polaritons in a two-ion chain. By driving two trapped ions at a motional blue-sideband transition, we realize the anti-Jaynes-Cummings-Hubbard model. When a single polariton exists in a trapped-ion chain, the polariton hops between the ion sites. On the other hand, when there are single polaritons at each ion site, the hopping of the polaritons is suppressed because of the polariton-polariton interaction induced by the nonlinearity of the anti-Jaynes-Cummings interaction, thereby realizing the blockade of polariton hopping in the anti-Jaynes-Cummings-Hubbard model with trapped ions. Our work is a step towards the development of a trapped-ion based quantum simulator for strongly interacting polaritonic systems.