Strongly correlated few-body states of Rydberg polaritons (A08)

通过开放系统控制产生和稳定有趣的许多体状态是基于定制储层之间的相互作用和强相互作用。在这个项目中，我们通过在超冷的镱气体中控制里德伯态的耦合来实现单个光子之间的有效相互作用。我们首次利用具有两个价电子的原子物种进行里德堡介导的光子相互作用，旨在实现对相干相互作用和耗散通道都具有高度控制的少光子到多光子的强相关系统。我们首先着眼于自下而上的方法来构建多达十个光子的一维系统，目的是研究出射光中的多光子相关性，并探索有效量子场理论在相互作用的里德伯极化子中的适用性。

The creation and stabilization of interesting many body states via open system control is based on the interplay between tailored reservoirs and strong interactions. In this project, we implement effective interaction between individual photons via controlled coupling to Rydberg states in an ultracold ytterbium gas. Utilizing for the first time an atomic species with two valence electrons for Rydberg-mediated photon interaction, we aim to realize strongly correlated systems of few to many photons with high degrees of control over both the coherent interaction as well as the dissipation channels. Focussing initially on a bottom-up approach to construct one-dimensional systems of up to ten photons, we aim to study multi-photon correlations in the outgoing light and explore the applicability of effective quantum field theories to interacting Rydberg polaritons.