Rydberg platform for non-ergodic chiral quantum dynamics

TL;DR

This paper introduces a method to create chiral interactions in Rydberg atoms, enabling the study of non-ergodic quantum dynamics with potential for scalable, directional quantum systems.

Contribution

It presents a novel mechanism for engineering directional interactions in Rydberg atoms, facilitating exploration of non-ergodic many-body quantum phenomena.

Findings

Observation of non-ergodic behavior via scars, confinement, or localization.

Demonstration of tunable chirality in interactions.

Robustness of the mechanism in the presence of classical noise.

Abstract

We propose a mechanism for engineering chiral interactions in Rydberg atoms via a directional antiblockade condition, where an atom can change its state only if an atom to its right (or left) is excited. The scalability of our scheme enables us to explore the many-body dynamics of kinetically constrained models with unidirectional character. We observe non-ergodic behavior via either scars, confinement, or localization, upon simply tuning the strength of two driving fields acting on the atoms. We discuss how our mechanism persists in the presence of classical noise and how the degree of chirality in the interactions can be tuned, opening towards the frontier of directional, strongly correlated, quantum mechanics using neutral atoms arrays.