# Roton-Induced Trapping in Strongly Correlated Rydberg Gases

## TL;DR

This paper uses numerical simulations to study how roton minima in strongly correlated Rydberg gases suppress particle transport and how tuning interactions can overcome disorder effects, enabling exploration of highly coupled regimes.

## Contribution

It demonstrates the emergence of roton minima in Rydberg gases and shows how tuning interactions can mitigate disorder-induced heating.

## Key findings

- Roton minima significantly suppress particle diffusion.
- Tuning interaction strength overcomes disorder heating.
- Spatial order correlates with transport suppression.

## Abstract

Atoms excited into high-lying Rydberg states and under strong dipole-dipole interactions exhibit phenomena associated with highly correlated and complex systems. We perform first principles numerical simulations on the dynamics of such systems. The emergence of a roton minimum in the excitation spectrum, as expected in strongly correlated gases and accurately described by Feynman's theory of liquid helium, is shown to significantly inhibit particle transport, with a strong suppression of the diffusion coefficient, due to the emerging spatial order. We also demonstrate how the ability to temporally tune the interaction strength among Rydberg atoms can be used in order to overcome the effects of disorder induced heating, allowing the study of unprecedented highly coupled regimes.