Universal scaling in a strongly interacting Rydberg gas

TL;DR

This paper demonstrates universal algebraic scaling laws in the excitation dynamics of a strongly interacting ultracold Rydberg gas, supported by experimental data and theoretical models, indicating universal behavior in such quantum systems.

Contribution

It reveals universal scaling laws in a strongly interacting Rydberg gas, supported by experiments and simulations, advancing understanding of many-body quantum dynamics.

Findings

Experimental data shows algebraic scaling laws.

Mean field and numerical simulations agree with experiments.

Evidence for universality in strongly interacting Rydberg gases.

Abstract

We study a gas of ultracold atoms resonantly driven into a strongly interacting Rydberg state. The long distance behavior of the spatially frozen effective pseudospin system is determined by a set of dimensionless parameters, and we find that the experimental data exhibits algebraic scaling laws for the excitation dynamics and the saturation of Rydberg excitation. Mean field calculations as well as numerical simulations provide an excellent agreement with the experimental finding, and are evidence for universality in a strongly interacting frozen Rydberg gas.