Time-domain Ramsey interferometry with interacting Rydberg atoms

TL;DR

This paper theoretically studies the dynamics of interacting Rydberg atoms during Ramsey interferometry, revealing how many-body interactions affect signal contrast and phase, with scaling laws for different experimental parameters.

Contribution

It introduces a theoretical model for Rydberg atom Ramsey interferometry considering long-range interactions and derives scaling laws for experimental conditions.

Findings

Contrast degradation depends on interaction strength and time.

Phase accumulation is influenced by ensemble density and dimensionality.

Scaling laws predict behavior for various experimental setups.

Abstract

We theoretically investigate the dynamics of a gas of strongly interacting Rydberg atoms subject to a time-domain Ramsey interferometry protocol. The many-body dynamics is governed by an Ising-type Hamiltonian with long range interactions of tunable strength. We analyze and model the contrast degradation and phase accumulation of the Ramsey signal and identify scaling laws for varying interrogation times, ensemble densities, and ensemble dimensionalities.