Stark-tuned F\"orster resonance and dipole blockade for two to five cold Rydberg atoms: Monte Carlo simulations for various spatial configurations

TL;DR

This paper uses Monte Carlo simulations to analyze F"orster resonance and dipole blockade phenomena among a small number of cold Rydberg atoms, considering spatial uncertainties and experimental conditions relevant for quantum computing.

Contribution

It provides a detailed numerical study of Rydberg atom interactions, including effects of spatial uncertainties and non-ideal conditions, advancing understanding for quantum information applications.

Findings

Resonance amplitude is sensitive to spatial uncertainties.

Coherent Rabi oscillations are feasible under certain conditions.

Dipole blockade fidelity varies with experimental parameters.

Abstract

Results of numerical Monte Carlo simulations for the Stark-tuned F\"orster resonance and dipole blockade between two to five cold rubidium Rydberg atoms in various spatial configurations are presented. The effects of the atoms' spatial uncertainties on the resonance amplitude and spectra are investigated. The feasibility of observing coherent Rabi-like population oscillations at a F\"orster resonance between two cold Rydberg atoms is analyzed. Spectra and the fidelity of the Rydberg dipole blockade are calculated for various experimental conditions, including nonzero detuning from the F\"orster resonance and finite laser linewidth. The results are discussed in the context of quantum-information processing with Rydberg atoms.