Adiabatic rapid passage two-photon excitation of a Rydberg atom

TL;DR

This paper investigates three schemes for two-photon adiabatic rapid passage excitation of a Rydberg atom, achieving over 99% transfer efficiency with realistic experimental parameters.

Contribution

It compares different pulse schemes for efficient Rydberg excitation, demonstrating high transfer efficiency in all cases.

Findings

Over 99% transfer efficiency achieved

All schemes are feasible with current experimental setups

High Rabi frequencies and pulse durations are effective

Abstract

We considered the two-photon adiabatic rapid passage excitation of a single atom from the ground to a Rydberg state. Three schemes were analyzed: both pump and Stokes fields chirped and pulsed, only the pump field is chirped, and only the pump field is pulsed and chirped while the Stokes field is continuous wave (CW). In all three cases high transfer efficiencies $>99\%$ were achieved for the experimentally realizable Rabi frequencies and the pulse durations of the fields.