Fast population transfer engineering of three-level systems

TL;DR

This paper presents a method to rapidly transfer population in three-level quantum systems using invariant-based inverse engineering, optimizing laser pulses for efficiency, reduced intensity, and cost.

Contribution

It introduces a novel approach to design fast, efficient laser pulses for three-level systems, including strategies to lower laser intensity and energy costs.

Findings

High-fidelity population transfer achieved with optimized pulses

Laser intensities can be reduced by populating intermediate states

Energy costs are quantified and minimized

Abstract

We design, by invariant-based inverse engineering, resonant laser pulses to perform fast population transfers in three-level systems. The efficiency and laser intensities are examined for different protocols. The energy cost to improve the fidelity is quantified. The laser intensities can be reduced by populating the intermediate state and by multi-mode driving.