Perfect stimulated Raman adiabatic passage with imperfect finite-time pulses

TL;DR

This paper introduces a tailored pulse sequence for perfect population transfer in STIRAP, analyzing optimal parameters and showing that protocol duration depends logarithmically on infidelity, with a new simple adiabaticity criterion.

Contribution

It provides a theoretical framework for optimal pulse shaping and timing in STIRAP, achieving perfect transfer with finite-time pulses and a simple adiabaticity condition.

Findings

Achieves perfect population transfer with Gaussian pulses

Protocol duration depends logarithmically on infidelity

Introduces a simple, effective adiabaticity criterion

Abstract

We present a well-tailored sequence of two Gaussian-pulsed drives that achieves perfect population transfer in STImulated Raman Adiabatic Passage (STIRAP). We give a theoretical analysis of the optimal truncation and relative placement of the Stokes and pump pulses. Further, we obtain the power and the duration of the protocol for a given pulse width. Importantly, the duration of the protocol required to attain a desired value of fidelity depends only logarithmically on the infidelity. Subject to optimal truncation of the drives and with reference to the point of fastest transfer, we obtain a new adiabaticity criteria, which is remarkably simple and effective.