Robust stimulated Raman shortcut-to-adiabatic passage by invariant-based optimal control

TL;DR

This paper introduces a robust, invariant-based shortcut to adiabaticity for stimulated Raman adiabatic passage (STIRAP), enabling faster, more accurate quantum state transfer with suppressed errors in three-level systems.

Contribution

It develops a control method that speeds up STIRAP using invariant-based shortcuts, improving efficiency and robustness over traditional adiabatic techniques.

Findings

Achieves fast and accurate population transfer in three-level systems.

Largely suppresses systematic errors during transfer.

Provides a trade-off relation between intermediate state population and Rabi frequencies.

Abstract

The stimulated Raman adiabatic passage (STIRAP) shows an efficient technique that accurately transfers population between two discrete quantum states with the same parity, in three-level quantum systems based on adiabatic evolution. This technique has widely theoretical and experimental applications in many fields of physics, chemistry, and beyond. Here, we present a generally robust approach to speed up STIRAP with invariant-based shortcut to adiabaticity. By controlling the dynamical process, we inversely design a family of Hamiltonians that can realize fast and accurate population transfer from the first to the third level, while the systematic error is largely suppressed in general. Furthermore, a detailed trade-off relation between the population of the intermediate state and the amplitudes of Rabi frequencies in the transfer process is illustrated. These results provide an optimal route toward manipulating the evolution of three-level quantum systems in future quantum information processing.