# Explicit construction of nonadiabatic passages for stimulated Raman transitions

## TL;DR

This paper introduces a method to create nonadiabatic passages for stimulated Raman transitions in three-level systems, enabling efficient state transfer without extra coupling fields and enhancing control via shortcuts to adiabaticity.

## Contribution

It presents a novel scheme for constructing nonadiabatic passages that do not require additional coupling fields and explores integrating shortcuts to adiabaticity for improved performance.

## Key findings

- State transfer achieved without extra coupling fields.
- Alternative passages with reduced intermediate level occupancy designed.
- Integration of shortcuts to adiabaticity enhances control.

## Abstract

We propose a scheme which can produce desired nonadiabatic passages for the stimulated Raman transition in three-level systems. The state transfer in the protocol is realized by following the evolution of the dynamical basis itself and no additional coupling field is required. We also investigate the interplay between the present nonadiabatic protocol and the shortcut to adiabaticity. By incorporating the latter technology, we show that alternative passages with less occupancy of the intermediate level could be designed.