Nonadiabatic Population Transfer in Λ‐Type Non‐Hermitian Three‐Level Systems

Key Points

• This research aims to explore nonadiabatic population transfer in non-Hermitian three-level systems.
• Developed a theoretical framework focusing on nonadiabatic population transfer based on Lewis-Riesenfeld auxillary approach.
• Utilized second-order approximation theory to quantify population transfer fidelity.
• Investigated the effects of perturbation-induced systematic errors on population transfer.
• Achieved perfect population transfer under ideal dynamical conditions.
• Demonstrated high population transfer fidelity, supporting robustness to small perturbations.
• Provided a reliable theoretical basis for future research in non-Hermitian dynamical systems.

Abstract