Automated and robust population transfer method for three-level system using oscillating dark states

TL;DR

This paper introduces an automated, robust method for precise quantum state manipulation in three-level atomic systems using oscillating dark states, enhancing stability and reducing decoherence.

Contribution

It presents a novel approach leveraging oscillating dark states for adiabatic population transfer and superposition state preparation in three-level systems.

Findings

Decoherence is significantly suppressed during ODS evolution.

The method achieves stable and accurate population transfer.

Preparation of arbitrary superposition states is facilitated.

Abstract

An automated and robust method for adiabatic population transfer and the preparation of an arbitrary quantum superposition state in atomic system using the oscillating dark states (ODS) is presented. Quantum state of a three-level $\Lambda$ configuration atomic system oscillates periodically between two ground levels, when two pairs of classical detuning laser fields driving the system into the ODS under evolving adiabatic conditions. The decoherence of the ODS evolution is greatly suppressed, and the oscillation is very stable, therefore adiabatic population transfer and the preparation of an arbitrary quantum superposition state of atomic system can be completed accurately and conveniently.