Shortcuts to adiabatic passage for fast generation of three-atom singlet state by transitionless quantum driving

TL;DR

This paper proposes a fast, robust method for generating three-atom singlet states using shortcuts to adiabatic passage, quantum Zeno dynamics, and transitionless quantum driving, with potential experimental applications.

Contribution

It introduces a novel scheme combining quantum Zeno dynamics and transitionless quantum driving for efficient three-atom singlet state preparation.

Findings

The scheme is fast and robust against decoherence.

Numerical simulations show high fidelity under realistic conditions.

Parameter selection can optimize control over dissipation effects.

Abstract

Motivated by transitionless quantum driving, we construct shortcuts to adiabatic passage in a three-atom system to create a singlet state with the help of quantum zeno dynamics and non-resonant lasers. The influence of various decoherence processes is discussed by numerical simulation and the results reveal that the scheme is fast and robust against decoherence and operational imperfection. We also investigate how to select the experimental parameters to control the cavity dissipation and atomic spontaneous emission which will have an application value in experiment.