Coherent control in quantum open systems: An approach for accelerating dissipation-based quantum state generation

TL;DR

This paper introduces a method combining coherent control with dissipation to speed up quantum state generation, maintaining dissipation benefits while significantly reducing evolution time.

Contribution

The paper presents a novel approach that integrates target-state-related coherent control fields into dissipation processes to accelerate quantum state generation.

Findings

Target stationary states are generated faster using the proposed method.

The approach maintains the advantages of dissipation dynamics while improving speed.

Significant reduction in quantum state generation time achieved.

Abstract

In this paper, we propose an approach to accelerate the dissipation dynamics for quantum state generation with Lyapunov control. The strategy is to add target-state-related coherent control fields into the dissipation process to intuitively improve the evolution speed. By applying the current approach, without losing the advantages of dissipation dynamics, the target stationary states can be generated in a much shorter time as compared to that via traditional dissipation dynamics. As a result, the current approach containing the advantages of coherent unitary dynamics and dissipation dynamics allows for significant improvement in quantum state generation.