近日，赣南师范大学卢天祥团队研究了激子光力学中相控鲁棒量子纠缠。相关论文于2026年3月16日发表在《物理评论A》杂志上。

量子纠缠作为量子力学中引人入胜且至关重要的现象，构成了实现超越经典边界的技术基石，并为各类量子器件的实际应用铺平了道路。

研究组提出了一种在激子-光力学混合系统中操控纠缠的方法，通过利用两个不同方向传播的泵浦激光，不仅能调控激子-光子、激子-声子及光子-声子模式间的两体纠缠，还能调控涉及激子、光子与声子模式的三体纠缠。研究发现，通过适当调节两束泵浦激光的相位差，可以有效控制甚至增强所有三种不同类型的两体量子纠缠与三体纠缠，同时提升其对抗环境热噪声的鲁棒性。该研究结果为操控和保护量子纠缠开辟了一条易于实现的新途径，这对于需要纯量子资源的广泛应用场景至关重要，例如容错量子处理与量子精密测量。

附：英文原文

Title: Phase-controlled robust quantum entanglement in exciton optomechanics

Author: Jing-Xue Liu, Wen-Jing Hu, Jian Huang, Baijun Li, Xian-Li Yin, Tian-Xiang Lu

Issue&Volume: 2026/03/16

Abstract: Quantum entanglement stands as an intriguing and pivotal phenomenon in quantum mechanics, forming the cornerstone for the realization of technologies transcending classical boundaries and enabling the practical deployment of diverse quantum devices. Here, we propose a method to manipulate both the pairwise entanglement among exciton-photon, exciton-phonon, and photon-phonon modes, and the tripartite entanglement involving exciton, photon, and phonon modes, within a hybrid exciton-optomechanics system, utilizing two pump lasers propagating in different directions. We find that all three distinct types of bipartite quantum entanglement and the tripartite entanglement can be effectively controlled and even enhanced along with improved robustness against environmental thermal noise by properly adjusting the phase difference between the two pump lasers. Our findings open up an easily accessible method for manipulating and protecting quantum entanglement, which is crucial in a wide range of practical applications requiring purely quantum resources, such as noise-tolerant quantum processing and quantum precision measurements.

DOI: 10.1103/4whf-b89k

Source: https://journals.aps.org/pra/abstract/10.1103/4whf-b89k