磁光旋转效应在医学诊断、矿藏探测、信息存储、违禁品检测、地震预警、导航定位等方面有着广泛的应用前景。如何增强磁光旋转效应，提高磁力计的灵敏度是该领域的重要研究问题之一。本项目主要以具有对称性破缺特性的双Lambda型构型为核心，研究原子自发辐射噪声对非线性磁光旋转效应的影响，提出高灵敏度矢量磁力计的设计方案。同时结合主动拉曼增益和超冷量子气体，研究非线性磁光偏转增强，探索实现具有超高灵敏度的原子磁力计。该项目的研究有助于促进原子磁力计的发展，具有重要的科学研究价值和广阔的应用前景。

The magneto-optical rotation effect has broad application prospects in medical diagnosis, mineral exploration, information storage, contraband detection, earthquake warning, navigation, and positioning. How to enhance the magneto-optical rotation effect and improve the sensitivity of the magnetometer is one of the important research issues in this field. In this project, the double-Lambda configuration with symmetry breaking characteristics is taken as the core to study the influence of atomic spontaneous radiation noise on the nonlinear magneto-optical rotation effect, and design schemes to achieve high-sensitivity vector magnetometer. At the same time, combined with the active Raman gain and the ultra-cold quantum gas, we will study the nonlinear magneto-optical rotation enhancement, and explore the atomic magnetometer with ultra-high sensitivity. The research of this project will help to promote the development of magnetometers to meet the needs of practical applications, which has important scientific research value and broad practical application prospects.