腔光力杂化量子系统中的新奇效应与应用

杂化量子系统被人们认为是未来数十年内孕育量子科学重大发现的温床，是驱动量子科学发展的动力。腔光力杂化系统因其集成度高、可操控性强，已在宏观量子态制备、运动传感及量子精密测量和量子物理技术等诸多领域展示出重要的应用价值。本项目充分利用腔光力杂化量子系统中各组分的量子特性和可操控优势，研究此类杂化量子系统的奇异点物理，发现其高阶奇异点及其特征，探索高阶奇异点效应与奇异点量子统计性质。发展基于腔光力系统的奇异点辅助的力学灵敏探测方案和噪声抑制方法，为量子精密测量提供新方向。研究基于腔光力杂化量子系统的宏观-微观杂化量子相干性和量子相干效应。提出杂化量子纠缠的产生与操控方案，探索微观-微观纠缠与微观-宏观纠缠之间的关系，揭示EP对量子相干性和量子相干效应影响的物理机理。本项目的开展，将拓展和深化EP物理研究，预言新物理效应，发展新的灵敏测量方法，为量子调控和量子力学基本问题研究提供新原理、新方法。

Hybrid systems harbor surprises that will fuel quantum science for decades to come. Rapid advances in recent years in hybrid cavity optomechanical systems have led to a wide range of practical applications, such as macroscopic quantum state preparation, detection of mechanical motion, quantum precision measurement and quantum technology. Inspired by the advantages and applications of hybrid cavity optomechanical quantum systems, we propose to study the exotic quantum effects based on exceptional point (EP), e.g., the basic properties and applications of high-order EP and the quantum effects of EP, EP assisted weak-force sensing and quantum noise suppression, EP induced micro-micro or micro-macro entanglement. These works, as shown by our initial results, hold the promise to provide new methods for quantum precision measurement, and more insightful guides for quantum manipulation and the basic research of quantum physics.