本项目研究内容对应指南重点资助研究方向“关键量子功能材料的可控制备与量子态体系的精准构筑”中“基于各类量子态的量子比特构筑”这一研究重点。项目拟研究金刚石SiV center和声子晶体量子化声波强耦合中的新奇量子现象和物理机制，探究基于这一混合量子系统构筑新型量子体系的新原理与新方案。在单量子态水平上探究SiV center和声子晶体中量子化声波强相互作用过程中的量子现象及过程的物理机理，突破传统自旋-声子耦合的物理极限；基于SiV center卓越的自旋和光学特性，结合人工量子声学微结构的能带结构丰富、可调制、易操控特性，研究构筑扩展性优、集成度高、相干性好、操控性佳的新型量子体系。本项研究为金刚石SiV center和声子晶体强耦合体系在量子计算与量子探测等方面的应用建立理论基础和基本方法，为构筑展示纠缠/叠加量子态等量子行为的第二代量子体系奠定物理基础。

This project corresponds to the key problem of constructing new type of qubits with all kinds of quantum states. Solid state systems such as color centers in diamond play an important role in quantum information processing and the fundamental investigation of quantum physics. In this project, we propose to investigate the strong coupling between SiV centers in diamond and quantized acoustic waves in a phononic crystal. With this strong spin-phonon coupling setup, we investigate new schemes for hybrid quantum devices that may be useful for quantum science and technology. At the single quantum level, we study the quantum phenomena and underlying physics between single SiV spins and phonon modes with tunable bands. We also propose to make use of the spin and optical properties of the SiV centers, and the excellent band features of phononic crystals, which can help to realize the strong coupling limit. This work allows for the construction of hybrid quantum devices with SiV spins and quantum acoustic microstructures, which can provide a promising platform for implementing quantum information.