Collaborative Research: Coherent Manipulation and Transfer of Quantum Information amongst Single Spin Systems

*技术摘要*“量子信息科学”的新兴领域在利用钻石和碳化硅缺陷中心中单自旋的相干控制方面取得了快速进展，开辟了一条在室温下工作的量子比特的新途径。这一提议旨在将这些显着的发展扩展到量子信息的相干操纵和全态转移上，这些不同的系统由不同的材料组成，这些材料的单个量子属性已经被很好地理解。最终目标是在单自旋能级和室温下实现物理上不同的量子系统之间的量子相干通信。PI将把时空分辨的单自旋谱与模型系统的设计和制造结合起来，在低维通信通道(如2DEG和纳米线)中将单自旋(如碳化硅中的缺陷)与整体自旋相耦合。拟议的研究提供了量子材料和测量方面的高级技术培训，并为未来在学术界和工业界的职业生涯提供了理想的培训。PIS还将通过院校项目和合作教授一门关于科学实践的跨学科本科生课程来增强本科生研究的多样性和卓越。*非技术摘要*现代信息技术依赖于利用自然界量子力学方面的设备，如激光、闪存和磁隧道结。这样的设备技术仍然没有充分利用量子力学的技术潜力，限制了它们控制量子力学波的幅度的功能，并忽略了它们的相位。“量子信息科学”的新兴领域试图通过探索量子力学中更多非直观方面的技术可能性，即量子相干和量子纠缠，来纠正这一局限性。量子信息处理的一个关键挑战是开发实用的场景，允许在系统的不同部分之间交换相干的量子信息。这项提议旨在展示由不同材料构建的不同系统中的这种现象，这些材料的单个量子属性已经被很好地理解。最终目标是在单自旋能级和室温下实现物理上不同的量子系统之间的量子相干通信。拟议的研究提供了量子材料和测量方面的高级技术培训，并为未来在学术界和工业界的职业生涯提供了理想的培训。PIS还将通过院校课程和合作教授跨学科的科学实践本科课程，加强本科生研究的多样性和卓越。

****Technical Abstract****The emerging area of "quantum information science" has seen rapid advances in exploiting the coherent control of single spins in defect centers in diamond and SiC, opening up a new pathway toward qubits that function at room temperature. This proposal aims to extend these remarkable developments toward the coherent manipulation and full state transfer of quantum information in heterogeneous systems built from disparate materials whose individual quantum properties are already well understood. The ultimate goal is to achieve quantum-coherent communication between physically distinct quantum systems at the single spin level and at room temperature. The PIs will combine spatio-temporally resolved single spin spectroscopies with the design and fabrication of model systems that couple single spins (such as defects in SiC) with ensemble spins in low dimensional communication channels (such as 2DEGs and nanowires). The proposed research offers advanced technical training in quantum materials and measurement and provides ideal training for future careers in academics and industry. The PIs will also enhance the diversity and excellence of undergraduate research through institutional programs and by collaboratively teaching a cross-disciplinary undergraduate course on the Practice of Science.****Non-Technical Abstract***Modern information technology relies on devices such as lasers, flash memory and magnetic tunnel junctions that exploit the quantum mechanical aspects of the natural world. Such device technologies still do not make use of the full technological potential of quantum mechanics, restricting their functionality to control over the amplitude of quantum mechanical waves and ignoring their phase. The emerging area of "quantum information science" seeks to redress this limitation by exploring the technological possibilities of the more non-intuitive aspects of quantum mechanics, namely quantum coherence and quantum entanglement. A key challenge for quantum information processing is the development of pragmatic scenarios that will allow the exchange of coherent quantum information between disparate parts of a system. This proposal aims to demonstrate such phenomena in heterogeneous systems built from disparate materials whose individual quantum properties are well understood. The ultimate goal is to achieve quantum-coherent communication between physically distinct quantum systems at the single spin level and at room temperature. The proposed research offers advanced technical training in quantum materials and measurement and provides ideal training for future careers in academia and in industry. The PIs will also enhance the diversity and excellence of undergraduate research through institutional programs and by collaboratively teaching a cross-disciplinary undergraduate course on the Practice of Science.