Collaborative Research: Light-Matter Quantum Interface with Nitrogen Vacancy Centers in Diamond

合作研究：光物质量子界面与钻石中的氮空位中心

• 批准号: 1005499
• 负责人: Hailin Wang
• 金额: $ 45.9万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1005499&HistoricalAwards=false
• 关键词: Collaborative; Research; Light; Matter; Quantum

This program explores quantum control at the level of single photon, single electron spin, and single nuclear spin in a unique system that features strong coherent coupling between a photon and an electron spin and between an electron spin and a nearby nuclear spin. The experimental studies will be carried out in a cavity QED system, in which a negatively charged nitrogen vacancy (NV) center in a diamond nanopillar couples strongly to a whispering gallery mode (WGM) in a silica microresonator. Proposed research involves close collaborations between the groups at the University of Oregon and the University of Pittsburg, and builds upon recent advances of these two groups in developing a cavity QED system for NV centers and in realizing quantum control of individual electron and nuclear spins, especially quantum state mapping between an electron spin in a NV center and a proximal carbon-13 nuclear spin in the diamond lattice. The primary technical challenges of the proposed research are anticipated to be the development of a well-controlled strong-coupling cavity QED system, the exquisite control of NV excited-state level structures in a nanopillar for dark-state adiabatic evolution, and the efficient readout of electron and nuclear spins. Broader Impact: Combining quantum control of individual photons, electron spins, and nuclear spins in a solid-state system develops new technical capabilities, creates new model systems, and opens up new possibilities for the emerging field of quantum information science. A light-matter interface with electron and nuclear spins can enable a robust quantum memory for single photons and can also significantly advance our ability to control the coherent coupling between distant and well-isolated nuclear spins. The entanglement of distant nuclear spins or distant electron-nuclear spin pairs in a solid-state environment provides the scientific community an excellent model system to explore fundamental issues of quantum entanglement and error correction. These issues are central to the field of quantum information as well as to our understanding of the quantum world. With a solid-state light-matter interface and with long-lived quantum memory, it might be possible to explore complex quantum networks that can distribute and transport quantum information between distant quantum nodes. The research program also makes important contributions to education and human resource by providing training for graduate and undergraduate students in areas of both scientific and technological importance. This training will prepare the students for careers in academia, industry, and government.

该程序在独特的系统中探索了单光子，单电子自旋和单个核自旋水平的量子控制，该系统具有光子和电子自旋之间的强相干耦合以及电子自旋和附近的核自旋之间的强相干耦合。实验研究将在腔QED系统中进行，其中在钻石纳米菌中有负电荷的氮空位（NV）中心与二氧化硅微孔子中的窃窃私图库模式（WGM）强烈地与低语的含量。 Proposed research involves close collaborations between the groups at the University of Oregon and the University of Pittsburg, and builds upon recent advances of these two groups in developing a cavity QED system for NV centers and in realizing quantum control of individual electron and nuclear spins, especially quantum state mapping between an electron spin in a NV center and a proximal carbon-13 nuclear spin in the diamond lattice.预计拟议研究的主要技术挑战是开发良好控制的强耦合腔QED系统，对黑态绝热进化的Nanopillar中NV激发状态水平结构的精美控制，以及对电子和核纺丝的有效读数。更广泛的影响：结合固态系统中单个光子，电子旋转和核自旋的量子控制，可以开发新的技术能力，创建新的模型系统，并为量子信息科学的新兴领域提供新的可能性。与电子和核自旋的轻度界面可以为单个光子提供稳健的量子记忆，也可以显着提高我们控制远处和良好溶解核自旋之间相干耦合的能力。固态环境中遥远的核自旋或远处电子核自旋对的纠缠为科学界提供了一个出色的模型系统，可探索量子纠缠和误差校正的基本问题。这些问题是量子信息领域以及我们对量子世界的理解的核心。使用固态的光 - 物质界面并具有长寿命量子存储器，可以探索可以在遥远的量子节点之间分配和传输量子信息的复杂量子网络。该研究计划还通过为科学和技术重要性领域的研究生和本科生提供培训，为教育和人力资源做出重要贡献。这项培训将使学生为学术界，工业和政府的职业做好准备。