Superconducting Electro-Optomechanical Photon Converter

研究计划概述：原子物理学、纳米技术和材料科学的最新进展允许用单个光子、电子或声子控制原子的量子态、微观和介观自旋、电路和机械振荡器。当今的主要挑战是混合量子网络的设计和相干控制。这将使量子工程成为一个高度跨学科的研究领域。最先进的处理量子信息的固态系统之一是基于集成超导电路与微波光子耦合和操纵。虽然电路非常适合快速逻辑运算和状态合成，但电信波长光子是量子通信的首选，因为它们与环境的相互作用弱，传输带宽大，对热噪声有弹性。微波与光畴之间的相干换能器将汇集最有前途的系统的优点。电光机械（EOM）系统是连接微波和光域的最佳候选系统之一，因此可以作为未来量子网络的关键组成部分。我有制造和表征微尺度硅EOM系统的经验，该系统的机械运动通过电容耦合到电路，光学通过辐射压力耦合到光子晶体腔。此外，我在理论上首次证明了在这种混合EOM器件中可以产生平稳的，即长寿命的微波光纠缠。该研究项目的重点是开发可与超导处理器集成的量子技术，用于构建大规模量子网络，并最终创建量子互联网。从理论角度，我们将发展光子转换理论，并重点研究利用混合EOM系统实现高效光子转导的新技术。在实验方面，我们将设计，制造和测量样品，以产生微波和光域之间的量子界面。综上所述，在未来五年内，我们的目标是：1)构建片上光微波光子转换器，2)产生微波光子与光子之间的纠缠，3)实现量子态隐形传态。对加拿大的好处：该研究项目将为卡尔加里大学，特别是加拿大在量子信息和量子计算领域的领导者提供新的机会。它将在这一领域建立重要的能力，并为学生提供优秀的培训。此外，它还将促进加拿大各地科学家之间的合作，培养在量子网络领域具有坚实背景的新一代科学家，并通过将技术和知识转移到加拿大工业界，促进与工业界的协同作用。

Summary of the research program: Recent advances in atomic physics, nanotechnology, and material science allow controlling the quantum state of atoms, microscopic and mesoscopic spins, electrical circuits and mechanical oscillators with individual photons, electrons or phonons. Today's major challenge is the design and coherent control of hybrid quantum networks. This will turn quantum engineering into a highly interdisciplinary field of research. One of the most advanced solid-state systems for processing quantum information is based on integrated superconducting circuits coupled and manipulated with microwave photons. While electrical circuits are ideally suited for fast logical operations and state synthesis, telecom wavelength photons are the candidates of choice for quantum communication due to their weak interaction with the environment, large bandwidth of transmission and resiliency to thermal noise. A coherent transducer between the microwave and the optical domains will bring together the advantages of the most promising systems. Electro-Optomechanical (EOM) systems are among one of the best candidates to bridge the microwave and optical domains and therefore can be served as a key ingredient of the future quantum network. I have experience in fabrication and characterization of a microscale silicon EOM system whose mechanical motion is coupled capacitively to an electrical circuit and optically via radiation pressure to a photonic crystal cavity. Besides, I theoretically have shown, for the first time, that the stationary, i.e., long-lived, microwaveoptical entanglement can be generated in such a hybrid EOM device. This research program focuses on developing quantum technology that is integrable with superconducting processors for building large-scale quantum networks and ultimately create quantum internet. From the theoretical perspective, we will develop the theory of the photon conversion and focus on the new techniques to achieve high-efficient photon transduction using hybrid EOM systems. In the experimental front, we will design, fabricate, and measure the samples to generate quantum interface between microwave and optical domains. In summary, during the next five years, we aim to: 1) build on-chip optical-microwave photon converter, 2) generate entanglement between microwave and optical photons, and 3) perform quantum state teleportation. Benefits to Canada: This research program will raise new opportunities to place the University of Calgary and especially Canada among the leaders of the quantum information and quantum computation. It will build significant capacity in this area and provide excellent training for students. Additionally, it will boost the collaborations among scientists throughout Canada, train a new generation of scientists with a solid background in the field of quantum network, and foster the synergy with the industry by transferring the technology and knowledge to the Canadian industry.