Superconducting Electro-Optomechanical Photon Converter

研究计划摘要： 原子物理、纳米技术和材料科学的最新进展允许用单个光子、电子或声子来控制原子的量子状态、微观和介观自旋、电路和机械振荡器。今天的主要挑战是混合量子网络的设计和相干控制。这将把量子工程变成一个高度交叉的研究领域。处理量子信息的最先进的固态系统之一是基于与微波光子耦合并操纵的集成超导电路。虽然电路非常适合于快速逻辑运算和状态合成，但电信波长光子由于其与环境的弱相互作用、较大的传输带宽和对热噪声的弹性而成为量子通信的候选方案。微波和光域之间的相干换能器将汇集最有希望的系统的优点。电光机械(EOM)系统是连接微波和光学领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，其机械运动通过电容耦合到电路，并通过辐射压力光学耦合到光子晶体腔。此外，我第一次从理论上证明了在这种混合EOM器件中可以产生稳定的、即长寿命的微波光学纠缠。 这项研究计划专注于开发可与超导处理器集成的量子技术，以构建大规模量子网络，并最终创建量子互联网。从理论的角度，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换的新技术。在实验前沿，我们将设计、制作和测量样品，以产生微波和光域之间的量子界面。综上所述，在接下来的五年里，我们的目标是：1)建立片上光-微波光子转换器，2)产生微波和光光子之间的纠缠，3)实现量子态隐形传态。 给加拿大带来的好处： 这项研究计划将带来新的机会，使卡尔加里大学，特别是加拿大，跻身量子信息和量子计算的领先者之列。它将在这一领域建立重要的能力，并为学生提供出色的培训。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扎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行业来促进与行业的协同效应。

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.