Quantum photonics devices for a quantum internet

用于量子互联网的量子光子器件

• 批准号: RGPIN-2020-05462
• 负责人: Jennewein, Thomas
• 金额: $ 5.46万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763012
• 关键词: Quantum; photonics; devices; quantum; internet

The "Quantum Internet" is often considered the future generation of networking, where the shared quantum signals enable applications such as highly secure communications interfacing to remote quantum computers and quantum enhanced metrology. As of today, many different physical approaches are considered for quantum information. While it has yet to be determined which system is best suited to lead the quantum information revolution, it is clear that photons will play an important role in the communication between quantum devices. The photonic based quantum information systems that I plan to study are relevant to quantum communication, quantum sensing and imaging, and also fundamental quantum entanglement experiments. The proposed research devices we will implement will be tested and verified under outdoor conditions. The HQP will have the unique opportunity to perform research related to the Canadian quantum satellite mission called "Quantum Encryption and Science Satellite", and even participate in some of the experiment trials with the satellite, thereby gaining first hand experience in cutting edge optical satellite technology. The core themes of my proposed research are: - To work on highly stable and compact systems for the photon generation and photon detection for my research ground station located at Waterloo. This includes an entangled photon source with asymmetric wavelengths, and novel photon detectors based on array devices which could offer single-photon imaging but also photon number resolution.  These devices will be tested and verified outdoors, and if possible, will demonstrate interfacing a ground networks and ground based sources with the satellite based receiver node. - To implement and study strong optical nonlinearities suitable for few photon interactions, such as photon wavelength transducers and photon heralding. I plan to study several materials including waveguides, and micro-optical photonics such as micro-ring resonators, using strong nonlinear optic materials. These photon transducers will be important enablers in quantum communication networks including translating photons from the ~1550 nm wavelength optimal for fibre-optic networks with the ~790nm nm wavelength used in the ground to satellite link. I will also study photon heralding schemes which could enable loophole free Bell-tests over large distances, useful for highly secure quantum key distribution with device independence.

“量子互联网”通常被认为是未来一代的网络，其中共享的量子信号可以实现诸如与远程量子计算机和量子增强计量的高度安全通信接口等应用。到目前为止，许多不同的物理方法被认为是量子信息。虽然还没有确定哪种系统最适合领导量子信息革命，但很明显，光子将在量子设备之间的通信中发挥重要作用。我计划研究的基于光子的量子信息系统与量子通信、量子传感和成像以及基本的量子纠缠实验有关。我们将实施的拟议研究设备将在室外条件下进行测试和验证。HQP将有独特的机会进行与称为“量子加密和科学卫星”的加拿大量子卫星使命相关的研究，甚至参与卫星的一些实验试验，从而获得尖端光学卫星技术的第一手经验。我提出的研究的核心主题是：-为我位于滑铁卢的研究地面站的光子产生和光子探测工作的高度稳定和紧凑的系统。这包括具有不对称波长的纠缠光子源，以及基于阵列设备的新型光子探测器，该阵列设备可以提供单光子成像以及光子数分辨率。 这些设备将在室外进行测试和验证，如果可能的话，将演示地面网络和地面源与卫星接收器节点的接口。- 实现和研究适用于少光子相互作用的强光学非线性，如光子波长传感器和光子预报器。我计划研究几种材料，包括波导和微光学光子学，如微环谐振器，使用强非线性光学材料。这些光子换能器将成为量子通信网络中的重要推动者，包括将光纤网络最佳波长约1550 nm的光子转换为地面到卫星链路中使用的约790 nm波长。我还将研究光子预示方案，它可以在大距离上实现无漏洞的贝尔测试，这对于具有设备独立性的高度安全的量子密钥分发非常有用。