Quantum Waveguides for Indistinguishable Single Photon Sources 2 (QWISPS-2)

用于不可区分单光子源的量子波导 2 (QWISPS-2)

• 批准号: 102668
• 金额: $ 21.93万
• 依托单位: COVESION LIMITED
• 依托单位国家: 英国
• 项目类别: Feasibility Studies
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=102668
• 关键词: Quantum; Waveguides; Indistinguishable; Single; Photon

Covesion Ltd and The University of Southampton plan to extend our collaborative feasibility study investigatingthe use of periodically-poled lithium niobate crystals in single-photon sources for applications exploitingquantum entanglement. Laser pulses contain different numbers of photons and in our crystals these photonscan be split into pairs; the laws of physics state that if one of these photons is created then the other must alsoexist. Based on this premise, detecting one paired photon signals the presence of the other, providing apredictable source of single photons that can be used for computation. In this project, we seek to reduce themanufacturing tolerances required to generate similar photons from different sources and our objective is toprove our new approach across multiple devices. This is an important step in enabling scalable quantumapplications where many predictable photons with the same attributes are needed in parallel, such as quantumcomputing.

Covesion有限公司和南安普顿大学计划扩展我们的合作可行性研究，以确定在单光子源中使用极化的锂酸盐晶体，以开发量子纠缠的应用。激光脉冲包含不同数量的光子，在我们的晶体中，这些光子可以被分成两对;物理定律表明，如果其中一个光子被创造出来，那么另一个也必须存在。基于这一前提，探测到一对光子就意味着另一对光子的存在，从而提供了一个可用于计算的单光子源。在这个项目中，我们试图减少从不同来源产生类似光子所需的制造公差，我们的目标是在多个设备上证明我们的新方法。这是实现可扩展量子应用的重要一步，其中并行需要许多具有相同属性的可预测光子，例如量子计算。