Quantum Waveguides for Indistinguishable Single-Photon Sources (QWISPS)

用于不可区分单光子源的量子波导 (QWISPS)

• 批准号: 131877
• 金额: $ 14.07万
• 依托单位: COVESION LIMITED
• 依托单位国家: 英国
• 项目类别: Feasibility Studies
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=131877
• 关键词: Quantum; Waveguides; Indistinguishable; Single; Photon

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

Covesion有限公司和南安普顿大学计划进行一项合作可行性研究，以研究在利用量子纠缠的单光子源中使用极化的锂酸盐晶体。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，检测到一对光子就表明另一对光子的存在，从而提供了可用于计算的单光子的可预测来源。在这个项目中，我们寻求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，在这些应用中，并行需要许多具有相同属性的可预测光子，例如量子计算。