COMPHORT

康普霍尔特

• 批准号: EP/Z000491/1
• 负责人: Ruth Oulton
• 金额: $ 33.13万
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2024
• 资助国家: 英国
• 起止时间: 2024 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FZ000491%2F1
• 关键词: COMPHORT

An ideal single-photon source will produce a single-photon triggered by the push of a button. Remarkable progress has been made in recent years to the point where photons from such sources can be delivered to an end user with a probability exceeding 50%. The downside to current state of the art single-photon source technology is the high barrier to entry: sources are triggered by pulsed laser systems, operate at cryogenic temperatures, and frequently require employment of specialist staff all of which exacerbates costs. The result is that for many applications, potential users opt for simpler and more cost-effective probabilistic sources, where the single photon probability is capped at <10%.COMPHORT tackles this challenge by developing a user-friendly "plug & play" device that will feature single-photon generation probabilities exceeding 80% without requiring bulky laser systems or cryogenics. To achieve this, we take advantage of the exceptional optical properties of single photons generated by quantum emitters in hexagonal boron nitride, when operated under ambient conditions (20 degC). We will then enhance this by directly integrating emitters into bespoke open optical cavities, which will be packaged into a robust assembly to provide reliable operation. Further, a pump LED will be monolithically integrated into our open cavity design to trigger single-photon emission, providing the end user with a simplified electrically driven device. Both the quantum emitters and optical cavity can be engineered to suit a range of quantum applications (from communications to metrology or imaging). To showcase the suitability of our technology for real-world applications, we will implement free-space quantum communication protocols at the laboratory-scale and in a metropolitan free-space link in Berlin city. This quantum application is crucial to interconnect networks where optical fibers are not available (such as disaster zones, or field hospitals) and/or a changing geo-localisation between nodes is required (autonomous car, aeroplanes, drones, etc). The project will develop in close collaboration with the SME partners Nanoplus GmbH and QLocked, bridging the connection between our technology outcomes and the quantum photonics market. The outputs of COMPHORT are aimed at providing Europe with a valuable sovereign technology in an increasingly competitive quantum-enabled world economy

一个理想的单光子源将产生一个单光子触发按下一个按钮。近年来已经取得了显着的进展，从这样的源的光子可以提供给最终用户的概率超过50%的点。目前最先进的单光子源技术的缺点是进入壁垒高：源由脉冲激光系统触发，在低温下操作，并且经常需要雇用专业人员，所有这些都加剧了成本。其结果是，对于许多应用，潜在用户选择更简单和更具成本效益的概率源，其中单光子概率上限<10%。COMPHORT通过开发一种用户友好的“即插即用”设备来应对这一挑战，该设备的单光子生成概率超过80%，而无需笨重的激光系统或低温技术。为了实现这一目标，我们利用了在环境条件下（20摄氏度）操作时，由六方氮化硼中的量子发射器产生的单光子的特殊光学特性。然后，我们将通过将发射器直接集成到定制的开放式光学腔中来增强这一点，这些光学腔将被封装到一个坚固的组件中，以提供可靠的操作。此外，泵浦LED将单片集成到我们的开放腔设计中，以触发单光子发射，为最终用户提供简化的电驱动设备。量子发射器和光学腔都可以设计成适合一系列量子应用（从通信到计量或成像）。为了展示我们的技术对现实世界应用的适用性，我们将在实验室规模和柏林的大都市自由空间链路中实现自由空间量子通信协议。这种量子应用对于光纤不可用的互连网络（如灾区或野战医院）和/或需要节点之间不断变化的地理位置（自动驾驶汽车，飞机，无人机等）至关重要。该项目将与中小企业合作伙伴Nanoplus GmbH和QLocked密切合作，在我们的技术成果与量子光子学市场之间建立联系。COMPHORT的产出旨在为欧洲提供一个有价值的主权技术，在竞争日益激烈的量子使能的世界经济中