Optimization is Space Quantum Communications

优化是空间量子通信

• 批准号: 2871752
• 金额: --
• 依托单位: University of York
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2871752
• 关键词: Optimization; Space; Quantum; Communications

The University of York is developing a quantum communication payload and a receiver, based on continuous variable quantum key distribution (CVQKD ), for the quantum communications hub in-orbit demonstrator. The current payload and receiver are experimental concepts developed for testing and demonstrating the feasibility of CVQKD over space-to-earth optical link. Various optimization indeed improves the transmission distances as well as the key distribution rates over the free-space channel. This project aims to optimise the performance of the CVQKD system and its components for space quantum communication. The objectives of the research are categorized as follows: Year 1) literature review on CVQKD system and space quantum communication technology. Understand quantum sensitive detection, realizing experimental setups for signal generation and detection. This includes understanding the payload and receiver optics, characterise various sources of noise that affect the signal generation and detection, and identifying possible areas of optimization; Year 2) theoretically verify the optimization procedures and estimate the performance improvements on payload and receiver and develop a proof of principle demonstrator; year 3) test the optimized space CVQKD system in lab and in field. Multiple manuscripts are aiming to be published in peer-reviewed journals over the project duration, based on theoretical analysis and experimental verification. The project is aligned with UK National Quantum Technology initiatives and within the scope of EPSRC research areas of quantum technology. This project is in collaboration with RAL Space, which is a quantum communications hub partner for the quantum satellite in-orbit demonstrator. The primary research location of the project is at RAL Space with active academic supervision from York.

约克大学（University of York University of York）正在开发量子通信有效载荷和基于连续变量量子密钥分布（CVQKD）的接收器，用于量子通信枢纽内部的轨道演示器。当前有效载荷和接收器是用于测试和证明CVQKD在太空光学链路上的可行性的实验概念。各种优化确实改善了自由空间通道上的传输距离以及关键分布速率。该项目旨在优化CVQKD系统的性能及其用于空间量子通信的组件。研究的目标分类如下：第1年）有关CVQKD系统和空间量子通信技术的文献综述。了解量子敏感检测，实现用于信号产生和检测的实验设置。这包括了解有效载荷和接收器光学器件，表征影响信号生成和检测的各种噪声来源，并确定可能的优化领域；第2年）理论上验证优化程序并估算有效载荷和接收者的绩效提高，并开发了原理演示者的证明； 3年级）测试实验室和现场中优化的空间CVQKD系统。基于理论分析和实验验证，多个手稿的目的是在项目持续时间内发表在同行评审期刊上。该项目与英国国家量子技术计划以及EPSRC研究领域的范围内。该项目与RAL Space合作，Ral Space是量子卫星内部演示器的量子通信枢纽合作伙伴。该项目的主要研究位置是在约克（York）的积极学术监督下在RAL空间。