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.

约克大学正在为量子通信中心在轨演示器开发基于连续可变量子密钥分配（CVQKD）的量子通信有效载荷和接收器。目前的有效载荷和接收机是实验概念，用于测试和演示空-地光链路上CVQKD的可行性。各种优化确实提高了传输距离以及在自由空间信道上的密钥分发速率。该项目旨在优化CVQKD系统及其组件在空间量子通信中的性能。本论文的主要研究内容如下：第一年：CVQKD系统和空间量子通信技术的文献综述。了解量子灵敏检测，实现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，分析影响信号生成和检测的各种噪声源，并确定可能的优化领域;第2年）从理论上验证优化程序，估计有效载荷和接收器的性能改进，并开发原理验证演示器;第3年）在实验室和现场测试优化的空间CVQKD系统。在项目期间，基于理论分析和实验验证，多篇论文将在同行评审期刊上发表。该项目与英国国家量子技术计划保持一致，并在EPSRC量子技术研究领域的范围内。该项目与RAL Space合作，后者是量子卫星在轨演示器的量子通信中心合作伙伴。该项目的主要研究地点是RAL Space，并由约克积极进行学术监督。