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。当前的有效载荷和接收器是为测试和论证空地光链路上的CVQKD的可行性而开发的实验概念。各种优化确实改善了自由空间信道上的传输距离以及密钥分发速率。该项目旨在优化用于空间量子通信的CVQKD系统及其组件的性能。主要研究内容如下：第一年，对CVQKD系统和空间量子通信技术进行了文献综述。了解量子灵敏检测，实现信号产生和检测的实验装置。这包括了解有效载荷和接收器的光学特性，描述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，并开发原理演示器；第3年)在实验室和野外测试优化的空间CVQKD系统。在理论分析和实验验证的基础上，多份手稿的目标是在项目期间在同行评议的期刊上发表。该项目与英国国家量子技术倡议相一致，并在EPSRC量子技术研究领域内。该项目是与Ral Space合作的，Ral Space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在雷尔空间，约克大学积极进行学术监督。