Quantum Communications using integrated photonic devices

使用集成光子器件的量子通信

• 批准号: 2453312
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2453312
• 关键词: Quantum; Communications; using; integrated; photonic

Quantum information processing offers a powerful alternative to conventional technologies. Quantum communications offer fundamentally secure encryption protocols and enable the distributed operation of quantum states for applications in computing, sensing and simulations. Integrated photonic devices are a robust technological platform for the realisation of complex linear optic circuits.This PhD project aims to further the development and understanding of quantum communication technologies based on integrated photonic devices. There are two fundamental areas that will be targeted: first the exploitation of d-dimensional photonic quantum states for quantum communication applications and entanglement distribution, and second the implementation of Measurement-Device-Independent QKD protocols on-chip using locally-developed quantum nodes for multiple users. Additionally, the project will explore the use of multi-core optical fibres for signal stabilisation, as well as free-space multi-dimensional quantum state transmission using a quantum lantern approach, based on space multiplexing of single photon states.The PhD project will be embedded in the existing EU project SQUARE for the development of quantum networks based on the distribution of high-dimensional quantum states, and the Quantum Communications HUB, a national multi-institutional initiative to develop quantum communications systems. These on-going research projects are hosted at Bristol in the QETLabs laboratories and are supported by multiple (4) postdoctoral researchers and students (4). The experimental facilities comprise 3 experimental automated and semi-automated photonic chip setups, as well as access to shared photonic equipment such as lasers, single photon detectors, power meters and fibre network. There are tens of copies of photonic chips used for quantum state generation and analysis, with new devices to be obtained through the existing grants in the coming years.

量子信息处理提供了传统技术的强大替代方法。量子通信提供从根本上安全的加密协议，并启用量子状态在计算，传感和模拟中应用的分布式操作。集成的光子设备是实现复杂线性光学电路的强大技术平台。该博士项目旨在进一步基于集成光子设备的量子通信技术的开发和理解。有两个基本区域将被定为目标：首先，使用本地开发的量子节点在芯片上对D维光子量子量子进行用于量子通信应用和纠缠分布的量子量子状态和纠缠分布。此外，该项目将基于单个光子状态的空间多路复用，将探索多核光纤进行信号稳定以及使用量子灯笼方法的自由空间多维量子状态传输。博士学位项目将嵌入现有的欧盟项目平方，以基于国家量化量的量化量的量化量的量化量，并基于量子量的量化量的分布，并基于量子量的分布量，并将其分布量化量子量。开发量子通信系统的主动性。这些正在进行的研究项目由Qetlabs实验室的布里斯托尔托管，并得到了多（4）个博士后研究人员和学生的支持（4）。实验设施包括3个实验性自动化和半自动化的光子芯片设置，以及访问共享光子设备，例如激光器，单个光子探测器，动力计和光纤网络。有数十本用于量子状态生成和分析的光子芯片副本，未来几年可以通过现有赠款获得新的设备。