Telecom-band photonic quantum memories for networks

用于网络的电信频段光子量子存储器

• 批准号: 2889915
• 金额: --
• 依托单位: Imperial College London
• 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-2889915
• 关键词: Telecom; band; photonic; quantum; memories

The quantum internet of the future will require the capability to generate, store and retrieve entangled photons efficiently and on demand. This project will work on quantum light sources, including quantum dot single photon sources, and nonlinear two-mode squeezed state sources, with a focus on sources that emit at telecommunication wavelengths. This project will also explore ensemble-based atomic memories operating in the telecommunication band which can store and retrieve these quantum states of light. These two components represent the key building blocks of a scalable quantum network. There are several key challenges that we will address in this project, including matching of the operational wavelengths and bandwidths of the photon sources and memories; extending the lifetime of storage in the quantum memories; reducing excess noise in both systems; and improving the total system end-to-end efficiency. We will also explore other applications of the memory such as acting a coherent filter for improving the quality of the retrieved photons, and as an element of a physical neural network.

未来的量子互联网将需要能够有效地按需生成、存储和检索纠缠光子。该项目将致力于量子光源，包括量子点单光子源和非线性双模压缩态源，重点是在电信波长发射的源。该项目还将探索在电信波段运行的基于集合体的原子存储器，它可以存储和检索这些光的量子态。这两个组件代表了可扩展量子网络的关键构建块。我们将在这个项目中解决几个关键挑战，包括光子源和存储器的工作波长和带宽的匹配;延长量子存储器的存储寿命;减少两个系统中的过量噪声;提高整个系统的端到端效率。我们还将探索存储器的其他应用，例如充当相干滤波器以提高检索光子的质量，以及作为物理神经网络的元素。