Relativistic Quantum Information and Technologies

相对论量子信息与技术

• 批准号: RGPIN-2015-04898
• 负责人: MartinMartinez, Eduardo
• 金额: $ 2.11万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=683231
• 关键词: Relativistic; Quantum; Information; Technologies

Over the past decade, a new field of high research intensity has emerged, the field of Relativistic Quantum Information (RQI). RQI brings together information theory with the two pillars of modern physics: General relativity and quantum theory. The results in the field of RQI range from new insights into the laws of Nature (e.g. black hole physics and cosmology) all the way to concrete applications in quantum computing and quantum-secured communication. In particular, the study of relativistic effects in quantum information processing has recently become more important due to improvements both in theory and in technology: Experiments in quantum optics, superconducting circuits and Bose-Einstein condensates can now probe relativistic influences on quantum information. Protocols that distribute entanglement over hundreds of kilometers are now reaching regimes where relativistic effects are becoming important, and satellite experiments are being developed that will measure gravitational effects on quantum entanglement. ******This proposal addresses some of the key theoretical and applied questions in the field of RQI: Which relativistic settings have an advantage over non-relativistic ones in quantum information technologies such as quantum cryptography or quantum computing? Can the fluctuations of a quantum field provide a practical and replenishable controlled source of quantum entanglement? Can we use quantum simulators in superconducting circuits or quantum optical settings to model early universe physics? Can information theory help us find a theory of quantum gravity?******The PI's proposed research is organized in three major streams. The first stream is concerned with the incorporation of relativistic effects to quantum information processing in order to harness new resources of entanglement, to construct new protocols and to optimize the performance of quantum information tasks. The second stream concerns the application of tools coming from quantum information to garner knowledge about the structure of spacetime and the interaction of gravity with matter. The third stream is concerned with proposing experimental setups where relativistic quantum effects can be harnessed for practical purposes, for instance, to refine metrology techniques in order to increase the accuracy of our current sensors in quantum optics, thermometry, gravitational wave detection and seismology. It will also be concerned with the design of quantum simulators of relativistic quantum phenomena.**

在过去的十年中，一个研究强度很高的新领域——相对论量子信息（RQI）领域应运而生。RQI将信息理论与现代物理学的两大支柱：广义相对论和量子理论结合在一起。RQI领域的成果范围从对自然定律的新见解（例如黑洞物理学和宇宙学）一直到量子计算和量子安全通信的具体应用。特别是，由于理论和技术的进步，量子信息处理中的相对论效应的研究最近变得更加重要：量子光学、超导电路和玻色-爱因斯坦凝聚体的实验现在可以探测相对论对量子信息的影响。将量子纠缠分布到数百公里之外的协议现在已经达到了相对论效应变得重要的程度，并且正在开发卫星实验来测量引力对量子纠缠的影响。******本提案解决了RQI领域的一些关键理论和应用问题：在量子信息技术（如量子密码学或量子计算）中，哪些相对论性设置比非相对论性设置具有优势？量子场的涨落能否提供一种实用的、可补充的、受控的量子纠缠源？我们可以在超导电路或量子光学设置中使用量子模拟器来模拟早期宇宙物理吗？信息理论能帮助我们找到量子引力理论吗？****** PI提议的研究分为三个主要部分。第一个流是关于将相对论效应结合到量子信息处理中，以利用新的纠缠资源，构建新的协议并优化量子信息任务的性能。第二流涉及应用来自量子信息的工具来获取关于时空结构和引力与物质相互作用的知识。第三个方向是提出可以将相对论量子效应用于实际目的的实验装置，例如，改进计量技术，以提高我们目前在量子光学、测温、引力波探测和地震学等领域传感器的精度。它还将涉及相对论性量子现象的量子模拟器的设计