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: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=613239
• 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，相对论量子信息（RQI）的领域出现了一个新的高研究强度领域。 RQI将信息理论与现代物理学的两个支柱结合在一起：一般相对论和量子理论。 RQI领域的结果范围从对自然定律（例如黑洞物理学和宇宙学）的新见解一直到量子计算和量子固定通信中的具体应用。特别是，由于理论和技术方面的改进，对量子信息处理中相对论效应的研究越来越重要：量子光学，超导电路和Bose-Einstein冷凝水的实验现在可以探测量子信息的相对影响。分布数百公里的纠缠的协议现在已达到相对论效应变得重要的政权，并且正在开发卫星实验，以衡量对量子纠缠的重力影响。 该提案解决了RQI领域中的一些关键理论和应用问题：在量子信息技术（例如量子密码学或量子计算）中，哪些反应性设置比非相关性具有优势？量子场的波动能否提供量子纠缠的实用且可复制的受控来源？我们可以在超导电路或量子光学设置中使用量子模拟器对早期宇宙物理学进行建模？信息理论可以帮助我们找到量子重力理论吗？ PI的拟议研究在三个主要流中进行了组织。第一个流与量子信息处理相对论效应的基础架构有关，以利用新的纠缠资源，构建新协议并优化量子信息任务的性能。第二个流涉及从量子信息传来的工具到获得有关时空结构以及重力与物质相互作用的知识的应用。第三个流与建议的实验设置有关，在这些设置中，相对论量子效应可以用于实际目的，例如提高计量技术，以提高我们当前传感器在量子光学，温度计，引力波检测和地震学方面的准确性。它也将与相对论量子现象的量子模拟器的设计有关。