Photonic Quantum Engineering Testbed

量子技术有望通过利用基本量子物理效应在通信、信息处理和传感领域的新技术应用来彻底改变我们的世界。例如，安全的量子通信，其中固有的安全性由基本原理保证，量子处理器超过经典计算机的性能，以及具有前所未有的灵敏度和功能的量子传感器。为了实现这些技术，基本的量子物理效应，如叠加和纠缠，必须在量子硬件中实现，这需要复杂的量子工程。本重大研究仪器建议书申请配套资金，建立“光子量子工程试验台”。该测试平台为光子量子技术的构建模块和集成电路的工程设计提供了基准测试能力。与此同时，它在量子材料表征、基础量子光学研究和实现分布式量子网络等领域提供了大量新的研究机会。为此，该工具应包括一个配备矢量磁体和光学通道的毫开尔文低温恒温器，并配有用于光学激发的可调谐激光器以及高效的单光子探测器。

Quantum technologies are expected to revolutionize our world by exploiting fundamental quantum physical effects for novel technological applications in the areas of communication, information processing and sensing. Examples include secure quantum communication, where inherent security is guaranteed by fundamental principles, quantum processors exceeding the performance of classical computers, and quantum sensors with unprecedented sensitivity and functionality. To enable these technologies is essential that the fundamental quantum physical effects, such as superposition and entanglement, are made accessible in quantum hardware which requires sophisticated quantum engineering. This major research instrumentation proposal applies for matching funds to set up a "Photonic Quantum Engineering Testbed". This testbed provides benchmarking capabilities for the engineering of building blocks and integrated circuits for photonic quantum technologies. At the same time, it enables a wealth of novel research opportunities in the areas of quantum material characterization, fundamental quantum optical studies and realizing distributed quantum networks. To these ends, this tool shall consist of a millikelvin cryostat equipped with a vector magnet and optical access, complemented with a tuneable laser for optical excitation as well as efficient single-photon detectors.