QUANTUM: Collaborative Research: On-Chip Solid-State Cavity QED for Quantum Information Science

最近在量子信息科学方面的研究活动提高了我们对量子力学的理解，并提出了量子信息处理中使用的基本组件。量子退相干是影响按需单光子源和量子节点等量子信息处理设备质量的主要因素。该团队开展了一项跨学科的合作研究项目，旨在通过最先进的纳米制造和计算建模来提高单量子点光子晶体腔系统的量子相干性。该团队将在芯片上构建固态腔量子电动力学系统，该系统结构紧凑，可在半导体晶圆上扩展。硬件基本上是由紧凑腔和平面波导组成的集成光学，因此光子晶体将提供构建紧凑集成量子信息处理芯片的实用方法。在光子晶体中构建这样的终极光子定位系统，将为相关科学和工程领域开辟许多可能性，正如半导体晶体中的工程电子带所做的那样。该团队在解决计算和实验挑战方面的跨学科努力将促进纳米技术在量子信息科学领域的全部潜力的实现。高量子相干元件的开发还将推动WDM芯片、光学逻辑电路、芯片上传感器等其他应用技术的发展，并增强对光本质的认识。

Recent research activities in quantum information science have advanced our understanding of quantum mechanics and proposed essential components used in quantum information processing. Quantum decoherence is a major factor affecting the quality of quantum information processing devices, including on-demand single photon sources and quantum nodes. The team conducts a collaborative and interdisciplinary research program for improving the quantum coherence of single-quantum-dot photonic-crystal-cavity systems with the help of state-of-the-art nanofabrication and computational modeling. On-chip solid-state cavity quantum electrodynamics systems, to be constructed by the team, are compact and scalable on a semiconductor wafer. The hardware is essentially integrated optics consisting of compact cavities and planar waveguides, so photonic crystals will provide a practical means of constructing compact integrated quantum information-processing chips. Constructing such ultimate photon localization systems in photonic crystals will open up many possibilities in relevant fields in both science and engineering, much as engineering electronic bands in semiconductor crystals has done. The team's interdisciplinary efforts to resolve the computational and experimental challenges will facilitate the realization of the full potential of nanotechnology in the quantum information science field. The development of high quantum-coherence components will also advance technology of other applications including WDM chips, optical logic circuits, and sensors on a chip, and enhance the understanding of the nature of light.