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

量子信息科学的最新研究活动促进了我们对量子力学的理解，并提出了用于量子信息处理的基本组件。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器件质量的主要因素。该团队进行了一项合作和跨学科的研究计划，以提高单量子点光子晶体腔系统的量子相干性，并借助最先进的纳米纤维和计算建模。由该团队构建的片上固态腔量子电动力学系统在半导体晶片上紧凑且可扩展。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一种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局域化系统将在科学和工程的相关领域开辟许多可能性，就像在半导体晶体中工程电子能带一样。该团队解决计算和实验挑战的跨学科努力将有助于实现纳米技术在量子信息科学领域的全部潜力。高量子相干元件的发展还将推动其他应用的技术发展，包括WDM芯片、光学逻辑电路和芯片上的传感器，并增强对光本质的理解。

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.