The rise of quantum information science has provided new perspectives on quantum mechanics, as well as a common language for quantum engineering. The focus on platforms for the manipulation and processing of quantum information bridges between different research areas in physics as well as other disciplines. Such a crossover between borders is well embodied by the development of hybrid quantum systems, where heterogeneous physical systems are combined to leverage their individual strengths for the implementation of novel functionalities. In the microwave domain, the hybridization of various quantum degrees of freedom has been tremendously helped by superconducting quantum circuits, owing to their large zero-point field fluctuations, small dissipation, strong nonlinearity and design flexibility. These efforts take place by expanding the framework of circuit quantum electrodynamics. Here, we review recent research on the creation of hybrid quantum systems based on circuit quantum electrodynamics, encompassing mechanical oscillators, quantum acoustodynamics with surface acoustic waves, quantum magnonics and coupling between superconducting circuits and ensembles or single spins.

量子信息科学的兴起为量子力学以及量子工程的通用语言提供了新的视角。物理和其他学科的不同研究领域之间着重于操纵和处理量子信息桥梁的平台。混合量子系统的发展很好地体现了这种边界之间的交叉，在混合量子系统中，异构物理系统被组合起来以利用其各自的优势来实现新颖的功能。在微波领域，由于超导量子电路的零点场波动大，耗散小，非线性强且设计灵活，它们极大地帮助了各种量子自由度的杂交。这些努力是通过扩大电路量子电动力学的框架来进行的。在这里，我们回顾基于电路量子电动力学的混合量子系统创建的最新研究，包括机械振荡器，具有表面声波的量子声动力学，量子磁学和超导电路与集合体或单自旋之间的耦合。