Quantum transduction, the process of converting quantum signals from one form of energy to another, is an important area of quantum science and technology. The present perspective article reviews quantum transduction between microwave and optical photons, an area that has recently seen a lot of activity and progress because of its relevance for connecting superconducting quantum processors over long distances, among other applications. Our review covers the leading approaches to achieving such transduction, with an emphasis on those based on atomic ensembles, opto-electro-mechanics, and electro-optics. We briefly discuss relevant metrics from the point of view of different applications, as well as challenges for the future.

中文翻译：

---

量子转导的观点

量子转导是将量子信号从一种能量形式转换为另一种能量的过程，是量子科学和技术的重要领域。本透视文章回顾了微波与光子之间的量子转导，该领域最近因其与长距离连接超导量子处理器的相关性以及其他应用而获得了很大的发展。我们的综述涵盖了实现此类转导的主要方法，重点是基于原子团，光电机械和光电的方法。我们从不同应用程序的角度简要讨论了相关指标，以及对未来的挑战。