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-electromechanics, and electro-optics. We briefly discuss relevant metrics from the point of view of different applications, as well as challenges for the future.
@article{arxiv.1910.04821,
title = {Perspectives on quantum transduction},
author = {Nikolai Lauk and Neil Sinclair and Shabir Barzanjeh and Jacob P. Covey and Mark Saffman and Maria Spiropulu and Christoph Simon},
journal= {arXiv preprint arXiv:1910.04821},
year = {2021}
}