%0 Journal Article %J arXiv:1611.00797 %D 2016 %T Steady-state superradiance with Rydberg polaritons %A Zhe-Xuan Gong %A Minghui Xu %A Michael Foss-Feig %A James K. Thompson %A Ana Maria Rey %A Murray Holland %A Alexey V. Gorshkov %X
A steady-state superradiant laser can be used to generate ultranarrow-linewidth light, and thus has important applications in the fields of quantum information and precision metrology. However, the light produced by such a laser is still essentially classical. Here, we show that the introduction of a Rydberg medium into a cavity containing atoms with a narrow optical transition can lead to the steady-state superradiant emission of ultranarrow-linewidth