Origin of the inhomogeneous linewidth in a solid state ${}^{229}$Th:CaF${}_2$ nuclear clock

Kai Li, Tian Ooi, Jack F. Doyle +7

Narrow linewidth (high-Q) quantum discriminators are essential for realizing solid-state ${}^{229}$Th nuclear clocks, yet the observed transition linewidths remain at the tens-to-hun…