A strontium optical lattice clock with $1\times 10^{-17}$ uncertainty and measurement of its absolute frequency

Richard Hobson, William Bowden, Alissa Silva +5

We present a measurement of the absolute frequency of the 5s${}^2$ ${}^1$S${}_0$ to 5s5p ${}^3$P${}_0$ transition in ${}^{87}$Sr, which is a secondary representation of the SI second. We descr…