Improved limits for violations of local position invariance from atomic clock comparisons

R. Lange, N. Huntemann, J. M. Rahm +6

We compare two optical clocks based on the ${}^2$S${}_{1/2}(F=0)\to {}^2$D${}_{3/2}(F=2)$ electric quadrupole (E2) and the ${}^2$S${}_{1/2}(F=0)\to {}^2$F${}_{7/2}(F=3)$ electric octupole (E3)…