Rydberg Spectroscopy in an Optical Lattice: Blackbody Thermometry for Atomic Clocks

Vitali D. Ovsiannikov, Andrei Derevianko, Kurt Gibble

We show that optical spectroscopy of Rydberg states can provide accurate {\em in situ} thermometry at room-temperature. Transitions from a metastable state to Rydberg states with p…