Blackbody Radiation Shifts in an Optical In+/Yb+ Ion Clock

Explore the cutting-edge research on blackbody radiation shifts in optical ion clocks presented by Tanja Mehlstäubler at the Workshop on "Blackbody Radiation Induced Effects and Phenomena." Delve into the innovative use of ion Coulomb crystals for precision spectroscopy, focusing on the In+/Yb+ multi-ion clock system. Learn about the advantages of sympathetic cooling and the control of systematic shifts using dual-species ion crystals. Discover the exceptional properties of 115In+ ions, including their low sensitivity to ac Stark shifts from blackbody radiation. Examine the progress towards achieving optical clock operation with a total relative uncertainty of 10-19, including advancements in controlling the external thermal environment and precise determination of differential polarizability. Gain insights into the novel quench cooling method applied to Yb+ ions for accurate measurement of Stark shifts and differential polarizability in In+ ions. This 27-minute talk provides a comprehensive overview of state-of-the-art techniques in atomic clock development and precision metrology.