The new paper from Takahashi Lab. has been published in Physical Review Letters.
“Observation of an Inner-Shell Orbital Clock Transition in Neutral Ytterbium Atoms”, Taiki Ishiyama, Koki Ono, Tetsushi Takano, Ayaki Sunaga, and Yoshiro Takahashi, Phys. Rev. Lett. 130, 153402
*This work was partially supported by CAO/JST Moonshot Research and Development Program.