134 citations · 151 across the 5 of their papers we have counts for
5 papers
Prevention of Yb adsorption by paraffin coating
Kanta Asakawa, Taichi Kobayashi, Masami Yasuda +2
Ytterbium (Yb) is used in cold-atom systems, including magneto-optical traps and optical lattice clocks. However, the long-term operation of such systems may be associated with sub…
Improved absolute frequency measurement of Yb at NMIJ with uncertainty below
Takumi Kobayashi, Akiko Nishiyama, Kazumoto Hosaka +6
We report improved absolute frequency measurement of the SP transition of Yb at National Metrology Institute of Japan (NMIJ) by comparing the $^{171}…
Generation of a precise time scale assisted by a near-continuously operating optical lattice clock
Takumi Kobayashi, Daisuke Akamatsu, Kazumoto Hosaka +8
We report on a reduced time variation of a time scale with respect to Coordinated Universal Time (UTC) by steering a hydrogen-maser-based time scale with a near-continuously operat…
Isotope-shift analysis with the transition in ytterbium
Akio Kawasaki, Takumi Kobayashi, Akiko Nishiyama +2
Measurements of isotope shifts have recently been attracting considerable attention due to their potentials in searching for new forces. We report on the isotope shifts of the $4f^…
Roadmap towards the redefinition of the second
N. Dimarcq, M. Gertsvolf, G. Mileti +34
This paper outlines the roadmap towards the redefinition of the second, which was recently updated by the CCTF Task Force created by the CCTF in 2020. The main achievements and the…