76 citations · 129 across the 2 of their papers we have counts for
2 papers
physics.atom-ph2014★ 53 cited
Direct comparison of optical lattice clocks with an intercontinental baseline of 9 000 km
H. Hachisu, M. Fujieda, S. Nagano +9
We have demonstrated a direct frequency comparison between two lattice clocks operated in intercontinentally separated laboratories in real time. Two-way satellite…
physics.atom-ph2012★ 76 cited
Direct comparison of a Ca+ single ion clock against a Sr optical lattice clock
Kensuke Matsubara, Hidekazu Hachisu, Ying Li +7
Optical frequency comparison of the 40Ca+ clock transition ν_{Ca} (2S1/2-2D5/2, 729nm) against the 87Sr optical lattice clock transition ν_{Sr}(1S0-3P0, 698nm) has resulted in a fr…