85 citations · 118 across the 2 of their papers we have counts for
5 papers · 1 filter
Absolute frequency of at uncertainty by reference to remote Primary Frequency Standards
Nils Nemitz, Tadahiro Gotoh, Fumimaru Nakagawa +4
The optical lattice clock NICT-Sr1 regularly reports calibration measurements of the international timescale TAI. By comparing measurement results to the reports of eight Primary F…
Frequency ratio of an In ion clock and a Sr optical lattice clock
Nozomi Ohtsubo, Ying Li, Nils Nemitz +4
We report on the first frequency ratio measurement of an In+ single ion clock and a Sr optical lattice clock. A hydrogen maser serves as a reference oscillator to me…
Modeling light shifts in optical lattice clocks
Nils Nemitz, Asbjørn Arvad Jørgensen, Ryotatsu Yanagimoto +2
We present an extended model for the lattice-induced light shifts of the clock frequency in optical lattice clocks, applicable to a wide range of operating conditions. The model ex…
Decomposed description of Ramsey spectra under atomic interactions
Ryotatsu Yanagimoto, Nils Nemitz, Filippo Bregolin +1
We introduce a description of Ramsey spectra under atomic interactions as a sum of decomposed components with differing dependence on interaction parameters. This description enabl…
Frequency ratios of Sr, Yb and Hg based optical lattice clocks and their applications
Masao Takamoto, Ichiro Ushijima, Manoj Das +8
This article describes the recent progress of optical lattice clocks with neutral strontium (Sr), ytterbium (Yb) and mercury (Hg) atoms. In particular, we pr…