A. Nishiyama

activity

20202023

most citedSearch for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks

68 citations · 154 across the 4 of their papers we have counts for

collaborators

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3 papers · 1 filter

physics.atom-ph2023★ 6 cited

Observation of the $4 f^{14} 6 s^{2}^{1} S_{0} - 4 f^{13} 5 d 6 s^{2} (J = 2)$ clock transition at 431 nm in $^{171}$ Yb

Akio Kawasaki, Takumi Kobayashi, Akiko Nishiyama +2

We report on the observation of the $4 f^{14} 6 s^{2}^{1} S_{0} - 4 f^{13} 5 d 6 s^{2} (J = 2)$ transition at 431 nm in $^{171}$ Yb by depleting atoms in a magneto-optical trap formed by the $6s^{2…

physics.atom-ph2022★ 68 cited

Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks

Takumi Kobayashi, Akifumi Takamizawa, Daisuke Akamatsu +8

We search for ultralight scalar dark matter candidates that induce oscillations of the fine structure constant, the electron and quark masses, and the quantum chromodynamics energy…

physics.atom-ph2020★ 39 cited

Ultra-high finesse cavity-enhanced spectroscopy for accurate tests of quantum electrodynamics for molecules

M. Zaborowski, M. Słowiński, K. Stankiewicz +11

We report the most accurate measurement of the position of the weak quadrupole S(2) 2-0 line in D $_{2}$ . The spectra were collected with a frequency-stabilized cavity ring-down spect…

Observation of the 4f146s2 1S0​−4f135d6s2(J=2) clock transition at 431 nm in 171Yb

Search for ultralight dark matter from long-term frequency comparisons of optical and microwave atomic clocks

Ultra-high finesse cavity-enhanced spectroscopy for accurate tests of quantum electrodynamics for molecules

Observation of the $4 f^{14} 6 s^{2}^{1} S_{0} - 4 f^{13} 5 d 6 s^{2} (J = 2)$ clock transition at 431 nm in $^{171}$ Yb