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Determination of the absolute microwave frequency of laser-cooled ^{171}\hbox {Yb}^+ |
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| Authors: | Piyaphat Phoonthong Michiaki Mizuno Kohta Kido Nobuyasu Shiga |
| Institution: | 1. National Institute of Metrology Thailand (NIMT), 3/4-5, Moo 3, Klong 5, Klong Luang, Pathumthani, 12120, Thailand 2. National Institute of Information and Communications Technology (NICT), 4-2-1 Nukui-Kitamachi, Koganei, Tokyo, 184-8795, Japan 3. PRESTO, Japan Science and Technology (JST), 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan |
| Abstract: | \(^{171}\hbox {Yb}^+\) ions confined within a linear quadrupole trap were laser cooled to below 1 K. The microwave frequency of the hyperfine splitting of the ground state was continuously measured over 6 h. Frequency was corrected by evaluating the systematic shifts in each clock measurement. The absolute microwave frequency was determined as 12 642 812 118.468 2(4) Hz, in strong agreement with previously reported measurements. |
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