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physics.atom-ph2008★ 46 cited
New Measurement of the 2S Hyperfine Interval in Atomic Hydrogen
N. Kolachevsky, A. Matveev, J. Alnis +3
An optical measurement of the 2S hyperfine interval in atomic hydrogen using two-photon spectroscopy of the 1S-2S transition gives a value of 177 556 834.3(6.7) Hz. The uncertainty…
physics.atom-ph2008★ 62 cited
Frequency Metrology on single trapped ions in the weak binding limit: The 3s1/2-3p3/2 transition in 24-Mg+
M. Herrmann, V. Batteiger, S. Knünz +3
We demonstrate a method for precision spectroscopy on trapped ions in the limit of unresolved motional sidebands. By sympathetic cooling of a chain of crystallized ions we suppress…