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Frequency evaluation of the doubly forbidden transition in bosonic Yb
N. Poli, Z. W. Barber, N. D. Lemke +11
We report an uncertainty evaluation of an optical lattice clock based on the transition in the bosonic isotope Yb by use of magnetically induced…
Observation of the 1S0 - 3P0 clock transition in 27Al+
T. Rosenband, P. O. Schmidt, D. B. Hume +8
We report for the first time, laser spectroscopy of the 1S0 - 3P0 clock transition in 27Al+. A single aluminum ion and a single beryllium ion are simultaneously confined in a linea…
Blackbody radiation shift of the 27Al+ 1S0 - 3P0 transition
T. Rosenband, W. M. Itano, P. O. Schmidt +4
The differential polarizability, due to near-infrared light at 1126 nm, of the 27Al+ 1S0 -> 3P0 clock transition is measured to be 4πε_0 x (1.6 +/- 0.5) x 10^{-31} m^3. This measur…
Testing the stability of fundamental constants with the 199Hg+ single-ion optical clock
S. Bize, S. A. Diddams, U. Tanaka +10
Over a two-year duration, we have compared the frequency of the 199Hg+ 5d106s 2S 1/2 (F=0)<-> 5d9 6s2 2D 5/2 (F=2) electric-quadrupole transition at 282 nm with the frequency of th…