154 citations · 2k across the 52 of their papers we have counts for
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Ytterbium in quantum gases and atomic clocks: van der Waals interactions and blackbody shifts
M. S. Safronova, S. G. Porsev, Charles W. Clark
We evaluated the C_6 coefficients of Yb-Yb and Yb -alkali/group II van der Waals interactions with 2% uncertainty. The only existing results for such quantities are for the Yb-Yb d…
Magic wavelengths for optical cooling and trapping of lithium
M. S. Safronova, U. I. Safronova, Charles W. Clark
Using first-principles calculations, we identify magic wavelengths for the 2s-2p and 2s-3p transitions in lithium. The ns and np atomic levels have the same ac Stark shifts at the…
Study of the correlation effects in Yb^+ and implications for parity violation
S. G. Porsev, M. S. Safronova, M. G. Kozlov
Calculation of the energies, magnetic dipole hyperfine structure constants, E1 transition amplitudes between the low-lying states, and nuclear spin-dependent parity-nonconserving a…
Polarizabilities of Si^{2+}: a benchmark test of theory and experiment
M. S. Safronova, S. G. Porsev, M. G. Kozlov +1
We have calculated electric-dipole polarizabilities of the 3s^2 ^1S_0, 3s3p ^3P_0, and 3s3p ^1P_1 states of the Si^{2+} ion using recently developed configuration interaction + all…
Study of quadrupole polarizabilities with combined configuration interaction and coupled-cluster method
S. G. Porsev, M. S. Safronova, M. G. Kozlov
The recently developed method combining the configuration interaction and the coupled-cluster method was demonstrated to provide accurate treatment of correlation corrections in di…
Anomalously small blackbody radiation shift in Tl+ frequency standard
Z. Zuhrianda, M. S. Safronova, M. G. Kozlov
The operation of atomic clocks is generally carried out at room temperature, whereas the definition of the second refers to the clock transition in an atom at absolute zero. This i…