193 citations · 3.1k across the 84 of their papers we have counts for
4 papers · 1 filter
Calculation of the dependence of transition frequencies on the fine structure constant and the search for variation of alpha in QSO spectra
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We calculate the dependence of atomic transition frequencies on the fine structure constant, , for some ions of Ti, Mn, Na, C, and O. The results of these calculati…
Laboratory spectroscopy and the search for space-time variation of the fine structure constant using QSO spectra
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +4
Theories unifying gravity with other interactions suggest spatial and temporal variation of fundamental ``constants'' in the Universe. A change in the fine structure constant, alph…
Space-time variation of the fine structure constant and evolution of isotope abundances
M. G. Kozlov, V. A. Korol, J. C. Berengut +2
At present several groups are analyzing astrophysical data in a search for time-variation of the fine structure constant . Here we discuss how to exclude systematic effects caus…
The alpha-dependence of transition frequencies for some ions of Ti, Mn, Na, C, and O, and the search for variation of the fine structure constant
J. C. Berengut, V. A. Dzuba, V. V. Flambaum +1
We use the relativistic Hartree-Fock method, many-body perturbation theory and configuration-interaction method to calculate the dependence of atomic transition frequencies on the…