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1 Blackbody Radiation Shifts and Theoretical Contributions to Atomic Clock Research

By M. S. Safronova, Dansha Jiang, Bindiya Arora, Charles W. Clark, M. G. Kozlov, U. I. Safronova and W. R. Johnson


Abstract — A review of theoretical calculations of black-body radiation (BBR) shifts in various systems of interest to atomic clock research in presented. Calculations for monovalent systems, such as Ca +, Sr +, and Rb are carried out using a relativistic all-order single-double method, where all single and double excitations of the Dirac-Fock wave function are included to all orders of perturbation theory. A recently developed method for accurate calculations of BBR shifts in divalent atoms such as Sr is discussed. This approach combines the relativistic all-order method and the configuration interaction method. The evaluation of uncertainties in theoretical values of BBR shifts is discussed in detail. I

Year: 2010
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