Theoretical investigation of Black-body Zeeman Shifts in Microwave Atomic Clock.
With the development of microwave atomic clocks, black-body radiation Zeeman shifts need to be considered carefully. In this Letter, the frequency shifts of hyperfine splittings of ground state due to black-body magnetic field are investigated. The relative frequency shifts of different alkali atoms and alkali-like ions which could be candidates of microwave atomic clocks are calculated, and results are from -0.977*10^(-17) [T(K)/300]^2 to -1.947*10^(-17) [T(K)/300]^2 for different atoms. These results are consistent with previous works but with more precision, detailed derivations and clear physical pictures.
Publisher URL: http://arxiv.org/abs/1712.00889
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