Relativistic frequency shifts in Cr, Ti, Fe, Ni, Ca, Na, and V to search for variations in the fine-structure constant

@article{Dzuba2022RelativisticFS,
  title={Relativistic frequency shifts in Cr, Ti, Fe, Ni, Ca, Na, and V to search for variations in the fine-structure constant},
  author={V. A. Dzuba and Victor V. Flambaum and Michael T. Murphy and Daniel Berke},
  journal={Physical Review A},
  year={2022}
}
Many searches for variations in the low-energy value of the fine-structure constant, α ≡ e/~c, rely on understanding the sensitivity of atomic transtion frequencies on α (e.g.[6, 7]). Indeed, these were recently calculated for 13 transitions seen in infrared stellar spectra and used to probe for differences between α in giant stars near the Galactic Centre and the laboratory value [8]. This is also required for a new probe of α-variation across our Galaxy, using stars very similar to our Sun… 
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