Relativistic corrections to transition frequencies of Fe I and search for variation of the fine structure constant

Abstract

Relativistic energy shifts of the low energy levels of Fe have been calculated using the Dirac-Hartree-Fock and configuration interaction techniques. The results are to be used in the search for the space-time variation of the fine structure constant in quasar absorption spectra. The values of the shifts are the largest among those used in the analysis so far. This makes Fe a good candidate for the inclusion into the analysis.

7 pages, 3 figures, 4 tables

References in corpus (5)

• Comment on "Limits on the Time Variation of the Electromagnetic Fine-Structure Constant in the Low Energy Limit from Absorption Lines in the Spectra of Distant Quasars"
• Variation of fundamental constants: theory and observations
• Core-valence correlations for atoms with open shells
• Transition frequency shifts with fine structure constant variation for Fe II: Breit and core-valence correlation correction
• Coupled-cluster single-double calculations of the relativistic energy shifts in C IV, Na I, Mg II, Al III, Si IV, Ca II and Zn II

Cited by in corpus (16)

• Relativistic corrections to transition frequencies of Ag I, Dy I, Ho I, Yb II, Yb III, Au I and Hg II and search for variation of the fine structure constant
• Parity-violating interactions of cosmic fields with atoms, molecules, and nuclei: Concepts and calculations for laboratory searches and extracting limits
• Limiting P-odd interactions of cosmic fields with electrons, protons and neutrons
• Combining configuration interaction with perturbation theory for atoms with large number of valence electrons
• Optical clock sensitive to variation of the fine structure constant based on the Ho${}^{14+}$ ion
• Optical Atomic Clock aboard an Earth-orbiting Space Station (OACESS): Enhancing searches for physics beyond the standard model in space
• Limits on gravitational Einstein Equivalence Principle violation from monitoring atomic clock frequencies during a year
• Transition frequency shifts with fine-structure constant variation for Fe I. Isotope shift calculations in Fe I and Fe II
• Highly charged ions for atomic clocks and search for variation of the fine structure constant
• Scalar Static Polarizabilities of Lanthanides and Actinides
• Time keeping and searching for new physics using metastable states of Cu, Ag and Au
• Mid- and far-infrared fine-structure line sensitivities to hypothetical variability of the fine-structure constant
• Theoretical study of electron structure of superheavy elements with an open $6d$-shell, Sg, Bh, Hs and Mt
• Relativistic frequency shifts in Cr, Ti, Fe, Ni, Ca, Na, and V to search for variation in the fine structure constant
• Sensitivity coefficients to $\alpha$-variation for astrophysically relevant transitions in Ni II
• Effect of atomic electric quadrupole moment on positron binding