Precision spectroscopy of the3s−3pfine-structure doublet inMg+

2009/07/02 by Valentin Batteiger, V. Batteiger, S. Knünz +11 · 62 citations
Chemistry · Physics and Astronomy · #Advanced Frequency and Time Standards #Analytical Chemistry (journal) #Atomic and Molecular Physics #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Ion #Physics #Spectroscopy #physics.atom-ph

paper · pdf · doi:10.1103/physreva.80.022503

published in Physical Review A 80(2) (American Physical Society)

arxiv created 2009/07/02 · openalex publication_date 2009/08/11 · arxiv updated 2015/05/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We apply a recently demonstrated method for precision spectroscopy on strong transitions in trapped ions to measure both fine-structure components of the 3s\text\ensuremath-3p transition in ²⁴Mg⁺ and ²⁶Mg⁺. We deduce absolute frequency reference data for transition frequencies, isotope shifts, and fine-structure splittings that in particular are useful for comparison with quasar absorption spectra, which test possible space-time variations of the fine-structure constant. The measurement accuracy improves previous literature values, when existing, by more than two orders of magnitude.

Citations

• Frequency metrology on the4s<mml:mspace width="0.2em"/>S1∕2<mml:none/><mml:mprescripts/><mml:none/>2–4p<mml:mspace width="0.2em"/>P1∕2<mml:none/><mml:mprescripts/><mml:none/>2transition inCa<mml:none/>+<mml:mprescripts/><mml:none/>40for a comparison with quasar data
• Relativistic calculations of isotope shifts in highly charged ions
• Search for Time Variation of the Fine Structure Constant
• Frequency Ratio of Al+and Hg+Single-Ion Optical Clocks; Metrology at the 17th Decimal Place
• Astronomical spectrograph calibration with broad-spectrum frequency combs
• Space-Time Variation of Physical Constants and Relativistic Corrections in Atoms
• Photoionization and photoelectric loading of barium ion traps

Cited by

• Comparative Analysis of Mg⁺ Properties using Multiconfiguration Dirac-Hartree-Fock and Relativistic Coupled-cluster Methods
• Artificial intelligence applied to the automatic analysis of absorption spectra. Objective measurement of the fine structure constant.

Related

• Calculation of the dependence of transition frequencies on the fine structure constant and the search for variation of alpha in QSO spectra
• Laboratory spectroscopy and the search for space-time variation of the fine structure constant using QSO spectra
• Ion clock and search for the variation of the fine-structure constant using optical transitions in Nd13+and Sm15+
• Searching for new physics using high precision absorption spectroscopy; continuum placement uncertainties and Δα/α towards the quasar PHL957
• Improved access to the fine-structure constant with the simplest atomic systems