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  Hyperfine splitting in simple ions for the search of the variation of fundamental constants

Oreshkina, N. S., Cavaletto, S. M., Michel, N., Harman, Z., & Keitel, C. H. (2017). Hyperfine splitting in simple ions for the search of the variation of fundamental constants. Physical Review A, 96(3): 030501(R). doi:10.1103/PhysRevA.96.030501.

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 Creators:
Oreshkina, Natalia S.1, Author              
Cavaletto, Stefano M.1, Author              
Michel, Niklas2, Author              
Harman, Zoltan2, Author              
Keitel, Christoph H.2, Author              
Affiliations:
1Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society,, ou_904546              
2Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              

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 MPINP: Research group Z. Harman – Division C. H. Keitel
 Abstract: Numerous few-electron atomic systems are considered which can be used effectively for observing a potential variation of the fine-structure constant a and the electron-proton mass ratio m(e)/m(p). We examine optical magnetic dipole transitions between hyperfine-structure components in heavy highly charged H-like and Li-like ions with observably high sensitivity to a variation of a and m(e)/m(p). The experimental spectra of the proposed systems consist of a strong single line, which simplifies significantly the data analysis and shortens the necessary measurement time. Furthermore, we propose systems for an experimental test of the variation of quark masses and discuss the expected level of accuracy in assessing its limitations. Finally, we establish which constraints on the variation of these fundamental constants could be provided by measurements with a hyperfine-structure highly-charged-ion clock and some reference clock, showing that a significant improvement of the current limitations can be reached.

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 Dates: 2017-09-27
 Publication Status: Published online
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 Identifiers: DOI: 10.1103/PhysRevA.96.030501
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Title: Physical Review A
  Other : Phys. Rev. A
  Other : Physical Review A: Atomic, Molecular, and Optical Physics
Source Genre: Journal
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Publ. Info: New York, NY : American Physical Society
Pages: - Volume / Issue: 96 (3) Sequence Number: 030501(R) Start / End Page: - Identifier: ISSN: 1050-2947
CoNE: https://pure.mpg.de/cone/journals/resource/954925225012_2