Extraction of the electron mass from 
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-factor measurements on light hydrogenlike ions

Zatorski, Jacek; Sikora, B.; Karshenboim, Savely G.; Sturm, Sven; Köhler-Langes, Florian; Blaum, Klaus; Keitel, Christoph H.; Harman, Z.

doi:10.1103/physreva.96.012502

Cited by 56 publications

(65 citation statements)

References 53 publications

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“…Effects of O α π 2 α 5 Z are becoming important for the determination of m e . Since g enters linearly in the master formula for m e [15,16], the relative error in g enters directly into the uncertainty of m e . Numerically, α π 2 α 5 Z /(g = 2) is 4 · 10 −13 for carbon and 3 · 10 −11 for silicon.…”

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confidence: 99%

Two-Loop Binding Corrections to the Electron Gyromagnetic Factor

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Two-Loop Binding Corrections to the Electron Gyromagnetic Factor

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“…These results could be further improved by combining theoretical and experimental values for two different H-like ions (Sturm et al, 2014). This idea of combining precise g-factor measurements and QED calculations (Czarnecki and Szafron, 2016;Sturm et al, 2013a;Yerokhin and Harman, 2013), has recently yielded a 13-fold improvement on the electron mass determination (Köhler et al, 2015;Sturm et al, 2014;Zatorski et al, 2017).…”

Section: Microwave Studies Of the Bound-electron G Factormentioning

confidence: 99%

Highly charged ions: Optical clocks and applications in fundamental physics

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Recent developments in frequency metrology and optical clocks have been based on electronic transitions in atoms and singly charged ions as references. The control over all relevant degrees of freedom in these atoms has enabled relative frequency uncertainties at a level of a few parts in 10 −18 . This accomplishment not only allows for extremely accurate time and frequency measurements, but also to probe our understanding of fundamental physics, such as a possible variation of fundamental constants, a violation of the local Lorentz invariance, and the existence of forces beyond the Standard Model of Physics. In addition, novel clocks are driving the development of sophisticated technical applications. Crucial for applications of clocks in fundamental physics are a high sensitivity to effects beyond the Standard Model and Einstein's Theory of Relativity and a small frequency uncertainty of the clock. Highly charged ions offer both. They have been proposed as highly accurate clocks, since they possess optical transitions which can be extremely narrow and less sensitive to external perturbations compared to current atomic clock species. The large selection of highly charged ions in different charge states offers narrow transitions that are among the most sensitive ones for a change in the finestructure constant and the electron-to-proton mass ratio, as well as other new physics effects. Recent experimental advances in trapping and sympathetic cooling of highly charged ions will in the future enable advanced quantum logic techniques for controlling motional and internal degrees of freedom and thus enable high accuracy optical spectroscopy. Theoretical progress in calculating the properties of selected highly charged ions has allowed the evaluation of systematic shifts and the prediction of the sensitivity to the "new physics" effects. New theoretical challenges and opportunities emerge from relativistic, quantum electrodynamics, and nuclear size contributions that become comparable with interelectronic correlations. This article reviews the current status of theory and experiment in the field, addresses specific electronic configurations and systems which show the most promising properties for research, their potential limitations, and the techniques for their study.

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“…As a result, in Refs. [41,44] the precision of the atomic mass of the electron was further improved by a factor of 13.…”

Section: Bound-electron G Factormentioning

confidence: 99%

Stringent tests of QED using highly charged ions

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The present status of tests of QED with highly charged ions is reviewed. The theoretical predictions for the Lamb shift and the transition energies are compared with available experimental data. Recent achievements in studies of the hyperfine splitting and the g-factor isotope shift with highly charged ions are reported. Special attention is paid to tests of QED within and beyond the Furry picture at strong-coupling regime. Prospects for tests of QED at supercritical fields that can be created in low-energy heavy-ion collisions are discussed as well.Keywords quantum electrodynamics · highly charged ions · Lamb shift PACS 12.20.m · 12.20.Ds · 31.30.J-V.M. Shabaev

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Extraction of the electron mass from g -factor measurements on light hydrogenlike ions

Cited by 56 publications

References 53 publications

Two-Loop Binding Corrections to the Electron Gyromagnetic Factor

Two-Loop Binding Corrections to the Electron Gyromagnetic Factor

Highly charged ions: Optical clocks and applications in fundamental physics

Stringent tests of QED using highly charged ions

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