<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi></mml:math>-factor measurement of hydrogenlike<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>28</mml:mn></mml:msup></mml:math>Si<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mrow><mml:mn>13</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:math>as a challenge to QED calculations

Sturm, Sven; Wagner, Anke; Kretzschmar, Martin; Quint, W.; Werth, G.; Blaum, Klaus

doi:10.1103/physreva.87.030501

Cited by 111 publications

(160 citation statements)

References 14 publications

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“…They are dominated by a shift of the perturbed cyclotron frequency from image charges induced in the trap electrodes by the oscillating ion. A calculation for a cylindrical trap geometry [30] yields…”

Section: Resultsmentioning

confidence: 99%

“…Because of the high signal amplitude this method reduces the time needed for the cyclotron measurement by more than one order of magnitude, reducing the uncertainty from instabilities of trap parameters tremendously. It has been applied recently in an experiment on 28 Si 13+ [30]. The accuracy of the perturbed cyclotron frequency is of greatest importance for the precise determination of the free particle's cyclotron frequency as required for calibration of the magnetic field.…”

Section: Figurementioning

confidence: 99%

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Electron g‐factor determinations in Penning traps

2013

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The magnetic moment of the electron, expressed by the g-factor in units of the Bohr magneton, is a key quantity in the theory of quantum electrodynamics (QED). Experiments using single particles confined in Penning traps have provided very precise values of the g-factor for the free electron as well as the electron bound in hydrogen-like ions. In this paper the status of these experiments is reviewed. The results allow testing calculations of higher order Feynman diagrams. Comparison of experimental and theoretical results for free and bound particles show no discrepancy within the limits of error, thus representing to date the most sensitive test of QED. Moreover, the g-factor provides a unique access to fundamental constants, as e.g. the electron mass or the fine structure constant.

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Section: Resultsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Electron g‐factor determinations in Penning traps

2013

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“…This interest was triggered by the first experiments on the g factor of H-like C 1 and O 2 and was supported by the recent measurements for some higher-Z ions [3][4][5] .…”

Section: Introductionmentioning

confidence: 80%

Theory of Bound-Electron g Factor in Highly Charged Ions

Shabaev

Glazov

Plunien

et al. 2015

Journal of Physical and Chemical Reference Data

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The paper presents the current status of the theory of bound-electron g factor in highly charged ions. The calculations of the relativistic, QED, nuclear recoil, nuclear structure, and interelectronic-interaction corrections to the g factor are reviewed. Special attention is paid to tests of QED effects at strong coupling regime and determinations of the fundamental constants. a) Invited paper published as part of the Proceedings of the Fundamental Constants Meeting, Eltville, Germany, February, 1-6, 2015.

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“…Высокоточные измерения для водородоподобных ионов [1][2][3][4] вместе с теоретиче-скими расчетами (см. [5] и ссылки там) позволили суще-ственно уточнить массу электрона [6,7].…”

Section: Introductionunclassified

“…Ожидаемые в ближайшем будущем эксперименты с водородо-, литие-и бороподобными ионами могут обеспечить независи-мое определение постоянной тонкой структуры [8][9][10] при условии соответствующего прогресса со стороны теории. В то же время достигнутое к настоящему времени согласие между теорией и экспериментом демонстрирует наиболее точную проверку квантовой электродинамики (КЭД) для связанных состояний в присутствии магнитного поля [4,5,[11][12][13][14]. Еще более нетривиальная проверка КЭД связана с эффектом отдачи ядра, полное описание которого требует выхода за рамки картины Фарри, т. е. за рамки приближения внешнего поля.…”

Section: Introductionunclassified