期刊
PHYSICAL REVIEW LETTERS
卷 123, 期 17, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.123.173001
关键词
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资金
- RFBR [16-02-00334, 19-02-00974]
- DFG [VO 1707/1-3]
- SPbSU-DFG [11.65.41.2017, STO 346/5-1]
- SPbSU [COLLAB 2019: 37715081]
- Max Planck Society
- International Max Planck Research School for Quantum Dynamics in Physics, Chemistry and Biology (IMPRS-QD)
- International Max Planck Research School for Precision Tests of Fundamental Symmetries in Particle Physics, Nuclear Physics, Atomic Physics and Astroparticle Physics (IMPRS-PTFS) at the University of Heidelberg
- German Research Foundation (DFG) Collaborative Research Centre [SFB 1225]
The recently established agreement between experiment and theory for the g factors of lithium like silicon and calcium ions manifests the most stringent test of the many-electron bound-state quantum electrodynamics (QED) effects in the presence of a magnetic field. In this Letter, we present a significant simultaneous improvement of both theoretical g(th) = 2.000 889 894 4 (34) and experimental g(exp) = 2.000 889 888 45 (14) values of the g factor of lithium like silicon Si-28(11+). The theoretical precision now is limited by the many-electron two-loop contributions of the bound-state QED. The experimental value is accurate enough to test these contributions on a few percent level.
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