g Factor of Lithiumlike Silicon: New Challenge to Bound-State QED

Glazov, D. A.; Köhler-Langes, F.; Volotka, A. V.; Blaum, K.; Heiße, F.; Plunien, G.; Quint, W.; Rau, S.; Shabaev, V. M.; Sturm, S.; Werth, G.

doi:10.1103/PhysRevLett.123.173001

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学術論文

g Factor of Lithiumlike Silicon: New Challenge to Bound-State QED

MPS-Authors

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Köhler-Langes, F.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30312

Blaum, K.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons207033

Heiße, F.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons207035

Rau, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons31090

Sturm, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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https://doi.org/10.1103/PhysRevLett.123.173001
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1903.11609.pdf
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引用

Glazov, D. A., Köhler-Langes, F., Volotka, A. V., Blaum, K., Heiße, F., Plunien, G., Quint, W., Rau, S., Shabaev, V. M., Sturm, S., & Werth, G. (2019). g Factor of Lithiumlike Silicon: New Challenge to Bound-State QED. Physical Review Letters, 123(17):. doi:10.1103/PhysRevLett.123.173001.

引用: https://hdl.handle.net/21.11116/0000-0004-EBC0-A

要旨

The recently established agreement between experiment and theory for the $g$
factors of lithiumlike 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 $g_\text{th} =
2.000\,889\,894\,4\,(34)$ and experimental $g_\text{exp} =
2.000\,889\,888\,45\,(14)$ values of the $g$ factor of lithiumlike silicon
$^{28}$Si$^{11+}$. 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.