dorsal/arxiv
View SchemaQED calculation of the n=1 and n=2 energy levels in He-like ions
| Authors | A. N. Artemyev, V. M. Shabaev, V. A. Yerokhin, G. Plunien, G. Soff |
|---|---|
| Categories | |
| ArXiv ID | physics/0501079 |
| URL | https://arxiv.org/abs/physics/0501079 |
| DOI | 10.1103/PhysRevA.71.062104 |
| Journal | Phys. Rev. A v.71, 062104 (2005) |
Abstract
We perform ab initio QED calculations of energy levels for the $n=1$ and $n=2$ states of He-like ions with the nuclear charge in the range $Z = 12$-100. The complete set of two-electron QED corrections is evaluated to all orders in the parameter $\aZ$. Uncalculated contributions to energy levels come through orders $\alpha^3 (\aZ)^2$, $\alpha^2 (\aZ)^7$, and higher. The calculation presented is the first treatment for excited states of He-like ions complete through order $\alpha^2 (\aZ)^4$. A significant improvement in accuracy of theoretical predictions is achieved, especially in the high-$Z$ region.
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"abstract": "We perform ab initio QED calculations of energy levels for the $n=1$ and\n$n=2$ states of He-like ions with the nuclear charge in the range $Z = 12$-100.\nThe complete set of two-electron QED corrections is evaluated to all orders in\nthe parameter $\\aZ$. Uncalculated contributions to energy levels come through\norders $\\alpha^3 (\\aZ)^2$, $\\alpha^2 (\\aZ)^7$, and higher. The calculation\npresented is the first treatment for excited states of He-like ions complete\nthrough order $\\alpha^2 (\\aZ)^4$. A significant improvement in accuracy of\ntheoretical predictions is achieved, especially in the high-$Z$ region.",
"arxiv_id": "physics/0501079",
"authors": [
"A. N. Artemyev",
"V. M. Shabaev",
"V. A. Yerokhin",
"G. Plunien",
"G. Soff"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.71.062104",
"journal_ref": "Phys. Rev. A v.71, 062104 (2005)",
"title": "QED calculation of the n=1 and n=2 energy levels in He-like ions",
"url": "https://arxiv.org/abs/physics/0501079"
},
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