Loading...
Please wait, while we are loading the content...
Two-electron QED corrections in helium-like ions
| Content Provider | Semantic Scholar |
|---|---|
| Author | Draket, G. W. F. Adam J. Makowski S. |
| Copyright Year | 2018 |
| Abstract | The calculation of two-electron QED energy shifts in helium-like ions is discussed in order to correct a number of errors and misunderstandings which have appeared in the literature. New results are presented for the terms involving (r;:) in the ground and low-lying excited states for ions up to 2 = 10. A detailed comparison is made with the high-precision measurement by Martin and a calculation by Hata for the ls2p 'P , ls2p 3P, transition of helium. The basic theory of the lowest-order quantum electrodynamic (QED) contributions in two-electron ions was developed in the early papers of Kabir and Salpeter (1957), Araki (1957) and Sucher (1958). Recent high-precision measurements of transition frequencies among the n = 2 states of helium (Sansonetti and Martin 1984, Martin 1984) and Li+ (Holt et al 1980, Englert er al 1982) have stimulated renewed interest in the precise calculation of the two-electron QED terms. The purpose of this Letter is to correct some errors and misunderstandings which have appeared in the literature, and to present new results for the ls2p 'P1-ls2p 3P1 transition in helium. Following the conventional notation, the leading QED energy shifts in a two-electron ion are (in atomic units, with 1 au = a2mcz) AEL= ELs2+EF,:tEEg2 (1) |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://scholar.uwindsor.ca/cgi/viewcontent.cgi?article=1036&context=physicspub&httpsredir=1&referer= |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Bethe–Salpeter equation Electron Gold Helium Ions Paper Quantum Dots Telling untruths lithium cation notation |
| Content Type | Text |
| Resource Type | Article |
