Relativistic calculation of the two-photon decay rate of highly-excited ionic states
| dc.creator | Jentschura, Ulrich D. | |
| dc.creator | Surzhykov, Andrey | |
| dc.date | 2008-07-03 | |
| dc.date.accessioned | 2026-07-07T09:48:35Z | |
| dc.date.available | 2026-07-07T09:48:35Z | |
| dc.description | Based on quantum electrodynamics, we reexamine the two-photon decay of one-electron atoms. Special attention is paid to the calculation of the (two-photon) total decay rates which can be viewed as the imaginary part of the two-loop self-energy. We argue that our approach can easily be applied to the cases with a virtual state having an intermediate energy between the initial and the final state of the decay process leading, thus, to the resonance peaks in the two-photon energy distribution. In order to illustrate our approach, we obtain fully relativistic results, resolved into electric and magnetic multipole components, for the two-photon decay rates of the 3S_{1/2} -> 1S_{1/2} transition in neutral hydrogen as well as in various hydrogen-like ions. | |
| dc.description | 11 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/0807.0651 | |
| dc.identifier | http://arxiv.org/abs/0807.0651 | |
| dc.identifier | Phys.Rev.A 77 (2008) 042507 | |
| dc.identifier | doi:10.1103/PhysRevA.77.042507 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/164268 | |
| dc.subject | Atomic Physics | |
| dc.title | Relativistic calculation of the two-photon decay rate of highly-excited ionic states | |
| dc.type | text |