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Towards a relativistically covariant many-body perturbation theory - With numerical implementation to helium-like ions

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Title: Towards a relativistically covariant many-body perturbation theory - With numerical implementation to helium-like ions
Authors: Hedendahl, Daniel
Issue Date: 30-Mar-2010
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Physics ; Institutionen för fysik
Parts of work: I. Many-body-QED perturbation theory: Connection to the two-electron Bethe-Salpeter equation. Can. J. Phys., 83, 183-218, 2005.

II. Many-body procedure for energy-dependent perturbation: Merging many-body perturbation theory with QED. Phys. Rev. A., 73, 062502, 2006.

Date of Defence: 2010-04-23
Disputation: Fredagen den 23 april 2010, kl. 13.15, Kollektorn, MC2, Chalmers tekniska högskola, Göteborg
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: many-body perturbation theory
bound state QED
helium-like ions
Green's operator
covariant evolution operator
combined effects of QED and correlation
atomic structure calculations
Abstract: The experimental results for simple atomic systems have become more and more accurate and in order to keep up with the experimental achievements the theoretical procedures have to be refined. Recent accurate experimental results obtained for helium-like ions in the low- and moderate-Z regions proclaim the importance of theoretical calculations that combines relativistic, QED and electron correlation effects. On the basis of these premises the relativistically covariant many-body perturbation pro... more
ISBN: 978-91-628-8071-2
Appears in Collections:Doctoral Theses / Doktorsavhandlingar Institutionen för fysik
Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet



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