Search for dissertations about: "Daniel Hedendahl"

Found 1 swedish dissertation containing the words Daniel Hedendahl.

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

   Author : Daniel Hedendahl; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; 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. READ MORE