In Part I, we have considered methods for treating atomic many-body systems within the standard relativistic MBPT and coupled-cluster schemes, in what is known as the no-virtual-pair approximation (NVPA). In the second part, we shall include effects beyond this approximation, which we shall refer to as quantum-electrodynamical (QED) effects. We shall describe three methods for numerical calculations of QED effects on bound states, developed in the last few decades, which are all based upon field theory.1
CITATION STYLE
Lindgren, I. (2011). S-Matrix. In Springer Series on Atomic, Optical, and Plasma Physics (Vol. 63, pp. 59–89). Springer. https://doi.org/10.1007/978-1-4419-8309-1_4
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