Browsing NTNU Open by Author "Rekdal, Per Kristian"
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Causality in quantum field theory with classical sources
Skagerstam, Bo-Sture; Eriksson, Karl-Erik; Rekdal, Per Kristian (Journal article; Peer reviewed, 2019)In an exact quantum-mechanical framework we show that space-time expectation values of the second-quantized electromagnetic fields in the Coulomb gauge in the presence of a classical conserved source automatically lead to ...