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Bosonic loop diagrams as perturbative solutions of the classical field equations in 4-theory

URN to cite this document:
Finster, Felix ; Tolksdorf, Jürgen
Date of publication of this fulltext: 07 Feb 2012 09:51


Solutions of the classical �4-theory in Minkowski space-time are analyzed in a perturbation expansion in the nonlinearity. Using the language of Feynman diagrams, the solution of the Cauchy problem is expressed in terms of tree diagrams which involve the retarded Green’s function and have one outgoing leg. In order to obtain general tree diagrams, we set up a “classical measurement process” in ...


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