The Feynman-Schwinger Representation for
โ
Y.A. Simonov; J.A. Tjon
๐
Article
๐
1993
๐
Elsevier Science
๐
English
โ 600 KB
The proper time path-integral representation for the two-body Green's function is derived for several examples of field theory, e.g., the \(\varphi^{3}\) theory in \(4 d\), scalar and spinor QED, and its properties are studied in the quenched approximation. The perturbative expansion is shown to coi