The Feynman-Schwinger Representation for
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Y.A. Simonov; J.A. Tjon
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Article
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1993
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Elsevier Science
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English
⚖ 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