PATH-ORDERED PHASE-FACTORS IN SCALAR QUANTUM ELECTRODYNAMICS
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1995-06-01
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Kyoto Univ
Resumo
Starting from linear equations for the complex scalar field, the two- and three-point Green's functions are obtained in the infrared approximation. We show that the infrared singularity factorizes in the vertex function as in spinor QED, reproducing in a simple and straightforward way the result of lengthy perturbative calculations.
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Progress of Theoretical Physics. Kyoto: Kyoto Univ, v. 93, n. 6, p. 1105-1112, 1995.