On the Transition Matrix and the Green Function in the Quantum Field Theory

概要

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The J. Schwinger's formalism of the Green function in the quantum electrodynamics is applied to the transition problem of the state. It is shown that the many body kernel in the Heisenberg representation involves the information about the transition of the state and this is directly represented by the repeated use of the one body kernel G, 〓 and the vertex operator γ_μ defined by J. Schwinger. Further, the renormalization is discussed without use of the usual perturbation theory, although there remains the difficulty associated with the b-divergence.
理論物理学刊行会の論文

著者

TANAKA Sho
Institute of Physics and Tsukuba Research Center for Interdisciplinary Materials Science, University
Umezawa Hiroomi
Institute Of Theoretical Physics Nagoya University
Umezawa Hiroomi
Institute Of Theoretial Physics Nagoya University

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On the Transition Matrix and the Green Function in the Quantum Field Theory

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