Singular Perturbations in Quantum Field Theory

V. E. Rochev; P. A. Saponov

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arXiv · hep-th/9510219

Singular Perturbations in Quantum Field Theory

V. E. Rochev·P. A. Saponov

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Abstract

In this talk we discuss a new approximation scheme for non-perturbative calculations in a quantum field theory which is based on the fact that the Schwinger equation of a quantum field model belongs to the class of singularly perturbed equations. The self-interacting scalar field and the Gross-Neveu model are taken as the examples and some non-perturbative solutions of an equation for the propagator are found for these models. The application to QCD is also discussed.

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BibTeX RIS

V. E. Rochev, P. A. Saponov. 1995-10-30. Singular Perturbations in Quantum Field Theory. https://arxiv.org/abs/hep-th/9510219

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