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Nonlocal quantum field theory, nonlinear interaction lagrangians, and the convergence of the perturbation-theory series

✍ Scribed by G. V. Efimov


Book ID
112466760
Publisher
SP MAIK Nauka/Interperiodica
Year
1970
Tongue
English
Weight
404 KB
Volume
2
Category
Article
ISSN
0040-5779

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Convergence of nonlinear massive quantum
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We treat as prototype for four-dimensional nonlinear quantum field theories the g(p4 theory in the Einstein Universe E = R' x S3. The underlying free system is defined by the Klein-Gordon equation in E. We show rigorously, without the intervention of any cutoffs or perturbative renormalizations, tha