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Topological kinks in φ2n field theories: A variational approach

✍ Scribed by Fred Cooper; L.M. Simmons Jr.; Pasquale Sodano


Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
602 KB
Volume
56
Category
Article
ISSN
0167-2789

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1N expansion, composite field formalism
✍ Ragnheidur Gudmundsdottir; Gunnar Rydnell; Per Salomonsson 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 604 KB

U(N) symmetric three-dimensional (I$')~ theory is studied in the l/N expansion, using quantum field theory techniques. An effective action containing the composite operator +2 is used. It is shown to be renormalizable in each order of the l/N expansion. The lirst two orders are considered. A vacuum