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Cours Année : 2013

The 1/N expansion method in quantum field theory

Résumé

The motivations of the 1/N expansion method in quantum field theory are explained. The method is first illustrated with the O(N) model of scalar fields. A second example is considered with the two-dimensional Gross-Neveu model of fermion fields with global U(N) and discrete chiral symmetries. The case of QCD is briefly sketched.
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Dates et versions

cel-01152586 , version 1 (18-05-2015)

Identifiants

  • HAL Id : cel-01152586 , version 1

Citer

H Sazdjian. The 1/N expansion method in quantum field theory . Doctoral. Symmetries in quantum field theory, Tsakhkadzor, Armenia. 2013, pp.26. ⟨cel-01152586⟩
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