Hidden BRST Symmetry and Large N

  • Jorge Alfaro
Part of the NATO ASI Series book series (NSSB, volume 224)


A new method to obtain the large N limit of a Quantum Field Theory is presented. The technique is based on a recently defined generalization of the Hidden BRST Symmetry of Stochastic Quantization. We prove various propositions that permit a concise and efficient calculation of the leading order in large N of a model. The method is illustrated by solving various examples. In particular we find a closed solution for the zero-dimensional two Her-mitian matrix model. Finally we explain how to get the higher order corrections in the 1/N expansion.


Ward Identity Closed Solution Stochastic Quantization BRST Transformation BRST Symmetry 
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Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • Jorge Alfaro
    • 1
  1. 1.Facultad de Física Universidad Católica de Chile CasillaCasillaChile

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