Brunelli, J. C.Mendes, R. S.2014-05-202014-05-201993-01-20Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 8, n. 2, p. 115-128, 1993.0217-7323http://hdl.handle.net/11449/36631We study the 1/N expansion of field theories in the stochastic quantization method of Parisi and Wu using the supersymmetric functional approach. This formulation provides a systematic procedure to implement the 1/N expansion which resembles the ones used in the equilibrium. The 1/N perturbation theory for the nonlinear sigma-model in two dimensions is worked out as an example.115-128engArtigo10.1142/S0217732393000131WOS:A1993KP76100003Acesso restrito