STOCHASTIC QUANTIZATION AND 1/N EXPANSION
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Data
1993-01-20
Autores
Brunelli, J. C.
Mendes, R. S.
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World Scientific Publ Co Pte Ltd
Resumo
We 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.
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Modern Physics Letters A. Singapore: World Scientific Publ Co Pte Ltd, v. 8, n. 2, p. 115-128, 1993.