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The European Physical Journal C

Green’s function for spinless particle via Parisi-Wu stochastic quantization method

Zehoua Lehtihet, L. Chétouani

Published Jun 7, 2005• 5 citations
Publisher
DOI
10.1140/epjc/s2005-02276-y

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The Langevin equation and the Gaussian average of the stochastic quantization of Parisi and Wu are continued on the closed time-path, at the same time, the new non-Gaussian source is added into it. After assuming some properties of new source, the closed time-path Green functions are computed by using the adapted Langevin equations. While they are transformed into the physical representation, some important characters of closed time-path Green function, i.e. the normalization and causality, are obtained also.