Stochastic Quantization of Autonomous Phi**4

Details Stochastic Quantization of Autonomous Phi**4 Stochastic Quantization of Autonomous Phi**4

1994-04-08

arxiv.org/abs/hep-th/9404049v2

Physics

High Energy Physics

High Energy Physics - Theory

8 pages Latex + corrected(!) Postscript file

Scientific paper

The non-perturbative autonomous renormalization of the scalar $\Phi^4$-model is applied in the framework of stochastic quantization. I show that this requires a selective, momentum-dependent renormalization of the Onsager coefficient $\lambda$, a direct consequence of the characteristic wavefunction renormalization applied. As a result, I obtain a Langevin equation for the renormalized constant mode of the field, which is solved numerically. It is demonstrated for temperature zero that, starting from specified initial conditions, the system relaxes to its equilibrium state, the symmetry-breaking vacuum of the ``static'' $\Phi^4$-theory.

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