Abstract
We give a rigorous construction of a stochastic continuumP(φ)2 model in finite Euclidean space-time volume. It is obtained by a weak solution of a non-linear stochastic differential equation in a space of distributions. The resulting Markov process has continuous sample paths, and is ergodic with the finite volume EuclideanP(φ)2 measure as its unique invariant measure. The procedure may be called stochastic field quantization.
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Communicated by G. Mack
Laboratoire Associé 280 au CNRS
Supported in part by GNSM and INFN
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Jona-Lasinio, G., Mitter, P.K. On the stochastic quantization of field theory. Commun.Math. Phys. 101, 409–436 (1985). https://doi.org/10.1007/BF01216097
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DOI: https://doi.org/10.1007/BF01216097