A~new algebra in the stochastic approximation for the model of a~particle interacting with a~quantum field
Teoretičeskaâ i matematičeskaâ fizika, Tome 116 (1998) no. 3, pp. 401-416

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When the stochastic approximation is used to calculate correlation functions in the model of a particle interacting with a quantum field, a new algebra with temperature-dependent commutation relations appears. This algebra generalizes the free (Boltzmann) algebra.
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     author = {L. Accardi and I. V. Volovich and S. V. Kozyrev},
     title = {A~new algebra in the stochastic approximation for the model of a~particle interacting with a~quantum field},
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L. Accardi; I. V. Volovich; S. V. Kozyrev. A~new algebra in the stochastic approximation for the model of a~particle interacting with a~quantum field. Teoretičeskaâ i matematičeskaâ fizika, Tome 116 (1998) no. 3, pp. 401-416. http://geodesic.mathdoc.fr/item/TMF_1998_116_3_a6/