English

Stochastic quantization associated with the $\exp(\Phi)_2$-quantum field model driven by space-time white noise on the torus

Probability 2025-05-06 v2 Mathematical Physics Analysis of PDEs math.MP

Abstract

We consider a quantum field model with exponential interactions on the two-dimensional torus, which is called the exp(Φ)2\exp (\Phi)_{2}-quantum field model or H{\o}egh-Krohn's model. In the present paper, we study the stochastic quantization of this model by singular stochastic partial differential equations, which is recently developed. By the method, we construct a unique time-global solution and the invariant probability measure of the corresponding stochastic quantization equation, and identify with an infinite-dimensional diffusion process, which has been constructed by the Dirichlet form approach.

Cite

@article{arxiv.1907.07921,
  title  = {Stochastic quantization associated with the $\exp(\Phi)_2$-quantum field model driven by space-time white noise on the torus},
  author = {Masato Hoshino and Hiroshi Kawabi and Seiichiro Kusuoka},
  journal= {arXiv preprint arXiv:1907.07921},
  year   = {2025}
}

Comments

To appear in Journal of Evolution Equations

R2 v1 2026-06-23T10:24:03.238Z