English

Stochastic quantization associated with the $\exp(\Phi)_2$-quantum field model driven by space-time white noise on the torus in the full $L^1$-regime

Probability 2022-05-17 v3 Mathematical Physics Analysis of PDEs math.MP

Abstract

The present paper is a continuation of our previous work on the stochastic quantization of the exp(Φ)2\exp(\Phi)_2-quantum field model on the two-dimensional torus. Making use of key properties of Gaussian multiplicative chaos and refining the method for singular SPDEs introduced in the previous work, we construct a unique time-global solution to the corresponding parabolic stochastic quantization equation in the full "L1L^{1}-regime" α<8π\vert\alpha\vert<\sqrt{8\pi} of the charge parameter α\alpha. We also identify the solution with an infinite-dimensional diffusion process constructed by the Dirichlet form approach.

Keywords

Cite

@article{arxiv.2007.08171,
  title  = {Stochastic quantization associated with the $\exp(\Phi)_2$-quantum field model driven by space-time white noise on the torus in the full $L^1$-regime},
  author = {Masato Hoshino and Hiroshi Kawabi and Seiichiro Kusuoka},
  journal= {arXiv preprint arXiv:2007.08171},
  year   = {2022}
}

Comments

References are corrected