Moments of the 2D SHE at criticality

نویسندگان

چکیده

We study the stochastic heat equation in two spatial dimensions with a multiplicative white noise, as limit of driven by noise that is mollified space and time. As mollification radius $ \varepsilon\to 0 $, we tune coupling constant near critical point, show single time correlation functions converge to written terms an explicit non-trivial semigroup. Our approach consists steps. First convergence resolvent (tuned) two-dimensional delta Bose gas, adapting framework Dimock Rajeev (2004) our setup mollification. Then match this Laplace transform

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ژورنال

عنوان ژورنال: Probability and mathematical physics

سال: 2021

ISSN: ['2690-1005', '2690-0998']

DOI: https://doi.org/10.2140/pmp.2021.2.179