Nondegenerate scaling limits for Wick powers of the loop-soup field
Nondegenerate scaling limits for Wick powers of the loop-soup field
Let , let be the discrete loop-soup field, and define its Wick powers by
where is the relevant Green function and is the Laguerre polynomial. Let be the discrete loop soup, and let and denote the spaces used for the field and loop-soup components. The Wick-power scaling-limit conjecture. For any , the joint law converges in distribution as
The convergence holds in for every , and the limiting fields are measurable with respect to . This conjecture proposes scaling limits for the renormalised odd powers not covered by the already defined integer local-time powers; the existence and nondegeneracy of these limits remain open.
Sources & referencesView supporting material
Primary source
Antoine Jego, Titus Lupu and Wei Qian, “Conformally invariant fields out of Brownian loop soups”, arXiv:2307.10740 (2023).
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