Brownian loop-soup cluster expansion conjecture in fractional occupation fields
Brownian loop-soup cluster expansion conjecture in fractional occupation fields
Fix . Let be a Brownian loop soup of central charge , let be one of its clusters, and let denote the hypothetical renormalized signed fractional occupation-field power. Brownian loop-soup cluster expansion conjecture. The -neighborhood of , for both Euclidean distance and conformal radius, should admit an asymptotic expansion in the powers
whose coefficient of is a linear combination of the restricted fields for . The renormalized intersection local times should not appear, and the Euclidean and conformal-radius expansions should be related through MKS loop-measure moments.
Sources & referencesView supporting material
Primary source
Titus Lupu, “Relation between Wick powers and excursion clusters of the 2D GFF”, arXiv:2509.01797 (2025).
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