LIOUVILLE QUANTUM GRAVITY WEIGHTED BY CONFORMAL LOOP ENSEMBLE NESTING STATISTICS

Nina Holden, Matthis Lehmkuehler

Research output: Contribution to journalArticlepeer-review

Abstract

We study Liouville quantum gravity (LQG) surfaces whose law has been reweighted according to nesting statistics for a conformal loop ensemble (CLE) relative to [Formula In Abstract] marked points z1,…, zn. The idea is to consider a reweighting by B⊆{1,…,n} B NB, where [Formula In Abstract] and NB is the number of CLE loops surrounding the points zi for i ∈ B. This is made precise via an approximation procedure where as part of the proof we derive strong spatial independence results for CLE. The reweighting induces logarithmic singularities for the Liouville field at z1, …, zn with a magnitude depending explicitly on σ1, …, σn . We define the partition function of the surface, compute it for n E {0, 1}, and derive a recursive formula expressing the n > 1 point partition function in terms of lower-order partition functions. The proof of the latter result is based on a continuum peeling process previously studied by Miller, Sheffield and Werner in the case n = 0, and we derive an explicit formula for the generator of a boundary length process that can be associated with the exploration for general n. We use the recursive formula to partly characterize for which values of (σB: B {1, …, n}) the partition function is finite. Finally, we give a new proof for the law of the conformal radius of CLE, which was originally established by Schramm, Sheffield, and Wilson.

Original languageEnglish (US)
Pages (from-to)848-960
Number of pages113
JournalProbability and Mathematical Physics
Volume5
Issue number4
DOIs
StatePublished - 2024

Keywords

  • conformal loop ensemble
  • Liouville quantum gravity
  • Schramm–Loewner evolution

ASJC Scopus subject areas

  • Statistics and Probability
  • Atomic and Molecular Physics, and Optics
  • Statistical and Nonlinear Physics

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