The zero-curvature JT area-tail conjecture with conformal matter

Let ρβq0(A)\rho^0_{\beta_{\mathrm q}}(A) be the area distribution of zero-curvature JT gravity coupled to conformal matter with c0c\leq0, and let ν\nu be the critical exponent specified by the paper. Zero-curvature area-tail conjecture. There are a strictly positive constant κν\kappa_\nu and a strictly increasing exponent χν\chi_\nu such that

lnρβq0(A)κν(A/βq2ν)χν(A+),\ln\rho^0_{\beta_{\mathrm q}}(A)\sim-\kappa_\nu\left(A/\beta_{\mathrm q}^{2\nu}\right)^{\chi_\nu}\qquad(A\to+\infty),

with

limν1/2+χν=1,limν1χν=+.\lim_{\nu\to1/2^+}\chi_\nu=1,\qquad\lim_{\nu\to1^-}\chi_\nu=+\infty.

The exponent greater than one for ν>1/2\nu>1/2 is intended to ensure existence for all cosmological constants; the claimed tail is motivated by limiting cases and saddle-point analysis.

Sources & referencesView supporting material

Primary source

Frank Ferrari, “Random Disks of Constant Curvature: the Lattice Story”, arXiv:2406.06875 (2024).

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