The Hessian of surface tension characterises scaling limit of gradient models with non-convex energy
arXiv (Cornell University)(2023)
摘要
We study the scaling limit of statistical mechanics models with non-convex Hamiltonians that are gradient perturbations of Gaussian measures. Characterising features of our gradient models are the imposed boundary tilt and the surface tension (free energy) as a function of tilt. In the regime of low temperatures and bounded tilt, we prove the scaling limit for macroscopic functions on the torus, and we show that the limit is a continuum Gaussian Free Field with covariance (diffusion) matrix given as the Hessian of surface tension. Our proof of this longstanding conjecture complements recent studies in [Hil16], [ABKM].
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关键词
hessian,surface tension,gradient,non-convex
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