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The Allen-Cahn equation with generic initial datum

Analysis of PDEs 2022-01-24 v1 Probability

Abstract

We consider the Allen-Cahn equation tuΔu=uu3\partial_t u- \Delta u=u-u^3 with a rapidly mixing Gaussian field as initial condition. We show that provided that the amplitude of the initial condition is not too large, the equation generates fronts described by nodal sets of the Bargmann-Fock Gaussian field, which then evolve according to mean curvature flow.

Cite

@article{arxiv.2201.08426,
  title  = {The Allen-Cahn equation with generic initial datum},
  author = {Martin Hairer and Khoa Lê and Tommaso Rosati},
  journal= {arXiv preprint arXiv:2201.08426},
  year   = {2022}
}
R2 v1 2026-06-24T08:57:09.904Z