A continuum approximation for the excitations of the (1,1,...,1) interface in the quantum Heisenberg model

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58394It is shown that, with an appropriate scaling, the energy of low-lying excitations of the (1,1,...,1) interface in the $d$-dimensional quantum Heisenberg model are given by the spectrum of the $d-1$-dimensional Laplacian on an suitable domain.Latex, 12 pagesMathematical PhysicsStatistical MechanicsAnalysis of PDEs82B10;82B24;82D40A continuum approximation for the excitations of the (1,1,...,1) interface in the quantum Heisenberg modeltext