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

It 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 a suitable domain.

Bibliographic Details
Main Authors: Oscar Bolina, Pierluigi Contucci, Bruno Nachtergaele, Shannon Starr
Format: Article
Language:English
Published: Texas State University 2000-07-01
Series:Electronic Journal of Differential Equations
Subjects:
Online Access:http://ejde.math.txstate.edu/conf-proc/04/b1/abstr.html