Low-Temperature Spin-Wave Approximation for the Heisenberg Ferromagnet
Mathematical Physics
2016-02-02 v1 math.MP
Abstract
We study the low temperature thermodynamics of the quantum Heisenberg ferromagnet in three dimension for any value of the spin . We report on a rigorous proof of the validity of the spin-wave approximation for the excitation spectrum, at the level of the first non-trivial contribution to the free energy as the inverse temperature .
Cite
@article{arxiv.1602.00155,
title = {Low-Temperature Spin-Wave Approximation for the Heisenberg Ferromagnet},
author = {M. Correggi and A. Giuliani and R. Seiringer},
journal= {arXiv preprint arXiv:1602.00155},
year = {2016}
}
Comments
Contribution to the proceedings of ICMP2015, Santiago de Chile, July 27 -- August 1, 2015