Bohr-Sommerfeld quantization of spin Hamiltonians
Mesoscale and Nanoscale Physics
2009-11-10 v1
Abstract
The Bohr-Sommerfeld rule for a spin system is obtained, including the first quantum corrections. The rule applies to both integer and half-integer spin, and respects Kramers degeneracy for time-reversal invariant systems. It is tested for various models, in particular the Lipkin-Meshkov-Glick model, and found to agree very well with exact results.
Keywords
Cite
@article{arxiv.cond-mat/0304125,
title = {Bohr-Sommerfeld quantization of spin Hamiltonians},
author = {Anupam Garg and Michael Stone},
journal= {arXiv preprint arXiv:cond-mat/0304125},
year = {2009}
}
Comments
Revtex 4, no figures, 1 table