• Corpus ID: 119281455

Low-Temperature Spin-Wave Approximation for the Heisenberg Ferromagnet

@article{Correggi2016LowTemperatureSA,
  title={Low-Temperature Spin-Wave Approximation for the Heisenberg Ferromagnet},
  author={Michele Correggi and Alessandro Giuliani and Robert Seiringer},
  journal={arXiv: Mathematical Physics},
  year={2016}
}
We study the low temperature thermodynamics of the quantum Heisenberg ferromagnet in three dimension for any value of the spin $ S \geq 1/2 $. 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 $ \beta \to \infty $. 
1 Citations
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