- 99-329 M Moser, A Prets and W L Spitzer
- Time Evolution of Spin Waves
(20K, Rev-Tex)
Sep 10, 99
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Abstract. A rigorous derivation of macroscopic spin-wave equations is
demonstrated. We introduce a macroscopic mean-field limit and derive
the so-called Landau-Lifshitz equations for spin waves. We first discuss
the ferromagnetic Heisenberg model at $T=0$ and finally extend our
analysis to general spin hamiltonians for the same class of
ferromagnetic ground states.
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