M. Svendsen et Hc. Fogedby, PHASE-SHIFT ANALYSIS OF THE LANDAU-LIFSHITZ EQUATION, Journal of physics. A, mathematical and general, 26(7), 1993, pp. 1717-1730
We derive the complete spectrum of the Landau-Lifshitz equation using
the Hirota method. Subsequently, we perform a phase shift analysis of
spin-wave-kink and spin-wave-breather collisions, respectively. Finall
y, we use this result in order to derive the spin wave density of stat
es in the presence of an arbitrary number of solitons.