Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1997-10-06
Journal of Physics A 31 (1998) 1667-1683
Physics
Condensed Matter
Statistical Mechanics
21 pages, latex, no figures
Scientific paper
10.1088/0305-4470/31/7/004
We determine the transition amplitude for multi-magnon scattering induced
through an inhomogeneous distribution of the coupling constant in the
ferromagnetic XXX-model. The two and three particle amplitudes are explicitely
calculated at small momenta. This suggests a rather plausible conjecture also
for a formula of the general n-particle amplitude.
Albert T.-D.
Flume Rainald
Ruhlig K.
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