Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1998-09-10
Computers in Physics 11, 36 (1997)
Physics
Condensed Matter
Statistical Mechanics
8 pages, 4 figures
Scientific paper
The Bethe ansatz for the one-dimensional s=1/2 Heisenberg ferromagnet is introduced at an elementary level. The presentation follows Bethe's original work very closely. A detailed description and a complete classification of all two-magnon scattering states and two-magnon bound states are given for finite and infinite chains. The paper is designed as a tutorial for beginning graduate students. It includes 10 problems for further study.
Karbach Michael
Müller Gerhard
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