AKLT Model

The AKLT model is an extension of the one-dimensional quantum Heisenberg spin model. The proposal and exact solution of this model by Affleck, Lieb, Kennedy and Tasaki provided crucial insight into the physics of the spin-1 Heisenberg chain. It has also served as a useful testbed for such concepts as valence bond solid order, symmetry protected to...
Found on http://en.wikipedia.org/wiki/AKLT_Model
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