AKLT model
Model in topological quantum mechanics / From Wikipedia, the free encyclopedia
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In condensed matter physics, an AKLT model, also known as an Affleck-Kennedy-Lieb-Tasaki model is an extension of the one-dimensional quantum Heisenberg spin model. The proposal and exact solution of this model by Ian Affleck, Elliott H. Lieb, Tom Kennedy and Hal Tasaki [ja][1] provided crucial insight into the physics of the spin-1 Heisenberg chain.[2][3][4][5] It has also served as a useful example for such concepts as valence bond solid order, symmetry-protected topological order[6][7][8][9] and matrix product state wavefunctions.