Abstract
An approximation method, based on dimer coverings, for the ground state of the antiferromagnetic Heisenberg lattice is described. The working of the method is demonstrated by some small-system calculations. The method introduces a possible mechanism for symmetry breaking for two- and higher-dimensional systems.
Original language | English |
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Pages (from-to) | 360-373 |
Journal | Physica A |
Volume | 142 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1987 |