Finite-lattice extrapolations for the ground-state energies of antiferromagnetic Heisenberg rings
- 1 December 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 34 (11) , 8125-8128
- https://doi.org/10.1103/physrevb.34.8125
Abstract
The sequence-transformation method due to Vanden Broeck and Schwartz is used to accelerate the convergence of numerical finite-lattice data on ground-state energies to their infinite-lattice limit. Highly accurate estimates of the ground-state energy are obtained for the antiferromagnetic Heisenberg and rings. The ground-state energy of the antiferromagnetic Heisenberg ring is also estimated accurately.
Keywords
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