Cluster-variation-Padé-approximant method for the simple cubic Ising model
Abstract
The cluster-variation-Padé-approximant method is a recently proposed tool, based on the extrapolation of low- and high-temperature results obtained with the cluster-variation method, for the determination of critical parameters in Ising-like models. Here the method is applied to the three-dimensional simple cubic Ising model, and new results, obtained with an 18-site basic cluster, are reported. Other techniques for extracting nonclassical critical exponents are also applied and their results compared with those by the cluster-variation-Padé-approximant method.
- Publication:
-
Physical Review E
- Pub Date:
- May 2000
- DOI:
- 10.1103/PhysRevE.61.4915
- arXiv:
- arXiv:cond-mat/9910294
- Bibcode:
- 2000PhRvE..61.4915P
- Keywords:
-
- 05.50.+q;
- Lattice theory and statistics;
- Condensed Matter - Statistical Mechanics
- E-Print:
- 8 RevTeX pages, 3 PostScript figures