Upper Bounds on the Critical Temperature of the Ashkin-Teller Model
Starting from correlation identities for the Ashkin-Teller model and using correlation inequalities, we obtain rigorous upper bounds on the critical temperatures. The results were obtained in hexagonal, square, and cubic lattices and improve over effective field type calculations. The rigorous upper...
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| Vydáno v: | Brazilian Journal of Physics |
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| Hlavní autoři: | , |
| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
Sociedade Brasileira de Física
2016
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| Témata: | |
| On-line přístup: | https://www.redalyc.org/articulo.oa?id=46443233009 |
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