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Phase transitions in the Ashkin-Teller model |
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| Authors: | C. -E. Pfister |
| Affiliation: | (1) Dèpartement de Mathèmatiques, Ecole Polytechnique Fèdèrale, 61 Av. de Cour, CH-1007 Lausanne, Switzerland |
| Abstract: | For some values of the coupling constants, a proof of the existence of two phase transitions in the Ashkin-Teller model is given. Only correlation inequalities are used. |
| Keywords: | Ashkin-Teller model phase transitions correlation inequalities |
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