First-order transitions for very nonlinear sigma models

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In this contribution we discuss the occurrence of first-order transitions in temperature in various short-range lattice models with a rotation symmetry. Such transitions turn out to be widespread under the condition that the interaction potentials are sufficiently nonlinear.
Contribution to the Dublin John Lewis memorial meeting

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Statistical Mechanics, Mathematical Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/100601

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0506730
 http://arxiv.org/abs/cond-mat/0506730

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arXiv