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On the mean-field equations for ferromagnetic spin systems

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 نشر من قبل Per von Soosten
 تاريخ النشر 2021
  مجال البحث فيزياء
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We derive mean-field equations for a general class of ferromagnetic spin systems with an explicit error bound in finite volumes. The proof is based on a link between the mean-field equation and the free convolution formalism of random matrix theory, which we exploit in terms of a dynamical method. We present three sample applications of our results to Ka{c} interactions, randomly diluted models, and models with an asymptotically vanishing external field.



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