Mean-field expansion for spin models with medium-range interactions

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dc.creatorPelissetto, A.
dc.creatorRossi, P.
dc.creatorVicari, E.
dc.date1999-03-29
dc.date.accessioned2026-07-07T11:34:16Z
dc.date.available2026-07-07T11:34:16Z
dc.descriptionWe study the critical crossover between the Gaussian and the Wilson-Fisher fixed point for general O(N)-invariant spin models with medium-range interactions. We perform a systematic expansion around the mean-field solution, obtaining the universal crossover curves and their leading corrections. In particular we show that, in three dimensions, the leading correction scales as $R^{-3}, R$ being the range of the interactions. We compare our results with the existing numerical ones obtained by Monte Carlo simulations and present a critical discussion of other approaches.
dc.description49 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/9903410
dc.identifierhttp://arxiv.org/abs/cond-mat/9903410
dc.identifierNucl.Phys.B554:552,1999
dc.identifierdoi:10.1016/S0550-3213(99)00311-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/198190
dc.subjectStatistical Mechanics
dc.subjectHigh Energy Physics - Lattice
dc.titleMean-field expansion for spin models with medium-range interactions
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