Antiferromagnetic 4-d O(4) Model

Isabel Campos; Luis A. Fernandez; Alfonso Tarancon

doi:10.1103/physrevd.55.2965

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arXiv · hep-lat/9606017

Antiferromagnetic 4-d O(4) Model

Isabel Campos·Luis A. Fernandez·Alfonso Tarancon

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Abstract

We study the phase diagram of the four dimensional O(4) model with first (beta1) and second (beta2) neighbor couplings, specially in the beta2 < 0 region, where we find a line of transitions which seems to be second order. We also compute the critical exponents on this line at the point beta1 =0 (F4 lattice) by Finite Size Scaling techniques up to a lattice size of 24, being these exponents different from the Mean Field ones.

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Isabel Campos, Luis A. Fernandez, Alfonso Tarancon. 1996-12-11. Antiferromagnetic 4-d O(4) Model. https://doi.org/10.1103/physrevd.55.2965

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