44 citations · 139 across the 10 of their papers we have counts for
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cond-mat.stat-mech2004
Universality and non-universality in the Ashkin-Teller model
A. Giuliani
The Ashkin-Teller model can be formulated as a pair of 2D Ising models, interacting via a four-spin interaction. I consider the case of weak anisotropy (slight a-symmetry between t…
cond-mat.stat-mech2004★ 22 cited
Anomalous critical exponents in the anisotropic Ashkin-Teller model
A. Giuliani, V. Mastropietro
We perform a rigorous computation of the specific heat of the Ashkin-Teller model in the case of small interaction and we explain how the universality-nonuniversality crossover is…
cond-mat.stat-mech2004★ 36 cited
Anomalous universality in the anisotropic Ashkin-Teller model
A. Giuliani, V. Mastropietro
The Ashkin-Teller (AT) model is a generalization of Ising 2-d to a four states spin model; it can be written in the form of two Ising layers (in general with different couplings) i…