most citedThermodynamics of the two--dimensional O(3) non linear sigma model with Fixed-Point lattice action

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hep-lat1996★ 10 cited

Thermodynamics of the two--dimensional O(3) non linear sigma model with Fixed-Point lattice action

S. P. Spiegel

We calculate the free energy density of the two dimensional O(3) non linear sigma model over a large temperature region. At high temperatures the calculations could be done by pert…