Quasi-asymptotic freedom in the two-dimensional O(3) model
Physics Department, University of Arizona - Tucson, AZ 85721, USA
Accepted: 2 April 2001
The behavior of the renormalized spin 2-point function in the O(3) and dodecahedron spin model are investigated numerically. The Monte Carlo data show excellent agreement between the two models. The short-distance behavior comes very close to standard theoretical expectations, yet it differs significantly from it. A possible explanation of this situation is offered.
PACS: 11.15.Bt – General properties of perturbation theory / 11.15.Ha – Lattice gauge theory / 75.10.Hk – Classical spin models
© EDP Sciences, 2001