Exact Critical Point and Critical Exponents of O(n) Models in Two Dimensions
Abstract
A two-dimensional n-component spin model with cubic or isotropic symmetry is mapped onto a solid-on-solid model. Subject to some plausible assumptions this leads to an analytic calculation of the critical point and some critical indices for -2<=n<=2.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1982
- DOI:
- 10.1103/PhysRevLett.49.1062
- Bibcode:
- 1982PhRvL..49.1062N
- Keywords:
-
- 05.50.+q;
- 64.60.Cn;
- 64.60.Fr;
- 75.40.Fa;
- Lattice theory and statistics;
- Order-disorder transformations;
- statistical mechanics of model systems;
- Equilibrium properties near critical points critical exponents