Proof of the Triviality of ϕd4 Field Theory and Some Mean-Field Features of Ising Models for d>4
Abstract
It is rigorously proved that the continuum limits of Euclidean ϕ4d lattice fields are free fields in d>4. An exact geometric characterization of criticality in Ising models is introduced, and used to prove other mean-field features for d>4 and hyperscaling in d=2.
- Publication:
-
Physical Review Letters
- Pub Date:
- July 1981
- DOI:
- 10.1103/PhysRevLett.47.1
- Bibcode:
- 1981PhRvL..47....1A
- Keywords:
-
- 03.50.-z;
- 05.50.+q;
- 11.10.-z;
- Classical field theories;
- Lattice theory and statistics;
- Field theory