Symmetry Breaking, Duality and Fine-Tuning in Hierarchical Spin Models
arXiv:hep-lat/9910027 · doi:10.1016/S0920-5632(00)91781-X
Abstract
We discuss three questions related to the critical behavior of hierarchical spin models: 1) the hyperscaling relations in the broken symmetry phase; 2) the combined use of dual expansions to calculate the non-universal quantities; 3) the fine-tuning issue in approximately supersymmetric models.
3 pages, 1 figure, Lattice99 (spin)