We use scale invariant scattering theory to exactly determine the lines of renormalization group fixed points invariant under the permutational symmetry S-q in two dimensions, and we show how one of these scattering solutions describes the ferromagnetic and square lattice antiferromagnetic critical lines of the q-state Potts model. Other solutions we determine should correspond to new critical lines. In particular, we obtain that a S-q-invariant fixed point can be found up to the maximal value q = (7 + root 17)/2. This is larger than the usually assumed maximal value 4 and leaves room for a second-order antiferromagnetic transition at q = 5.
Classifying Potts critical lines / Delfino, Gesualdo; Tartaglia, Elena. - In: PHYSICAL REVIEW. E. - ISSN 2470-0045. - 96:4(2017), pp. 1-8.
Titolo: | Classifying Potts critical lines |
Autori: | Delfino, Gesualdo; Tartaglia, Elena |
Rivista: | |
Data di pubblicazione: | 2017 |
Volume: | 96 |
Fascicolo: | 4 |
Pagina iniziale: | 1 |
Pagina finale: | 8 |
Numero di Articolo: | 042137 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevE.96.042137 |
URL: | https://arxiv.org/abs/1707.00998 |
Appare nelle tipologie: | 1.1 Journal article |
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