Universal ratios in the 2D tricritical ising model
We consider the universality class of the two-dimensional tricritical Ising model. The scaling form of the free energy leads to the definition of universal ratios of critical amplitudes which may have experimental relevance. We compute these universal ratios by a combined use of results coming from perturbed conformal field theory, integrable quantum field theory, and numerical methods.
Fioravanti
D
International School for Advanced Studies, Via Beirut 2-4, 34014 Trieste, Italy and Instituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste, Italy.
Mussardo
G
Simon
P