Author: Vieri Mastropietro, university of Rome
Title: Developments in the theory of universality
Abstract: Recently a rigorous foundation of several aspects of the theory
of universality for statistical mechanics models
with continuously varying exponents (among which are
interacting planar Ising models, quantum spin chains and 1D Fermi
systems), has been reached; it has its root in the mapping of such systems
into fermionic interacting theories, and uses the modern
Renormalization Group methods developed in the context of
constructive Quantum Field Theory. No use of exact solutions is done
and the analysis applies either to solvable or not solvable models.