In recent years there has been an enormous progress in low-dimensional quantum field theory. The most important results concern the conformal properties of the critical points of the Renormalization Group and the scaling region nearby. In this respect a crucial role is played by integrable deformations of Conformal Field Theories, which can be solved using bootstrap methods coming from S-matrix theory. In these lectures I present the Form-Factor Approach to the computation of correlation functions. Non-perturbative methods of both Conformal and Integrable Field Theories find remarkable applications in low-dimensional quantum systems.
|Titolo:||Non-Perturbative Methods in (1+1) Dimensional Quantum Field Theory|
|Titolo del libro:||Modern theories of many-particle systems in condensed matter physics|
|Data di pubblicazione:||2012|
|Digital Object Identifier (DOI):||10.1007/978-3-642-10449-7_8|
|Appare nelle tipologie:||2.1 Book chapter|