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.
Non-Perturbative Methods in (1+1) Dimensional Quantum Field Theory / Mussardo, Giuseppe. - 843(2012), pp. 333-368.
Titolo: | Non-Perturbative Methods in (1+1) Dimensional Quantum Field Theory |
Autori: | Mussardo, Giuseppe |
Serie: | |
Titolo del libro: | Modern theories of many-particle systems in condensed matter physics |
Volume: | 843 |
Data di pubblicazione: | 2012 |
Pagina iniziale: | 333 |
Pagina finale: | 368 |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/978-3-642-10449-7_8 |
Appare nelle tipologie: | 2.1 Book chapter |