On the space of quantum fields in massive two-dimensional theories
High Energy Physics - Theory
2008-11-26 v1
Abstract
For a large class of integrable quantum field theories we show that the S-matrix determines a space of fields which decomposes into subspaces labeled, besides the charge and spin indices, by an integer k. For scalar fields k is non-negative and is naturally identified as an off-critical extension of the conformal level. To each particle we associate an operator acting in the space of fields whose eigenvectors are primary (k=0) fields of the massive theory. We discuss how the existing results for models as different as Z_n, sine-Gordon or Ising with magnetic field fit into this classification.
Cite
@article{arxiv.0806.1883,
title = {On the space of quantum fields in massive two-dimensional theories},
author = {Gesualdo Delfino},
journal= {arXiv preprint arXiv:0806.1883},
year = {2008}
}
Comments
17 pages