Study of the 2/d Ising model with mixed perturbation
Abstract
We study the thermodynamical observables of the 2d Ising model in the neighborhood of the magnetic axis by means of numerical diagonalization of the transfer matrix. In particular, we estimate the leading order corrections to the Zamolodchikov mass spectrum and find evidence of nonvanishing contributions due to the stressenergy tensor.
 Publication:

Nuclear Physics B
 Pub Date:
 February 2003
 DOI:
 10.1016/S05503213(02)010908
 arXiv:
 arXiv:hepth/0208016
 Bibcode:
 2003NuPhB.651..387G
 Keywords:

 High Energy Physics  Theory;
 Statistical Mechanics
 EPrint:
 Revised version, typos corrected, reference added. LaTeX 27 pages