Tests of Conformal Field Theory at the Yang-Lee Singularity
Statistical Mechanics
2015-05-14 v1
Abstract
This paper studies the Yang-Lee edge singularity of 2-dimensional (2D) Ising model based on a quantum spin chain and transfer matrix measurements on the cylinder. Based on finite-size scaling, the low-lying excitation spectrum is found at the Yang-Lee edge singularity. Based on transfer matrix techniques, the single structure constant is evaluated at the Yang-Lee edge singularity. The results of both types of measurements are found to be fully consistent with the predictions for the (A4;A1)minimal conformal field theory, which was previously identified with this critical point.
Keywords
Cite
@article{arxiv.0912.3654,
title = {Tests of Conformal Field Theory at the Yang-Lee Singularity},
author = {Tomasz Wydro and John F. McCabe},
journal= {arXiv preprint arXiv:0912.3654},
year = {2015}
}