Twist Boundary Conditions of Quantum Spin Chains near the Gaussian Fixed Points
Condensed Matter
2009-10-28 v1
Abstract
Duality transformation, which relates a high-temperature phase to a low-temperature one, is used exactly to determine the critical point for several models (2D Ising, Potts, Ashkin-Teller, 8-vertex), as the self dual condition. By changing boundary condition, numerically we can determine the self-dual(critical) point of the Ashkin-Teller(or Gaussian) model. This is the first explicit application of the duality to the numerical calculation, with the use of boundary conditions.
Keywords
Cite
@article{arxiv.cond-mat/9607161,
title = {Twist Boundary Conditions of Quantum Spin Chains near the Gaussian Fixed Points},
author = {A. Kitazawa},
journal= {arXiv preprint arXiv:cond-mat/9607161},
year = {2009}
}
Comments
9 pages, Latex, 2 figures on request, TITCMT-96-7