High-precision estimate of g4 in the 2D Ising model
High Energy Physics - Theory
2008-11-26 v2 Statistical Mechanics
High Energy Physics - Lattice
Abstract
We compute the renormalized four-point coupling in the 2d Ising model using transfer-matrix techniques. We greatly reduce the systematic uncertainties which usually affect this type of calculations by using the exact knowledge of several terms in the scaling function of the free energy. Our final result is g4=14.69735(3).
Cite
@article{arxiv.hep-th/0003049,
title = {High-precision estimate of g4 in the 2D Ising model},
author = {Michele Caselle and Martin Hasenbusch and Andrea Pelissetto and Ettore Vicari},
journal= {arXiv preprint arXiv:hep-th/0003049},
year = {2008}
}
Comments
17 pages, revised version with minor changes, accepted for publication in Journal of Physics A