The intrinsic coupling in integrable quantum field theories

@article{Balog2000TheIC,
title={The intrinsic coupling in integrable quantum field theories},
author={J'anos Balog and M. Niedermaier and Ferenc Niedermayer and Adrian Patrascioiu and Erhard Seiler and Peter Weisz},
journal={Nuclear Physics},
year={2000},
volume={583},
pages={614-670}
}

We compute the 2n-point coupling constants in the high-temperature phase of
the 2d Ising model by using transfer-matrix techniques. This provides the first
few terms of the expansion of the… Expand

We investigate the tricritical Ising model in a complex magnetic field in order to characterize the analytic structure of its free energy. By supplementing analytic methods with the truncation of… Expand

The two-dimensional Ising model is the simplest model of statistical mechanics exhibiting a second-order phase transition. While in absence of magnetic field it is known to be solvable on the lattice… Expand

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… Expand

The results of the renormalization group are commonly advertised as the existence of power law singularities near critical points. The classic predictions are often violated and logarithmic and… Expand

We discuss the analytic properties of the Callan-Symanzik β-function β(g) associated with the zero-momentum four-point coupling g in the two-dimensional 4 model with O(N) symmetry. Using… Expand

For the study of Ising models of general spin S on the square lattice, we have combined our recently extended high-temperature expansions with the low-temperature expansions derived some time ago by… Expand