Square grid Ising polynomials

This page contains the data and programs from the paper

Computation of the Ising partition function for 2-dimensional square grids by R. Häggkvist, A. Rosengren, D. Andrén, P. Kundrotas, P.H. Lundow, K. Markström

Physical Review E. 2004, Vol 69, No 4

LICENCE NOTE

All data and programs on this page are free to download and use for noncommercial
purposes, under the condition that our paper and this homepage is cited in any
published work where these data have been used.

Programs

The mathematica notebook from Appendix B

The notebook below contains an implementation of the Galois method from our paper.
This implementation is not optimised for speed and is intended as an example to help
those wishing to make their own implemenatation.
Galois.nb

Ising polynomials for the cyclic grid with side N All files below are gziped plain ASCII.
Each line in a file is of the form coefficient exponent
The last line of each file is 0 0

N=4 Exact Numerical

N=8 Exact Numerical

N=12 Exact Numerical

N=16 Exact Numerical

N=20 Exact Numerical

N=24 Exact Numerical

N=28 Exact Numerical

N=32 Exact Numerical

N=36 Exact Numerical

N=40 Exact Numerical

N=44 Exact Numerical

N=48 Exact Numerical