ISSN:
1572-9613
Keywords:
Lattice statistics
;
series expansions
;
corner transfer matrices
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have studied the hard-square lattice gas, using corner transfer matrices. In particular, we have obtained the first 24 terms of the high-density series for the order parameterρ 2−ρ 1. From these we estimate the critical activity to be 3.7962±0.0001. This is in excellent agreement with the earlier work of Gaunt and Fisher. It conflicts with the value 4.0 given by Müller-Hartmann and Zittartz's formula for the critical point of the antiferromagnetic Ising model in a field, so we conclude that this formula, while a good approximation, is not exact.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01012867
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