Scaling and Density of Lee-Yang Zeroes in the Four Dimensional Ising Model

Abstract

The scaling behaviour of the edge of the Lee--Yang zeroes in the four dimensional Ising model is analyzed. This model is believed to belong to the same universality class as the ${\varphi }_4^4$ model which plays a central role in relativistic quantum field theory. While in the thermodynamic limit the scaling of the Yang--Lee edge is not modified by multiplicative logarithmic corrections, such corrections are manifest in the corresponding finite--size formulae. The asymptotic form for the density of zeroes which recovers the scaling behaviour of the susceptibility and the specific heat in the thermodynamic limit is found to exhibit logarithmic corrections too. The density of zeroes for a finite--size system is examined both analytically and numerically.

arXiv comment17 pages (4 figures), LaTeX + POSTSCRIPT-file, preprint UNIGRAZ-UTP 20-11-93

References in corpus (2)

• Renormalization Group Analysis of Finite-Size Scaling in the ${\Phi }_4^4$ Model
• Lee-Yang Zeroes and Logarithmic Corrections in the ${\Phi }_4^4$ Theory

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