Finite Size Scaling of Probability Distributions in SU(2) Lattice Gauge Theory and Phi^4 Field Theory

Details Finite Size Scaling of Probability Distributions in SU(2) Lattice Gauge Theory and Phi^4 Field Theory Finite Size Scaling of Probability Distributions in SU(2) Lattice Gauge Theory and Phi^4 Field Theory

1992-07-29

arxiv.org/abs/hep-lat/9207031v1

Physics

High Energy Physics

High Energy Physics - Lattice

26 pages, UCD-92-17

Scientific paper

For a system near a second order phase transition, the probability distribution for the order parameter can be given a finite size scaling form. This fact is used to compare the finite temperature phase transition for the Wilson lines in d=3+1 SU(2) lattice gauge theory with the phase transition in d=3 phi^4 field theory. I exhibit the finite size scaled probability distributions in the form of a function of two variables (the reduced `temperature' and the magnetization) for both models. The two surfaces look identical, and an analysis of the errors also suggests that they are the same. This strengthens the idea that the SU(2) effective line theory is in the Ising universality class. I argue for the wider application of the method used here.

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