Finite-Size analysis of the 4-d abelian surface gauge model

Details Finite-Size analysis of the 4-d abelian surface gauge model Finite-Size analysis of the 4-d abelian surface gauge model

1994-05-25

arxiv.org/abs/hep-lat/9405023v1

Phys.Lett. B333 (1994) 445-451

Physics

High Energy Physics

High Energy Physics - Lattice

16pp

Scientific paper

10.1016/0370-2693(94)90165-1

We present the results of a finite-size analysis of the four dimensional abelian surface gauge model. This model is defined assigning abelian variables to the plaquettes of an hypercubical lattice, and is dual to the four dimensional Ising model. This last model is known to present a second order phase transition with mean field critical exponents. We have performed Monte Carlo simulations on several lattice sizes and high statistics. The analysis of the partition function zeroes and the specific heat scaling behaviour allowed us to estimate the critical coupling $\beta_c$ as well as the critical exponents $\nu$ and $\alpha$. Our results are consistent with the second order critical exponents $\nu = 1/2$ and $\alpha = 0$. The $\beta_c$ value is in perfect agreement with duality predictions from the 4-d Ising model. Nevertheless, the energy histograms show a seemingly non-vanishing double peak structure. The interface tension analysis suggests that this may be a finite size effect.

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