Antisymmetric and other subleading corrections to scaling in the local potential approximation

Details Antisymmetric and other subleading corrections to scaling in the local potential approximation Antisymmetric and other subleading corrections to scaling in the local potential approximation

2001-12-02

arxiv.org/abs/hep-lat/0112001v2

Nucl.Phys. B636 (2002) 601-610

Physics

High Energy Physics

High Energy Physics - Lattice

12 pages, 3 Postscript figures, uses epsf

Scientific paper

For systems in the universality class of the three-dimensional Ising model we compute the critical exponents in the local potential approximation (LPA), that is, in the framework of the Wegner-Houghton equation. We are mostly interested in antisymmetric corrections to scaling, which are relatively poorly studied. We find the exponent for the leading antisymmetric correction to scaling $\omega_A \approx 1.691$ in the LPA. This high value implies that such corrections cannot explain asymmetries observed in some Monte Carlo simulations.

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