1996/07/08 by Mika Karjalainen, Janne Peisa
Physics and Astronomy · #hep-lat
published as Z.Phys. C76 (1997) 319-326 · 29 pages, 13 Postscript figures, LaTeX
arxiv created 1996/07/08 · arxiv updated 2009/12/01
We apply dimensional reduction to the finite temperature U(1)+Higgs theory and study the properties of the reduced 3-dimensional theory in the broken phase using lattice Monte Carlo simulations. We compute analytically the scalar condensate in optimized 2-loop perturbation theory and the correlators in 1-loop perturbation theory. These quantities are also calculated numerically. The two results for the condensate agree well but a 25% difference is observed for the scalar correlator, indicating the need for optimized 2-loop perturbative results.