Scaling in the two-dimensional U(1)--Higgs model
Hermann Dilger, Jochen Heitger
Abstract
We study the continuum limit of the 2D U(1)--Higgs model with variable scalar field length, which is qualitatively different from the fixed length case. Our simulations concentrate on the scaling behaviour of the topological susceptibility, and an instanton-induced confinement mechanism of fractional charges is numerically confirmed.
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