Monopole Currents in U(1) Lattice Gauge Theory: A Comparison to an Effective Model based on Dual Superconductivity

Details Monopole Currents in U(1) Lattice Gauge Theory: A Comparison to an Effective Model based on Dual Superconductivity Monopole Currents in U(1) Lattice Gauge Theory: A Comparison to an Effective Model based on Dual Superconductivity

1995-08-17

arxiv.org/abs/hep-lat/9508017v1

Phys.Lett.B358:325-331,1995

Physics

High Energy Physics

High Energy Physics - Lattice

11 pages, latex (file paper.tex), figures included in 13 separate .tex- and .eps-files, to appear in Phys.Lett.B; complete pos

Scientific paper

10.1016/0370-2693(95)01013-G

We compare U(1) lattice gauge theory to an effective model of Maxwell and London equations. In the effective model there is only one free parameter, the London penetration depth lambda. It turns out that one can get good agreement between both models if one modifies the usual definition of magnetic monopole currents in U(1) lattice gauge theory. This comparison also shows that already at small distances fluctuations of the occuring string are important. Further, we investigate the beta-dependence of the penetration depth and determine the suppression of the monopole condensate in flux tubes.

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