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Observation of the Meissner effect in a lattice Higgs model

Poul H. Damgaard, Urs M. Heller

DOI 10.1103/PhysRevLett.60.1246 · Physical Review Letters

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Abstract

The lattice-regularized U(1) Higgs model in an external electromagnetic field is studied by Monte Carlo techniques. In the Coulomb phase magnetic flux can flow through uniformly. The Higgs phase splits into a region where magnetic flux can penetrate only in the form of vortices and a region where the magnetic flux is completely expelled, the relativistic analog of the Meissner effect in superconductivity. We present evidence for symmetry restoration in strong external fields.

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