Charge screening in the Higgs phase of Chern-Simons electrodynamics

Details Charge screening in the Higgs phase of Chern-Simons electrodynamics Charge screening in the Higgs phase of Chern-Simons electrodynamics

1993-03-26

arxiv.org/abs/hep-th/9303150v1

Phys.Rev.Lett. 71 (1993) 2383-2386

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, LATEX file, ITFA 93-05 and ITEP-M-1/93

Scientific paper

10.1103/PhysRevLett.71.2383

Though screened at large distances, a point-like electric charge can still participate in a long-range electromagnetic interaction in the Higgs phase, namely that with the Aharonov-Bohm field produced by a localized magnetic flux. We show that this follows from the fact that the screening charge, induced in the presence of a Higgs condensate, does not interact with the Aharonov-Bohm field. The same phenomenon occurs, if a Chern-Simons term is incorporated in the action. This observation provides a physical basis for the recently proposed classification of the superselection sectors of this model in terms of a quasi-Hopf algebra.

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