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Phys. Rev. D 78, 085008 (2008) [21 pages]

One-loop corrections to the string tension of the vortex in the Abelian Higgs model

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Jurgen Baacke*
Fachbereich Physik, Technische Universität Dortmund. D–44221 Dortmund, Germany

Nina Kevlishvili
Dipartimento di Fisica, Universita degli studi di Ferrara, I-44100 Ferrara, Italy,
INFN, Sezione di Ferrara, I-44100 Ferrara, Italy,
and Andronikashvili Institute of Physics, GAS, 0177 Tbilisi, Georgia

See Also: Erratum

Received 3 July 2008; published 13 October 2008

We present an exact numerical computation of the one-loop correction of the string tension for the Nielsen-Olesen vortex in the Abelian Higgs model. The computation proceeds via the computation of the Euclidean Green’s function for the gauge, Higgs, and Faddeev-Popov fields using mode functions, and taking the appropriate trace. Renormalization is an essential part of this computation. It is done by removing leading order contributions from the numerical results so as to make these finite, and to add the divergent parts back, after suitable regularization and renormalization. We encounter and solve some problems which are specific to gauge theories and topological solutions. The corrections to the energy are found to be sizable, but still smaller than the classical energy as long as g2 is smaller than unity.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.78.085008
DOI:
10.1103/PhysRevD.78.085008
PACS:
11.15.Kc, 11.27.+d, 98.80.Cq

*juergen.baacke@tu-dortmund.de

nkevli@fe.infn.it

See Also

Erratum: Jürgen Baacke and Nina Kevlishvili, Erratum: One-loop corrections to the string tension of the vortex in the Abelian Higgs model [Phys. Rev. D 78, 085008 (2008)], Phys. Rev. D 82, 129905 (2010).

See Also: Jürgen Baacke, One-loop corrections to the Nielsen-Olesen vortex: Collective oscillations, Phys. Rev. D 83, 045028 (2011).

See Also: Jürgen Baacke, One-loop corrections to the Nielsen-Olesen vortex: Finite length, Phys. Rev. D 83, 125012 (2011).