Global defects in theories with Lorentz symmetry violation

Musongela Lubo
Phys. Rev. D 71, 047701 – Published 25 February 2005

Abstract

We study global topological defects in the Jacobson-Corley model which breaks Lorentz symmetry and involves up to fourth order derivatives. There is a window in the parameter space in which no solution exists. Otherwise, different profiles are allowed for the same values of the parameters. For a scale of Lorentz violation much higher than the scale of gauge symmetry breaking, the energy densities are higher, of the same order or smaller than in the usual case for domain walls, cosmic strings, and hedgehogs, respectively. Possible cosmological implications are suggested.

  • Received 6 October 2004

DOI:https://doi.org/10.1103/PhysRevD.71.047701

©2005 American Physical Society

Authors & Affiliations

Musongela Lubo*

  • The Abdus Salam International Centre for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy

  • *Email address: muso@ictp.trieste.it

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Issue

Vol. 71, Iss. 4 — 15 February 2005

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