Semi-local strings and monopoles

  title={Semi-local strings and monopoles},
  author={G. W. Gibbons and Miguel E. Ortiz and Fernando Ru{\'i}z Ru{\'i}z and Trevor M. Samols},
  journal={Nuclear Physics},
A variation on the abelian Higgs model, with SU(2)global x U(1)local symmetry broken to U(1)global, was recently shown by Vachaspati and Achucarro to admit stable, finite-energy cosmic string solutions, even though the manifold of minima of the potential energy does not have non-contractible loops. This new and unexpected feature motivates a full investigation of the properties of the model. Here we exploit the existence of first-order Bogomol'nyi equations to classify all static finite-energy… Expand
Semi-local cosmic strings and the cosmological constant problem
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Low-energy scattering of solitons in the CP1 model
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Stability of Classical Solutions
The values of the masses of classical solutions of the string type for ..beta..=1 and of the monopole or dyon type for ..beta -->..0 have been obtained analytically. The parameter ..beta.. is theExpand
Existence and stability of semilocal strings.
  • Hindmarsh
  • Physics, Medicine
  • Physical review letters
  • 1992
It has recently been shown that a certain model field theory (which gives the Abelian Higgs model a global SU(2) symmetry by duplicating the scalar sector) possesses static finite-energy vortexExpand
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