# Semi-local strings and monopoles

@article{Gibbons1992SemilocalSA, 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}, year={1992}, volume={385}, pages={127-144} }

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

#### 64 Citations

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We study BPS non-abelian semilocal vortices in U(Nc) gauge theory with Nf
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Abstract We study the stability properties of the twisted vortex solutions in the semilocal Abelian Higgs model with a global SU ( 2 ) invariance. This model can be viewed as the Weinberg–Salam… Expand

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We embed the semilocal Chern–Simons–Higgs theory into an N=2 supersymmetric system. We construct the corresponding conserved supercharges and derive the Bogomol'nyi equations of the model from… Expand

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Non-Abelian strings for an Einstein-Yang-Mills-Higgs theory are explicitly constructed. We consider N{sub f} Higgs fields in the fundamental representation of the U(1)xSU(N{sub c}) gauge group in… Expand

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