• Corpus ID: 54612288

Lumpy cosmic strings

@article{Lake2015LumpyCS,
  title={Lumpy cosmic strings},
  author={Matthew J. Lake and Tiberiu Harko},
  journal={arXiv: High Energy Physics - Theory},
  year={2015}
}
We outline a model of abelian-Higgs strings with variable scalar and vector core radii. In general, the functions determining the time and position-dependent core widths may be expressed as arbitrary left or right movers, of which the usual constant values are a particular solution. In this case the string may carry momentum, even if the embedding of its central axis remains fixed, and the resulting objects resemble “necklaces”. Some possible astrophysical applications of lumpy strings… 

References

SHOWING 1-10 OF 74 REFERENCES
String necklaces and primordial black holes from type IIB strings
We consider a model of static cosmic string loops in type IIB string theory, where the strings wrap cycles within the internal space. The strings are not topologically stabilised, however the
Cosmic strings with twisted magnetic flux lines and wound-strings in extra dimensions
We consider a generalization of the Nielsen-Olesen ansatz, in the abelian-Higgs model, which describes strings with twisted magnetic flux lines in the vortex core. The solution does not possess
Dynamics of cosmic strings and springs; a covariant formulation
A general family of charge-current carrying string models is investigated. In the special case of circular configurations in arbitrary axially symmetric gravitational and electromagnetic backgrounds
Radiation of Goldstone bosons from cosmic strings.
It is shown that the interaction of global strings with Goldstone bosons can be described by a model of strings coupled to an antisymmetric tensor field with a particular choice of the coupling
ACCRETION OF HOT DARK MATTER ONTO SLOWLY MOVING COSMIC STRINGS
Cosmic strings with small-scale structure have a coarse-grained mass per unit length μ which is larger than the string tension. This leads to an effective Newtonian gravitational line source and to a
Detailed stability analysis of electroweak strings
Cosmic necklaces from string theory
We present the properties of a cosmic superstring network in the scenario of flux compactification. An infinite family of strings, the (p,q) strings, are allowed to exist. The flux compactification
CMB power spectrum contribution from cosmic strings using field-evolution simulations of the Abelian Higgs model
We present the first field-theoretic calculations of the contribution made by cosmic strings to the temperature power spectrum of the cosmic microwave background (CMB). Unlike previous work, in which
A generalisation of the Nielsen-Olesen vortex: non-cylindrical strings in a modified abelian-higgs model
We modify the standard Abelian-Higgs model by introducing spatially-dependent couplings for the scalar and vector fields. We investigate static, non-cylindrically symmetric solutions of the resulting
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