Abstract
We present an extension of the velocity-dependent one-scale model suitable for describing the evolution of networks of local and global monopoles, including the cases where these are attached to various numbers of strings. We discuss the key dynamical features that need to be accounted for, in particular the fact that the driving force is due to the other monopoles (rather than being due to local curvature as in the case of extended objects) and new forms of energy loss terms due to monopole-antimonopole capture and annihilation. We find that in many cases the networks evolve towards the standard scaling solution but other scaling laws can also exist, depending on the number of strings involved, the universe’s expansion rate and the network’s energy loss mechanisms. We also study the particularly interesting case of semilocal string networks.
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Martins, C.J.A.P. (2016). The Rest of the Zoo. In: Defect Evolution in Cosmology and Condensed Matter. SpringerBriefs in Physics. Springer, Cham. https://doi.org/10.1007/978-3-319-44553-3_4
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DOI: https://doi.org/10.1007/978-3-319-44553-3_4
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