3 papers
astro-ph.CO2019
Cosmological Evolution of Semilocal String Networks
A. Achucarro, A. Avgoustidis, A. Lopez-Eiguren +2
Semilocal strings -- a particular limit of electroweak strings -- are an interesting example of a stable non-topological defect whose properties resemble those of their topological…
astro-ph.CO2019
The scaling density of axion strings
Mark Hindmarsh, Joanes Lizarraga, Asier Lopez-Eiguren +1
In the QCD axion dark matter scenario with post-inflationary Peccei-Quinn symmetry breaking, the number density of axions, and hence the dark matter density, depends on the length…
astro-ph.CO2018
Scaling in necklaces of monopoles and semipoles
Mark Hindmarsh, Anna Kormu, Asier Lopez-Eiguren +1
Models of symmetry breaking in the early universe can produce networks of cosmic strings threading 't Hooft-Polyakov monopoles. In certain cases there is a larger global symmetry g…