5 papers
Metastable strings at PTAs: classical stability analysis
Simone Blasi, Maxime Grandjean, Alberto Mariotti
Metastable strings can arise from a two-step symmetry breaking chain of the type .They can decay through quantum tunneling by nucleating a monopole-antimonopo…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Gravitational waves from cosmic strings in Froggatt-Nielsen flavour models
Simone Blasi, Lorenzo Calibbi, Alberto Mariotti +1
Gravitational waves (GW) are a powerful probe of the earliest moments in the Universe, enabling us to test fundamental interactions at energy scales beyond the reach of laboratory…
Monodromic transparency of axion domain walls
Simone Blasi
We revisit the study of light interacting with QCD axion domain walls from the perspective of the non-linear axion coupling to photons, , which encodes the effects…
QCD Axion Strings or Seeds?
Simone Blasi, Alberto Mariotti
We study the impact of QCD axion strings in the cosmological history of electroweak (EW) symmetry breaking, focussing on the minimal KSVZ axion model. We consider the case of the p…