264 citations · 641 across the 20 of their papers we have counts for
21 papers
Axionic domain walls at Pulsar Timing Arrays: QCD bias and particle friction
Simone Blasi, Alberto Mariotti, Aäron Rase +1
The recent results from the Pulsar Timing Array (PTA) collaborations show the first evidence for the detection of a stochastic background of gravitational waves at the nHz frequenc…
Gravitational waves from defect-driven phase transitions: domain walls
Simone Blasi, Ryusuke Jinno, Thomas Konstandin +2
We discuss the gravitational wave spectrum produced by first-order phase transitions seeded by domain wall networks. This setup is important for many two-step phase transitions as…
Holographic Composite Higgs Model Building: Soft Breaking, Maximal Symmetry, and the Higgs Mass
Simone Blasi, Julian Bollig, Florian Goertz
We study the emergence and phenomenological consequences of recently proposed new structures, namely soft breaking of the Higgs shift symmetry and `maximal symmetry' of the composi…
Friction on ALP domain walls and gravitational waves
Simone Blasi, Alberto Mariotti, Aäron Rase +2
We study the early Universe evolution of axion-like particle (ALP) domain walls taking into account the effect of friction from particles in the surrounding plasma, including the c…
Gravitational Waves from Current-Carrying Cosmic Strings
Pierre Auclair, Simone Blasi, Vedran Brdar +1
Cosmic strings are predicted by many Standard Model extensions involving the cosmological breaking of a symmetry with nontrivial first homotopy group and represent a potential sour…
Domain walls seeding the electroweak phase transition
Simone Blasi, Alberto Mariotti
Topological defects can act as local impurities that seed cosmological phase transitions. In this paper we study the case of domain walls, and how they can affect the electroweak p…