97 citations · 148 across the 10 of their papers we have counts for
11 papers
Biased Domain Wall Networks and their Gravitational Waves
Davide Barbini, Alessio Notari, Oriol Pujolàs +2
Cosmic Domain Wall networks are among the most interesting sources of a stochastic Gravitational Wave (GW) background from the early Universe. We present a thorough analysis of the…
Cuspidal Singularities in Collapsing Domain Walls
Jose J. Blanco-Pillado, Matthew Elley, Francesc Ferrer +4
Domain wall networks have attracted renewed interest, particularly in relation to the dynamics of network collapse. Accurately describing this process is challenging and typically…
Search for Peak Structures in the Stochastic Gravitational-Wave Background in LIGO-Virgo-KAGRA O1-O4a Datasets
Catalina-Ana Miritescu, Mario Martinez, Oriol Pujolas
We present a dedicated search for gravitational-wave backgrounds with nontrivial peak structures using data from the first three and the initial part of the fourth observing runs o…
From Cusps to Swallowtails: Domain Wall singularities in 2+1 dimensions
Jose J. Blanco-Pillado, Daniel Jiménez-Aguilar, Oriol Pujolàs
The effective Nambu-Goto description of -dimensional domain walls predicts singular behavior of its worldsheet resulting in swallowtail bifurcations. This phenomenon is inti…
Soft Oscillons
Fabio van Dissel, Oriol Pujolàs
We present a novel type of soliton dubbed soft oscillons. In contrast with conventional oscillons the soft counterparts come in a continuum of unboundedly large sizes. They are pec…
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…
Cosmological scaling of precursor domain walls
Mainak Mukhopadhyay, Oriol Pujolas, George Zahariade
Domain wall (DW) networks have a large impact on cosmology and present interesting dynamics that can be controlled by various scaling regimes. In the first stage after spontaneous…
Primordial gravitational wave backgrounds from phase transitions with next generation ground based detectors
Chiara Caprini, Oriol Pujolàs, Hippolyte Quelquejay-Leclere +2
Third generation ground-based gravitational wave (GW) detectors, such as Einstein Telescope and Cosmic Explorer, will operate in the Hz frequency band, with a b…
Constraints on primordial black holes from LIGO-Virgo-KAGRA O3 events
M. Andrés-Carcasona, A. J. Iovino, V. Vaskonen +4
Primordial black holes (PBH) can efficiently form black hole binaries in the early universe. We update the resulting constraints on PBH abundance using data from the third observat…
Collapsing Domain Wall Networks: Impact on Pulsar Timing Arrays and Primordial Black Holes
Ricardo Z. Ferreira, Alessio Notari, Oriol Pujolàs +1
Unstable domain wall (DW) networks in the early universe are cosmologically viable and can emit a large amount of gravitational waves (GW) before annihilating. As such, they provid…
Axionic defects in the CMB: birefringence and gravitational waves
Ricardo Z. Ferreira, Silvia Gasparotto, Takashi Hiramatsu +2
The evidence for a non-vanishing isotropic cosmic birefringence in recent analyses of the CMB data provides a tantalizing hint for new physics. Domain wall (DW) networks have recen…