359 citations · 929 across the 20 of their papers we have counts for
9 papers · 1 filter
Fluid perturbations from expanding bubbles in first-order phase transitions
Chiara Caprini, Antonino S. Midiri, Simona Procacci +1
We study the power spectrum of the velocity field induced during a first-order phase transition occurring in the radiation-dominated era. We focus on the phase of bubble expansion,…
Gravitational wave spectra for cosmological phase transitions with non-linear decay of the fluid motion
Isak Stomberg, Alberto Roper Pol
We summarize the theoretical framework of gravitational wave (GW) production by bulk fluid motion induced by expanding broken-phase bubbles during a first-order phase transition. U…
Relativistic magnetohydrodynamics in the early Universe
Alberto Roper Pol, Antonino Salvino Midiri
We review the conservation laws of magnetohydrodynamics (MHD) in an expanding homogeneous and isotropic Universe that can be applied to the study of early Universe physics during t…
Gravitational waves from first-order phase transitions: from weak to strong
Chiara Caprini, Ryusuke Jinno, Thomas Konstandin +3
We study the generation of gravitational waves (GWs) during a cosmological first-order phase transition (PT) using the recently introduced Higgsless approach to numerically simulat…
The Lunar Gravitational-wave Antenna: Mission Studies and Science Case
Parameswaran Ajith, Pau Amaro Seoane, Manuel Arca Sedda +83
The Lunar Gravitational-wave Antenna (LGWA) is a proposed array of next-generation inertial sensors to monitor the response of the Moon to gravitational waves (GWs). Given the size…
Characterization of the gravitational wave spectrum from sound waves within the sound shell model
Alberto Roper Pol, Simona Procacci, Chiara Caprini
We compute the gravitational wave (GW) spectrum sourced by sound waves produced during a first-order phase transition in the radiation-dominated epoch. The correlator of the veloci…
Gravitational waves from MHD turbulence at the QCD phase transition as a source for Pulsar Timing Arrays
Alberto Roper Pol
We propose that the recent observations reported by the different Pulsar Timing Array (PTA) collaborations (i.e.~IPTA, EPTA, PPTA, and NANOGrav) of a common process over several pu…
Gravitational radiation from MHD turbulence in the early universe
Alberto Roper Pol
I briefly discuss recent results of numerical simulations addressing the generation of a cosmological gravitational wave background produced by turbulence sources in the early univ…
The scalar, vector, and tensor modes in gravitational wave turbulence simulations
Axel Brandenburg, Grigol Gogoberidze, Tina Kahniashvili +3
We study the gravitational wave (GW) signal sourced by primordial turbulence that is assumed to be present at cosmological phase transitions like the electroweak and quantum chromo…