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gr-qc2026
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,…
gr-qc2023★ 1 cited
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…