Year: 2026
Type: article
Abstract: A bstract A line of first-order phase transitions is conjectured in the phase diagram of Quantum Chromodynamics at non-zero baryon density. If this is the case, numerical simulations of neutron star mergers suggest that various regions of the stars may cross this line multiple times. This results in the nucleation of bubbles of the preferred phase, which subsequently expand and collide. The resulting gravitational wave spectrum is highly sensitive to the velocity of the bubble walls. We use holography to perform the first microscopic simulation of bubble dynamics in a theory that qualitatively mirrors the expected phase diagram of Quantum Chromodynamics. We determine the wall velocity in the metastable regions and we compare it to theoretical estimates. We discuss implications for gravitational wave production.
Source: Journal of High Energy Physics
Authors: Yago Bea, Mauro Giliberti, David Mateos, Mikel Sanchez-Garitaonandia, Alexandre Serantes, Miguel Zilhão
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Awards: G1175115578, G1568919837, G182503756, G2064873908, G210041235, G2262748287, G226371151, Centro de Investigação e Desenvolvimento em Matemática e Aplicações, G2601397997, G3005324705, G3009490678, G300979063, G3069120617, G308504231, G3089118260, G3115185216, G34346518, G3461949579, Testando a hipótese de Kerr com ondas e lentes gravitacionais, G3480869486, G3681454997, G3780874795, G3870194508, G3978510197, G4042783231, G425668148, G4479787952, G5080475149, G5138615903, G5195188938, G5356239126, G5385376234, G651436195, G6588859430, G69051668, G6997658380, Ondas gravitacionais, buracos negros, e física fundamental, G7084143925, G7123698595, Centro de Investigação e Desenvolvimento em Matemática e Aplicações, G7425137858, G7525315620, G8453797156, G8684520763
OpenAlex ID: W7148546227