Gravitational waves from deflagration bubbles in first-order phase transitions

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dc.creatorMegevand, Ariel
dc.date2008-04-02
dc.date2008-09-08
dc.date.accessioned2026-07-07T11:49:33Z
dc.date.available2026-07-07T11:49:33Z
dc.descriptionThe walls of bubbles in a first-order phase transition can propagate either as detonations, with a velocity larger than the speed of sound, or deflagrations, which are subsonic. We calculate the gravitational radiation that is produced by turbulence during a phase transition which develops via deflagration bubbles. We take into account the fact that a deflagration wall is preceded by a shock front which distributes the latent heat throughout space and influences other bubbles. We show that turbulence can induce peak values of $Ω_{GW}$ as high as $\sim 10^{-9}$. We discuss the possibility of detecting at LISA gravitational waves produced in the electroweak phase transition with wall velocities $v_w\lesssim 10^{-1}$, which favor electroweak baryogenesis.
dc.description13 pages, 1 figure; calculations of section IV repeated using recent results for the GW spectrum from turbulence, comments added in all sections, references added, conclusions unchanged
dc.identifierhttps://arxiv.org/abs/0804.0391
dc.identifierhttp://arxiv.org/abs/0804.0391
dc.identifierPhys.Rev.D78:084003,2008
dc.identifierdoi:10.1103/PhysRevD.78.084003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203276
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGravitational waves from deflagration bubbles in first-order phase transitions
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