Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach

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dc.creatorCaprini, Chiara
dc.creatorDurrer, Ruth
dc.creatorServant, Geraldine
dc.date2007-11-16
dc.date2009-01-13
dc.date.accessioned2026-07-07T12:28:10Z
dc.date.available2026-07-07T12:28:10Z
dc.descriptionGravitational wave production from bubble collisions was calculated in the early nineties using numerical simulations. In this paper, we present an alternative analytic estimate, relying on a different treatment of stochasticity. In our approach, we provide a model for the bubble velocity power spectrum, suitable for both detonations and deflagrations. From this, we derive the anisotropic stress and analytically solve the gravitational wave equation. We provide analytical formulae for the peak frequency and the shape of the spectrum which we compare with numerical estimates. In contrast to the previous analysis, we do not work in the envelope approximation. This paper focuses on a particular source of gravitational waves from phase transitions. In a companion article, we will add together the different sources of gravitational wave signals from phase transitions: bubble collisions, turbulence and magnetic fields and discuss the prospects for probing the electroweak phase transition at LISA.
dc.description48 pages, 14 figures. v2 (PRD version): calculation refined; plots redone starting from Fig. 4. Factor 2 in GW energy spectrum corrected. Main conclusions unchanged. v3: Note added at the end of paper to comment on the new results of 0901.1661
dc.identifierhttps://arxiv.org/abs/0711.2593
dc.identifierhttp://arxiv.org/abs/0711.2593
dc.identifierPhys.Rev.D77:124015,2008
dc.identifierdoi:10.1103/PhysRevD.77.124015
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215453
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
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