2007/11/30 by Chiara Caprini, Ruth Durrer, Geraldine Servant +1 · 8 citations
Physics and Astronomy · #Adiabatic process #Bubble #Classical mechanics #Computational physics #Cosmology and Gravitation Theories #Envelope (radar) #Gravitation #Gravitational wave #Mechanics #Particle physics theoretical and experimental studies #Phase transition #Physics #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum mechanics #Statistical physics #astro-ph #gr-qc #hep-ph
paper · pdf · doi:10.1103/physrevd.77.124015
published as Phys.Rev.D77:124015,2008 · 48 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
openalex publication_date 2008/06/11 · arxiv created 2009/01/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Gravitational wave production from bubble collisions was calculated in the early 1990s 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 formulas 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.