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

@article{Caprini:2007xq, abstract = {Gravitational 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.}, archivePrefix = {arXiv}, author = {Caprini, Chiara and Durrer, Ruth and Servant, Geraldine}, citeulike-article-id = {3888238}, citeulike-linkout-0 = {http://arxiv.org/abs/0711.2593}, citeulike-linkout-1 = {http://arxiv.org/pdf/0711.2593}, citeulike-linkout-2 = {http://arxiv.org/abs/0711.2593}, day = {13}, eprint = {0711.2593}, eprint = {0711.2593}, keywords = {bubble-collisions, gravitational-waves, phase-transition}, month = {Jan}, posted-at = {2009-01-15 11:09:03}, priority = {2}, title = {Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach}, url = {http://arxiv.org/abs/0711.2593}, year = {2009} }

TY - JOUR ID - Caprini:2007xq L3 - citeulike-article-id:3888238 N2 - Gravitational 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. TI - Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach KW - bubble-collisions KW - gravitational-waves KW - phase-transition AU - Caprini, Chiara AU - Durrer, Ruth AU - Servant, Geraldine PY - 2009/Jan/13/ UR - http://arxiv.org/abs/0711.2593 ER -