Science with the space-based interferometer eLISA. II: gravitational waves from cosmological phase transitions

By C. Caprini, M. Hindmarsh, S. Huber, T. Konstandin, J. Kozaczuk, G. Nardini, J. No, A. Petiteau, P. Schwaller, G. Servant and 1 more. 2015

1,028 citations recorded by the source corpus.

We investigate the potential for the eLISA space-based interferometer to detect the stochastic gravitational wave background produced by strong first-order cosmological phase transitions. We discuss the resulting contributions from bubble collisions, magnetohydrodynamic turbulence, and sound waves to the stochastic background, and estimate the total corresponding signal predicted in gravitational waves. The projected sensitivity of eLISA to cosmological phase transitions is computed in a model-independent way for various detector designs and configurations. By applying these results to several specific models, we demonstrate that eLISA is able to probe many well-motivated scenarios beyond the Standard Model of particle physics predicting strong first-order cosmological phase transitions in the early Universe.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/84d525728345becb18400c4846746d1b69b1d3be

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Citations in the corpus

Theoretical uncertainties for cosmological first-order phase transitions (2020, methodology): “The frequency window of space-based interferometer experiments, such as LISA, may probe the nature of the electroweak phase transition which typically produce a gravitational wave background peaking in the mHz range [5, 6].”
The Gravitational-Wave Physics (2017, methodology): “The fitting formulas of GWs spectrums from numerical simulations are well summarized in [36] and can be straightforwardly applied to the particle physics models, where the strength α and duration β evaluated at nucleation temperature T∗ along with the bubble wall velocity vw are obtained from the mi”
Electroweak phase transition and baryogenesis in composite Higgs models (2018, background): “It turns out that a strong first-order phase transition happening around the electroweak scale generates a spectrum of GWs that lie in the observable frequency bands of the Laser Interferometer Space Antenna (LISA) (see [85, 86] for reviews).”
On the maximal strength of a first-order electroweak phase transition and its gravitational wave signal (2018, background): “2), which can be expressed as [38, 74] α > α∞ = 4.”
Updated predictions for gravitational waves produced in a strongly supercooled phase transition (2020, background): “00]. Following [60], we assume that at ˝ sw all the energy of the uid motion is simply converted into turbulence, which implies a signicant enhancement from this source compared to earlier estimates [101], as the sound 4This behaviour was recently also discussed in an expanding background [99]. Howe”
Improved reconstruction of a stochastic gravitational wave background with LISA (2020, methodology): “[28, 29] for a dedicated analysis for LISA).”