Phase transitions in an expanding universe: stochastic gravitational waves in standard and non-standard histories

@article{Guo2021PhaseTI,
  title={Phase transitions in an expanding universe: stochastic gravitational waves in standard and non-standard histories},
  author={Huai-ke Guo and Kuver Sinha and Daniel Vagie and Graham White},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2021},
  volume={2021},
  pages={001 - 001}
}
We undertake a careful analysis of stochastic gravitational wave production from cosmological phase transitions in an expanding universe, studying both a standard radiation as well as a matter dominated history. We analyze in detail the dynamics of the phase transition, including the false vacuum fraction, bubble lifetime distribution, bubble number density, mean bubble separation, etc., for an expanding universe. We also study the full set of differential equations governing the evolution of… Expand
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References

SHOWING 1-10 OF 130 REFERENCES
Sound Shell Model for Acoustic Gravitational Wave Production at a First-Order Phase Transition in the Early Universe.
TLDR
The detailed dependence of the power spectrum on the wall speed and the other parameters of the phase transition raises the possibility of their constraint or measurement at a future space-based gravitational wave observatory such as LISA. Expand
Shape of the acoustic gravitational wave power spectrum from a first order phase transition
We present results from large-scale numerical simulations of a first order thermal phase transition in the early Universe, in order to explore the shape of the acoustic gravitational wave and theExpand
Numerical simulations of acoustically generated gravitational waves at a first order phase transition
We present details of numerical simulations of the gravitational radiation produced by a first order thermal phase transition in the early universe. We confirm that the dominant source ofExpand
On the maximal strength of a first-order electroweak phase transition and its gravitational wave signal
What is the maximum possible strength of a first-order electroweak phase transition and the resulting gravitational wave (GW) signal? While naively one might expect that supercooling could increaseExpand
Gravitational waves from a first-order electroweak phase transition: a brief review
  • D. Weir
  • Physics, Medicine
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2018
TLDR
The production of gravitational waves by an electroweak first-order phase transition is reviewed and a good candidate for detection at next-generation gravitational wave detectors, such as LISA, is reviewed. Expand
The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
It is commonly assumed that the energy density of the Universe was dominated by radiation between reheating after inflation and the onset of matter domination 54,000 years later. While the abundanceExpand
  • J. Cosmol. Astropart. Phys.
  • 2020
Gravitational Imprints of Flavor Hierarchies.
TLDR
It is pointed out that the observation of a multipeaked stochastic gravitational wave signal from a series of cosmological phase transitions could well be a unique probe of the mechanism behind flavor hierarchies. Expand
Gravitational wave signals from multiple hidden sectors
We explore the possibility of detecting gravitational waves generated by first order phase transitions in multiple dark sectors. Nnaturalness is taken as a sample model that features multipleExpand
...
1
2
3
4
5
...