# Exotic gravitational wave signatures from simultaneous phase transitions

@article{Croon2018ExoticGW, title={Exotic gravitational wave signatures from simultaneous phase transitions}, author={D. Croon and G. White}, journal={Journal of High Energy Physics}, year={2018}, volume={2018}, pages={1-24} }

A bstractWe demonstrate that the relic gravitational wave background from a multi-step phase transition may deviate from the simple sum of the single spectra, for phase transitions with similar nucleation temperatures TN. We demonstrate that the temperature range ΔT between the volume fractions f(T) = 0.1 and f(T) = 0.9 occupied by the vacuum bubbles can span ∼ 20 GeV. This allows for a situation in which phase transitions overlap, such that the later bubbles may nucleate both in high… Expand

#### Figures and Tables from this paper

#### 17 Citations

Model discrimination in gravitational wave spectra from dark phase transitions

- Physics
- 2018

A bstractIn anticipation of upcoming gravitational wave experiments, we provide a comprehensive overview of the spectra predicted by phase transitions triggered by states from a large variety of dark… Expand

Selecting models of first-order phase transitions using the synergy between collider and gravitational-wave experiments

- Physics
- 2019

We investigate the sensitivity of future space-based interferometers such as LISA and DECIGO to the parameters of new particle physics models which drive a first-order phase transition in the early… Expand

Probing multi-step electroweak phase transition with multi-peaked primordial gravitational waves spectra

- Physics
- 2019

Multi-peaked spectra of the primordial gravitational waves are considered as a phenomenologically relevant source of information about the dynamics of sequential phase transitions in the early… Expand

Review of cosmic phase transitions: their significance and experimental signatures.

- Physics, Medicine
- Reports on progress in physics. Physical Society
- 2019

Different types of phase transitions that can appear in cosmic history, and their applications and experimental signatures in particular in the context of exciting gravitational waves, are reviewed, which could be potentially be constrained by LIGO/VIRGO, Kagra, LISA, and Decigo. Expand

Multistep Strongly First Order Phase Transitions from New Fermions at the TeV Scale

- Physics
- 2019

In spite of the vast literature on the subject of first order Electroweak Phase Transitions (EWPTs), which can provide the necessary conditions for generating the Baryon Asymmetry in the Universe,… Expand

Gravitational waves from a Pati-Salam phase transition

- Physics
- 2018

A bstractWe analyse the gravitational wave and low energy signatures of a Pati-Salam phase transition. For a Pati-Salam scale of MPS ∼ 105 GeV, we find a stochastic power spectrum within reach of the… Expand

Energy budget and the gravitational wave spectra beyond the bag model

- Physics
- 2020

The energy budget of cosmological first-order phase transition is essential for the production of gravitational wave. Most of previous studies of energy budget are based on the bag model with same… Expand

Dynamical Axions and Gravitational Waves.

- Physics
- 2019

In this paper we explore the possibility of observable gravitational waves as a manifestation of the QCD axion dynamics. In particular, we focus on dynamical axion models which solve the strong CP… Expand

Hearing without seeing: gravitational waves from hot and cold hidden sectors

- Physics
- 2019

A bstractWe study the spectrum of gravitational waves produced by a first order phase transition in a hidden sector that is colder than the visible sector. In this scenario, bubbles of the hidden… Expand

QCD baryogenesis

- Physics
- 2019

We explore a simple model which naturally explains the observed baryon asymmetry of the Universe. In this model the strong coupling is promoted to a dynamical quantity, which evolves through the… Expand

#### References

SHOWING 1-10 OF 98 REFERENCES

Supercooling and phase coexistence in cosmological phase transitions

- Physics
- 2008

Cosmological phase transitions are predicted by particle physics models, and have a variety of important cosmological consequences, which depend strongly on the dynamics of the transition. In this… Expand

Gravitational waves from a supercooled electroweak phase transition and their detection with pulsar timing arrays

- Physics
- 2017

We investigate the properties of a stochastic gravitational wave background produced by a first-order electroweak phase transition in the regime of extreme supercooling. We study a scenario whereby… Expand

Gravitational waves from the phase transition of a nonlinearly realized electroweak gauge symmetry

- Physics
- 2017

Within the Standard Model with nonlinearly realized electroweak symmetry, the LHC Higgs boson may reside in a singlet representation of the gauge group. Several new interactions are then allowed,… Expand

Multi-peaked signatures of primordial gravitational waves from multi-step electroweak phase transition

- Physics
- 2018

The first-order electroweak phase transition in the early universe could occur in multiple steps leading to specific multi-peaked signatures in the primordial gravitational wave (GW) spectrum. We… Expand

Gravitational wave production by collisions: more bubbles

- Physics
- 2008

We re-examine the production of gravitational waves by bubble collisions during a first-order phase transition. The spectrum of the gravitational radiation is determined by numerical simulations… Expand

Cosmological phase transitions and their properties in the NMSSM

- Physics
- 2014

A bstractWe study cosmological phase transitions in the Next-to-Minimal Supersymmetric Standard Model (NMSSM) in light of the Higgs discovery. We use an effective field theory approach to calculate… Expand

Gravitational waves from bubble dynamics: Beyond the Envelope

- Physics
- 2017

We study gravitational-wave production from bubble dynamics (bubble collisions and sound waves) during a cosmic first-order phase transition with an analytic approach. We model the system with the… Expand

Gravitational waves from a first-order electroweak phase transition: a brief review

- Physics, Medicine
- Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
- 2018

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

Gravitational waves from the asymmetric-dark-matter generating phase transition

- Physics
- 2017

The baryon asymmetry, together with a dark matter asymmetry, may be produced during a first order phase transition in a generative sector. We study the possibility of a gravitational wave signal in a… Expand

Gravitational waves from vacuum first-order phase transitions: From the envelope to the lattice

- Physics
- 2018

We conduct large scale numerical simulations of gravitational wave production at a first-order vacuum phase transition. We find a power law for the gravitational wave power spectrum at high wave… Expand