# Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics

@inproceedings{Caldwell2022DetectionOE, title={Detection of Early-Universe Gravitational Wave Signatures and Fundamental Physics}, author={Robert R. Caldwell and Y Cui and Huai-Ke Guo and Vuk Mandic and Alberto Mariotti and J. M. No and Michael J. Ramsey-Musolf and Mairi Sakellariadou and Kuver Sinha and Lian-tao Wang and Graham White and Yue Zhao and Haipeng An and Chiara Caprini and S{\'e}bastien Clesse and James M. Cline and Giulia Cusin and Ryusuke Jinno and B. Laurent and Noam Levi and Kunfeng Lyu and Miguel {\'A}ngel Mart{\'i}nez and Andrew L. Miller and Diego Redigolo and Claudia Scarlata and Alexander Sevrin and Barmak Shams Es Haghi and Jing Shu and Xavier Siemens and Dani{\`e}le Steer and Raman Sundrum and Carlos Tamarit and David J. Weir and Bartosz Fornal and Ke-Pan Xie and Feng-Wei Yang and Siyi Zhou}, year={2022} }

Detection of a gravitational-wave signal of non-astrophysical origin would be a landmark discovery, potentially providing a signiﬁcant clue to some of our most basic, big-picture scientiﬁc questions about the Universe. In this white paper, we survey the leading early-Universe mechanisms that may produce a detectable signal – including inﬂation, phase transitions, topological defects, as well as primordial black holes – and highlight the connections to fundamental physics. We review the…

## 21 Citations

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## References

SHOWING 1-10 OF 533 REFERENCES

### 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…

### Gravitational wave signatures of lepton universality violation

- Physics
- 2021

We analyze the prospects for using gravitational waves produced in early universe phase transitions as a complementary probe of the flavor anomalies in $B$ meson decays. We focus on the left-right…

### Baryon and lepton number violation from gravitational waves

- PhysicsPhysical Review D
- 2020

We describe a unique gravitational wave signature for a class of models with a vast hierarchy between the symmetry breaking scales. The unusual shape of the signal is a result of the overlapping…

### Probing the pre-BBN universe with gravitational waves from cosmic strings

- PhysicsJournal of High Energy Physics
- 2019

A bstractMany motivated extensions of the Standard Model predict the existence of cosmic strings. Gravitational waves originating from the dynamics of the resulting cosmic string network have the…

### A second Higgs doublet in the early universe: baryogenesis and gravitational waves

- Physics
- 2016

We show that simple Two Higgs Doublet models might still provide a viable explanation for the matter-antimatter asymmetry of the Universe via electroweak baryogenesis, even after taking into account…

### Imprint of a scalar era on the primordial spectrum of gravitational waves

- PhysicsPhysical Review Research
- 2019

Upcoming searches for the stochastic background of inflationary gravitational waves (GWs) offer the exciting possibility to probe the evolution of our Universe prior to Big Bang nucleosynthesis. In…

### Gravitational Waves from a Dark Phase Transition.

- PhysicsPhysical review letters
- 2015

The gravitational wave signal provides a unique test of the gravitational interactions of a dark sector, and the complementarity with conventional searches for new dark sectors is discussed, as well as symmetric and asymmetric composite dark matter scenarios.

### Cosmological backgrounds of gravitational waves and eLISA/NGO: phase transitions, cosmic strings and other sources

- Physics
- 2012

We review several cosmological backgrounds of gravitational waves accessible to direct-detection experiments, with a special emphasis on those backgrounds due to first-order phase transitions and…

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

- PhysicsProceedings of European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2019)
- 2020

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…

### Primordial Anisotropies in the Gravitational Wave Background from Cosmological Phase Transitions.

- PhysicsPhysical review letters
- 2018

Correlations within the gravitational wave anisotropies and their cross-correlations with the CMB can provide new insights into the mechanism underlying primordial fluctuations, such as multifield inflation, as well as reveal the existence of nonstandard "hidden sectors" of particle physics in earlier eras.