A Review of Gravitational Waves from Cosmic Domain Walls
By K. Saikawa. 2017
197 citations recorded by the source corpus.
In this contribution, we discuss the cosmological scenario where unstable domain walls are formed in the early universe and their late-time annihilation produces a significant amount of gravitational waves. After describing cosmological constraints on long-lived domain walls, we estimate the typical amplitude and frequency of gravitational waves observed today. We also review possible extensions of the standard model of particle physics that predict the formation of unstable domain walls and can be probed by observation of relic gravitational waves. It is shown that recent results of pulser timing arrays and direct detection experiments partially exclude the relevant parameter space, and that a much wider parameter space can be covered by the next generation of gravitational wave observatories.
Subfields: Astronomy and Astrophysics, Instrumentation
View Paper: https://www.semanticscholar.org/paper/7685a41e3c8bb845d34a4e03bd09321878a1e171
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In Astronomy and Astrophysics
- Igor G. Irastorza
- P. Simakachorn
- J. Redondo
- Y. Gouttenoire
- G. Servant
- A. Ringwald
- C. Caprini
- W. Buchmuller
In Instrumentation
Citations in the corpus
- Matter-wave Atomic Gradiometer Interferometric Sensor (MAGIS-100) (2021, unknown): “Furthermore, thermal phase transitions in the early Universe at scales above the weak scale [79–87], or quantum tunneling transitions in cold hidden sectors [88], or networks of cosmic strings [89], or collapsing domain walls [90], or axion dynamics in the early Universe [91, 92], may produce detect”
- Beyond the Standard Models with cosmic strings (2019, background): “Hence, the energy density fraction in GW before wall annihilation [294] increases with time Ω GW ∼ ( Gσ t̃ )2 .”
- New experimental approaches in the search for axion-like particles (2018, background): “The annihilation of the DW network solves a cosmological disaster and provides another source of potential dark matter [209], dark radiation ALPs and gravitational waves [205,210,211].”