Irreducible background of gravitational waves from a cosmic defect network: Update and comparison of numerical techniques

@article{Figueroa2020IrreducibleBO,
  title={Irreducible background of gravitational waves from a cosmic defect network: Update and comparison of numerical techniques},
  author={D. Figueroa and M. Hindmarsh and J. Lizarraga and J. Urrestilla},
  journal={Physical Review D},
  year={2020},
  volume={102}
}
Cosmological phase transitions in the early Universe may produce relics in the form of a network of cosmic defects. Independently of the order of a phase transition, topology of the defects, and their global or gauge nature, the defects are expected to emit gravitational waves (GWs) as the network energy-momentum tensor adapts itself to maintaining {scaling}. We show that the evolution of any defect network (and for that matter any scaling source) emits a GW background with spectrum $\Omega_… Expand

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References

SHOWING 1-10 OF 279 REFERENCES
? ? ? ? ? ? ? ? ? ? ? ? ? 30 ? ? ? ? ? ? ? ? ? ? ? ? ? ?
The objective of the current work is to present the results of several numerical simulations of pulsatile blood flow in healthy and diseased arteries and compare with clinical expectations. DifferentExpand
JCAP 0910
  • 005
  • 2009
Phys
  • Rev. Lett. 66, 3093
  • 1991
Phys
  • Rev. Lett. 110, 101302
  • 2013
Aspects of Reheating
  • PhD thesis, Universidad Autónoma de Madrid
  • 2010
d.
TLDR
The novel JEV RT-NASBA assay could be used as an efficient molecular biology tool to diagnose JEV, which would facilitate the surveillance of reproductive failure disease in swine and would be beneficial for public health security. Expand
Constraining Axion Inflation with Gravitational Waves across 29 Decades in Frequency.
We demonstrate that gravitational waves generated by efficient gauge preheating after axion inflation generically contribute significantly to the effective number of relativistic degrees of freedomExpand
Constraining axion inflation with gravitational waves from preheating
We study gravitational wave production from gauge preheating in a variety of inflationary models, detailing its dependence on both the energy scale and the shape of the potential. We show thatExpand
Decay of cosmic global string loops
We numerically study the decay of cosmic global string loops due to radiation of Goldstone bosons and massive scalar ($\chi$) particles. The length of loops we study range from 200-1000 times theExpand
Early-Universe Simulations of the Cosmological Axion.
TLDR
This work describes the spectrum of primordial perturbations that are generated and comment on implications for efforts to detect axion DM, and measures the DM density at different simulated masses. Expand
...
1
2
3
4
5
...