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 Figures and Tables from this paper Gravitational Waves from Global Cosmic Strings and Cosmic Archaeology • Chia-Feng Chang • Physics • 2021 Global cosmic strings are predicted in many motivated extensions to the Standard Model of particle physics, with close connections to axion dark matter physics. Recent studies suggest that, althoughExpand CMB birefringence from ultralight-axion string networks • Physics • 2021 The polarization of Cosmic Microwave Background (CMB) photons is rotated as they pass through (ultralight-) axion string loops. Studying this birefringence can reveal valuable information about theExpand Dark Matter from Axion Strings with Adaptive Mesh Refinement Malte Buschmann, ∗ Joshua W. Foster, 3, 4, † Anson Hook, Adam Peterson, Don E. Willcox, Weiqun Zhang, and Benjamin R. Safdi 4, ‡ Department of Physics, Princeton University, Princeton, NJ 08544, USAExpand Interferences in the stochastic gravitational wave background • Physics • 2021 Although the expansion of the Universe explicitly breaks the time-translation symmetry, cosmological predictions for the stochastic gravitational wave background (SGWB) are usually derived under theExpand Observing invisible axions with gravitational waves • Physics • 2021 If the Peccei-Quinn symmetry associated to an axion has ever been restored after inflation, axion strings inevitably produce a contribution to the stochastic gravitational wave background. CombiningExpand Bridging the gap: spectral distortions meet gravitational waves • Physics • 2020 Gravitational waves (GWs) have the potential to probe the entirety of cosmological history due to their nearly perfect decoupling from the thermal bath and any intervening matter after emission. InExpand Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies The first direct measurement of gravitational waves by the LIGO and Virgo collaborations has opened up new avenues to explore our Universe. This white paper outlines the challenges and gains expectedExpand Impact of a midband gravitational wave experiment on detectability of cosmological stochastic gravitational wave backgrounds • Physics • 2020 We make forecasts for the impact a future "midband" space-based gravitational wave experiment, most sensitive to$10^{-2}- 10 $Hz, could have on potential detections of cosmological stochasticExpand Snowmass2021-Letter of Interest The Stochastic Gravitational Wave Background as a Probe of New Physics from the Early Universe • Tristan L. Smith • 2020 (maximum 200 words) Direct detection of a stochastic gravitational wave background (SGWB) of primordial origin would be a profound discovery, providing deep insight into new physics. A variety ofExpand References SHOWING 1-10 OF 279 REFERENCES ? ? ? ? ? ? ? ? ? ? ? ? ? 30 ? ? ? ? ? ? ? ? ? ? ? ? ? ? The objective of the current work is to present the results of several numerical simulations of pulsatile blood flow in healthy and diseased arteries and compare with clinical expectations. DifferentExpand JCAP 0910 • 005 • 2009 Phys • Rev. Lett. 66, 3093 • 1991 Phys • Rev. Lett. 110, 101302 • 2013 Aspects of Reheating • PhD thesis, Universidad Autónoma de Madrid • 2010 d. The novel JEV RT-NASBA assay could be used as an efficient molecular biology tool to diagnose JEV, which would facilitate the surveillance of reproductive failure disease in swine and would be beneficial for public health security. Expand Constraining Axion Inflation with Gravitational Waves across 29 Decades in Frequency. • Physics, Medicine • Physical review letters • 2020 We demonstrate that gravitational waves generated by efficient gauge preheating after axion inflation generically contribute significantly to the effective number of relativistic degrees of freedomExpand Constraining axion inflation with gravitational waves from preheating • Physics • 2020 We study gravitational wave production from gauge preheating in a variety of inflationary models, detailing its dependence on both the energy scale and the shape of the potential. We show thatExpand Decay of cosmic global string loops • Physics • 2020 We numerically study the decay of cosmic global string loops due to radiation of Goldstone bosons and massive scalar ($\chi\$) particles. The length of loops we study range from 200-1000 times theExpand
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