Zobrazeno 1 - 10
of 5 613
pro vyhledávání: '"string network"'
Axion-like particles may form a network of cosmic strings in the Universe today that can rotate the plane of polarization of cosmic microwave background (CMB) photons. Future CMB observations with improved sensitivity might detect this axion-string-i
Externí odkaz:
http://arxiv.org/abs/2411.05002
We perform the lattice simulation to estimate the axion dark matter abundance radiated from the global cosmic strings in the post-inflationary scenario. The independent numerical confirmation on the recently observed logarithmic growth in both the nu
Externí odkaz:
http://arxiv.org/abs/2402.00741
A network of cosmic strings (CS), if present, would continue emitting gravitational waves (GW) as it evolves throughout the history of the Universe. This results in a characteristic broad spectrum making it a perfect source to infer the expansion his
Externí odkaz:
http://arxiv.org/abs/2304.02636
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-53 (2024)
Abstract We perform lattice simulations to estimate the axion dark matter abundance radiated from the global cosmic strings in the post-inflationary scenario. The independent numerical confirmation on the recently observed logarithmic growth in both
Externí odkaz:
https://doaj.org/article/65fb417335e84d499b6e16aec81262b3
Akademický článek
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The canonical velocity-dependent one-scale (VOS) model for cosmic string evolution contains a number of free parameters which cannot be obtained ab initio. Therefore it must be calibrated using high resolution numerical simulations. We exploit our st
Externí odkaz:
http://arxiv.org/abs/2110.15427
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 9, Pp 1-20 (2023)
Abstract A network of cosmic strings (CS), if present, would continue emitting gravitational waves (GW) as it evolves throughout the history of the Universe. This results in a characteristic broad spectrum making it a perfect source to infer the expa
Externí odkaz:
https://doaj.org/article/abc9908a85ff45c8ab89478980d53d59
Quantitative studies of the evolution and cosmological consequences of networks of cosmic strings (or other topological defects) require a combination of numerical simulations and analytic modeling with the velocity-dependent one-scale (VOS) model. I
Externí odkaz:
http://arxiv.org/abs/2007.12008
Akademický článek
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Publikováno v:
Phys. Rev. D 95, 043531 (2017)
Pulsar timing arrays are one of the powerful tools to test the existence of cosmic strings through searching for the gravitational wave background. The amplitude of the background connects to information on cosmic strings such as the tension and stri
Externí odkaz:
http://arxiv.org/abs/1604.00332