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| Main Authors: | , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Acceso en liña: | https://arxiv.org/abs/2310.13060 |
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| _version_ | 1866914875669741568 |
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| author | Cui, Yanou Saha, Pankaj Sfakianakis, Evangelos I. |
| author_facet | Cui, Yanou Saha, Pankaj Sfakianakis, Evangelos I. |
| contents | We investigate a generic source of stochastic gravitational wave background due to the parametric resonance of oscillating scalar fields in the early Universe. By systematically analyzing benchmark models through lattice simulations and considering a wide range of parameters, we demonstrate that such a scenario can lead to detectable signals in gravitational wave detectors over a broad frequency range and potentially address the recent findings by pulsar timing array experiments. Furthermore, these models naturally yield ultralight dark matter candidates or dark radiation detectable by cosmic microwave background observatories. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_13060 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Gravitational Wave Symphony from Oscillating Spectator Scalar Fields Cui, Yanou Saha, Pankaj Sfakianakis, Evangelos I. High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology We investigate a generic source of stochastic gravitational wave background due to the parametric resonance of oscillating scalar fields in the early Universe. By systematically analyzing benchmark models through lattice simulations and considering a wide range of parameters, we demonstrate that such a scenario can lead to detectable signals in gravitational wave detectors over a broad frequency range and potentially address the recent findings by pulsar timing array experiments. Furthermore, these models naturally yield ultralight dark matter candidates or dark radiation detectable by cosmic microwave background observatories. |
| title | Gravitational Wave Symphony from Oscillating Spectator Scalar Fields |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2310.13060 |