Cosmological Consequences of Domain Walls Biased by Quantum Gravity
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914120021835776 |
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| author | Gouttenoire, Yann King, Stephen F. Roshan, Rishav Wang, Xin White, Graham Yamazaki, Masahito |
| author_facet | Gouttenoire, Yann King, Stephen F. Roshan, Rishav Wang, Xin White, Graham Yamazaki, Masahito |
| contents | One of the simplest standard model extensions leading to a domain wall network is a real scalar $S$ with a $Z_2$ symmetry spontaneously broken during universe evolution. Motivated by the swampland program, we explore the possibility that quantum gravity effects are responsible for violation of the discrete symmetry, triggering the annihilation of the domain wall network. We explore the resulting cosmological implications in terms of dark radiation, dark matter, gravitational waves, primordial black holes, and wormholes connected to baby universes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_16414 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cosmological Consequences of Domain Walls Biased by Quantum Gravity Gouttenoire, Yann King, Stephen F. Roshan, Rishav Wang, Xin White, Graham Yamazaki, Masahito High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory One of the simplest standard model extensions leading to a domain wall network is a real scalar $S$ with a $Z_2$ symmetry spontaneously broken during universe evolution. Motivated by the swampland program, we explore the possibility that quantum gravity effects are responsible for violation of the discrete symmetry, triggering the annihilation of the domain wall network. We explore the resulting cosmological implications in terms of dark radiation, dark matter, gravitational waves, primordial black holes, and wormholes connected to baby universes. |
| title | Cosmological Consequences of Domain Walls Biased by Quantum Gravity |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2501.16414 |