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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2407.18225 |
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| _version_ | 1866914911052890112 |
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| author | Deng, Wei-Ning Handley, Will |
| author_facet | Deng, Wei-Ning Handley, Will |
| contents | Boyle and Turok's $CPT$-symmetric universe model posits that the universe was symmetric at the Big Bang, addressing numerous problems in both cosmology and the Standard Model of particle physics. We extend this model by incorporating the symmetric conditions at the end of the Universe, which impose constraints on the allowed perturbation modes. These constrained modes conflict with the integer wave vectors required by the global spatial geometry in a closed universe. To resolve this conflict, only specific values of curvature are permissible, and in particular the curvature density is constrained to be $Ω_K \in \{-0.014, -0.009, -0.003, \ldots\}$, consistent with Planck observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_18225 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Predicting spatial curvature $Ω_K$ in globally $CPT$-symmetric universes Deng, Wei-Ning Handley, Will Cosmology and Nongalactic Astrophysics Boyle and Turok's $CPT$-symmetric universe model posits that the universe was symmetric at the Big Bang, addressing numerous problems in both cosmology and the Standard Model of particle physics. We extend this model by incorporating the symmetric conditions at the end of the Universe, which impose constraints on the allowed perturbation modes. These constrained modes conflict with the integer wave vectors required by the global spatial geometry in a closed universe. To resolve this conflict, only specific values of curvature are permissible, and in particular the curvature density is constrained to be $Ω_K \in \{-0.014, -0.009, -0.003, \ldots\}$, consistent with Planck observations. |
| title | Predicting spatial curvature $Ω_K$ in globally $CPT$-symmetric universes |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2407.18225 |