Fuzzy Dark Matter and the Dark Dimension
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866911799900635136 |
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| author | Anchordoqui, Luis A. Antoniadis, Ignatios Lust, Dieter |
| author_facet | Anchordoqui, Luis A. Antoniadis, Ignatios Lust, Dieter |
| contents | We propose a new dark matter contender within the context of the so-called ``dark dimension'', an innovative 5-dimensional construct that has a compact space with characteristic length-scale in the micron range. The new dark matter candidate is the radion, a bulk scalar field whose quintessence-like potential drives an inflationary phase described by a 5-dimensional de Sitter (or approximate) solution of Einstein equations. We show that the radion could be ultralight and thereby serve as a fuzzy dark matter candidate. We advocate a simple cosmological production mechanism bringing into play unstable Kaluza-Klein graviton towers which are fueled by the decay of the inflaton. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2307_01100 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Fuzzy Dark Matter and the Dark Dimension Anchordoqui, Luis A. Antoniadis, Ignatios Lust, Dieter High Energy Physics - Phenomenology High Energy Physics - Theory We propose a new dark matter contender within the context of the so-called ``dark dimension'', an innovative 5-dimensional construct that has a compact space with characteristic length-scale in the micron range. The new dark matter candidate is the radion, a bulk scalar field whose quintessence-like potential drives an inflationary phase described by a 5-dimensional de Sitter (or approximate) solution of Einstein equations. We show that the radion could be ultralight and thereby serve as a fuzzy dark matter candidate. We advocate a simple cosmological production mechanism bringing into play unstable Kaluza-Klein graviton towers which are fueled by the decay of the inflaton. |
| title | Fuzzy Dark Matter and the Dark Dimension |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2307.01100 |