Dark energy under a gauge symmetry: A review of gauged quintessence and its implications
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866911095070916608 |
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| author | Kaneta, Kunio Lee, Hye-Sung Lee, Jiheon Yi, Jaeok |
| author_facet | Kaneta, Kunio Lee, Hye-Sung Lee, Jiheon Yi, Jaeok |
| contents | We review the gauged quintessence scenario, wherein the quintessence scalar field responsible for dark energy is promoted to a complex field charged under a dark $U(1)$ gauge symmetry. This construction leads to new and potentially rich cosmological phenomenology. After a concise recap of the standard quintessence scenario, we highlight how a $U(1)$ gauge invariance alters the dynamics of the scalar and the associated dark gauge boson. We survey the evolution of both fields across cosmic history, discuss their possible production via a misalignment mechanism, and examine implications for the Hubble tension. We also comment on potential non-gravitational signals of gauged quintessence through kinetic mixing (the dark photon vector portal). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04820 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dark energy under a gauge symmetry: A review of gauged quintessence and its implications Kaneta, Kunio Lee, Hye-Sung Lee, Jiheon Yi, Jaeok High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics We review the gauged quintessence scenario, wherein the quintessence scalar field responsible for dark energy is promoted to a complex field charged under a dark $U(1)$ gauge symmetry. This construction leads to new and potentially rich cosmological phenomenology. After a concise recap of the standard quintessence scenario, we highlight how a $U(1)$ gauge invariance alters the dynamics of the scalar and the associated dark gauge boson. We survey the evolution of both fields across cosmic history, discuss their possible production via a misalignment mechanism, and examine implications for the Hubble tension. We also comment on potential non-gravitational signals of gauged quintessence through kinetic mixing (the dark photon vector portal). |
| title | Dark energy under a gauge symmetry: A review of gauged quintessence and its implications |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2504.04820 |