An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model
We review consequences for the radiation and dark sectors of the cosmological model arising from the postulate that the Cosmic Microwave Background (CMB) is governed by an SU(2) rather than a U(1) gauge principle. We also speculate on the possibility of actively assisted structure formation due to t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/6/9/135 |
| _version_ | 1797555882845798400 |
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| author | Ralf Hofmann |
| author_facet | Ralf Hofmann |
| author_sort | Ralf Hofmann |
| collection | DOAJ |
| description | We review consequences for the radiation and dark sectors of the cosmological model arising from the postulate that the Cosmic Microwave Background (CMB) is governed by an SU(2) rather than a U(1) gauge principle. We also speculate on the possibility of actively assisted structure formation due to the de-percolation of lump-like configurations of condensed ultralight axions with a Peccei–Quinn scale comparable to the Planck mass. The chiral-anomaly induced potential of the axion condensate receives contributions from SU(2)/SU(3) Yang–Mills factors of hierarchically separated scales which act in a screened (reduced) way in confining phases. |
| first_indexed | 2024-03-10T16:54:49Z |
| format | Article |
| id | doaj.art-4bad27ce967842b1bd800d1a8a73ba5e |
| institution | Directory Open Access Journal |
| issn | 2218-1997 |
| language | English |
| last_indexed | 2024-03-10T16:54:49Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Universe |
| spelling | doaj.art-4bad27ce967842b1bd800d1a8a73ba5e2023-11-20T11:11:04ZengMDPI AGUniverse2218-19972020-08-016913510.3390/universe6090135An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological ModelRalf Hofmann0Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, GermanyWe review consequences for the radiation and dark sectors of the cosmological model arising from the postulate that the Cosmic Microwave Background (CMB) is governed by an SU(2) rather than a U(1) gauge principle. We also speculate on the possibility of actively assisted structure formation due to the de-percolation of lump-like configurations of condensed ultralight axions with a Peccei–Quinn scale comparable to the Planck mass. The chiral-anomaly induced potential of the axion condensate receives contributions from SU(2)/SU(3) Yang–Mills factors of hierarchically separated scales which act in a screened (reduced) way in confining phases.https://www.mdpi.com/2218-1997/6/9/135light scalar fieldsaxial anomalySU(2) Yang–Mills thermodynamicsde-percolation of axionic lumpscosmological and galactic dark-matter densities |
| spellingShingle | Ralf Hofmann An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model Universe light scalar fields axial anomaly SU(2) Yang–Mills thermodynamics de-percolation of axionic lumps cosmological and galactic dark-matter densities |
| title | An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model |
| title_full | An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model |
| title_fullStr | An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model |
| title_full_unstemmed | An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model |
| title_short | An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model |
| title_sort | su 2 gauge principle for the cosmic microwave background perspectives on the dark sector of the cosmological model |
| topic | light scalar fields axial anomaly SU(2) Yang–Mills thermodynamics de-percolation of axionic lumps cosmological and galactic dark-matter densities |
| url | https://www.mdpi.com/2218-1997/6/9/135 |
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