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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| Main Author: | |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 August 2020
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| In: |
Universe
Year: 2020, Volume: 6, Issue: 9 |
| ISSN: | 2218-1997 |
| DOI: | 10.3390/universe6090135 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.3390/universe6090135 Verlag, lizenzpflichtig, Volltext: https://www.mdpi.com/2218-1997/6/9/135 
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| Author Notes: | Ralf Hofmann |
| Summary: | 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. |
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| Item Description: | Gesehen am 04.11.2020 |
| Physical Description: | Online Resource |
| ISSN: | 2218-1997 |
| DOI: | 10.3390/universe6090135 |