An SU(2) Gauge Principle for the Cosmic Microwave Background: Perspectives on the Dark Sector of the Cosmological Model

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: Ralf Hofmann
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Universe
Subjects:
light scalar fields
axial anomaly
SU(2) Yang–Mills thermodynamics
de-percolation of axionic lumps
cosmological and galactic dark-matter densities
Online Access:https://www.mdpi.com/2218-1997/6/9/135
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spelling doaj-4bad27ce967842b1bd800d1a8a73ba5e2020-11-25T03:54:24ZengMDPI AGUniverse2218-19972020-08-01613513510.3390/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
collection DOAJ
language English
format Article
sources DOAJ
author Ralf Hofmann
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
author_facet Ralf Hofmann
author_sort Ralf Hofmann
title 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_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_sort su(2) gauge principle for the cosmic microwave background: perspectives on the dark sector of the cosmological model
publisher MDPI AG
series Universe
issn 2218-1997
publishDate 2020-08-01
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.
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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AT ralfhofmann su2gaugeprincipleforthecosmicmicrowavebackgroundperspectivesonthedarksectorofthecosmologicalmodel
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