Description
The dark energy scalar field is here presented as a mean-field effect arising from the collective motion of interacting structures on an expanding lattice. This cosmological analogue to solid-state soft phonons in an unstable crystal network is shown to produce cosmic acceleration while mimicking phantom equation of state. From an analysis of the Hubble diagram of type Ia supernovae, we present constraints on the parameters of the cosmic Lagrange chain, as well as on time-variation of the soft phonon equation of state, before we conclude on new phenomenology associated to this interpretation.| Period | 3 Jul 2012 |
|---|---|
| Event type | Conference |
| Location | Stockholm, Sweden |
Keywords
- Dark Energy
- Cosmology
- Phonon
- Acceleration
- Universe
Documents & Links
Related content
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Research output
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Cosmic acceleration with cosmological soft phonon
Research output: Contribution in Book/Catalog/Report/Conference proceeding › Conference contribution
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Student theses
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Un modèle effectif de la déformation du réseau galactique pour l'interprétation de l'énergie noire
Student thesis: Master types › Master in Physics