Accelerating the universe with gravitational waves
Inflation generically produces primordial gravitational waves with a red spectral tilt. In this paper we calculate the backreaction produced by these gravitational waves on the expansion of the universe. We find that in radiation domination the backreaction acts as a relativistic fluid, while in mat...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
10 February 2010
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| In: |
Journal of cosmology and astroparticle physics
Year: 2010, Heft: 2, Pages: 1-16 |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2010/02/011 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1475-7516/2010/02/011 Verlag, lizenzpflichtig, Volltext: https://dx.doi.org/10.1088/1475-7516/2010/02/011 
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| Verfasserangaben: | Iain A. Brown, Lily Schrempp, and Kishore Ananda |
| Zusammenfassung: | Inflation generically produces primordial gravitational waves with a red spectral tilt. In this paper we calculate the backreaction produced by these gravitational waves on the expansion of the universe. We find that in radiation domination the backreaction acts as a relativistic fluid, while in matter domination a small dark energy emerges with an equation of state weff ≈ −8/9. |
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| Beschreibung: | Gesehen am 01.03.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2010/02/011 |