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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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
10 February 2010
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| In: |
Journal of cosmology and astroparticle physics
Year: 2010, Issue: 2, Pages: 1-16 |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2010/02/011 |
| Online Access: | 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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| Author Notes: | Iain A. Brown, Lily Schrempp, and Kishore Ananda |
| Summary: | 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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| Item Description: | Gesehen am 01.03.2023 |
| Physical Description: | Online Resource |
| ISSN: | 1475-7516 |
| DOI: | 10.1088/1475-7516/2010/02/011 |