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Post-inflationary thermal histories and the refractive index of relic gravitons
We investigate the impact of the post-inflationary thermal histories on the cosmic graviton spectrum caused by the inflationary variation of their refractive index. Depending on the frequency band, the spectral energy distribution can be mildly red, blue, or even violet. Wide portions of the paramet...
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| Lenguaje: | eng |
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2018
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| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.98.103509 http://cds.cern.ch/record/2622279 |