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The refractive index of relic gravitons
The dynamical evolution of the refractive index of the tensor modes of the geometry produces a specific class of power spectra characterized by a blue (i.e. slightly increasing) slope which is directly determined by the competition of the slow-roll parameter and of the rate of variation of the refra...
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| Lenguaje: | eng |
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2015
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| Acceso en línea: | https://dx.doi.org/10.1088/0264-9381/33/12/125002 http://cds.cern.ch/record/2033850 |