Inflationary Hubble Parameter from the Gravitational Wave Spectrum in the General Slow-roll Approximation
arXiv:0709.3211 · doi:10.1088/1475-7516/2007/09/019
Abstract
Improved general slow-roll formulae giving the primordial gravitational wave spectrum are derived in the present work. Also the first and second order general slow-roll inverse formulae giving the Hubble parameter in terms of the gravitational wave spectrum are derived. Moreover, the general slow-roll consistency condition relating the scalar and tensor spectra is obtained.