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On the reliability of inflaton potential reconstruction
Physical Review D, Particles and fields
If primordial scalar and tensor perturbation spectra can be inferred from observations of the cosmic background radiation and large-scale structure, then one might hope to reconstruct a unique single-field inflaton potential capable of generating the observed spectra. In this paper we examine conditions under which such a potential can be reliably reconstructed. For it to be possible at all, the spectra must be well fit by a Taylor series expansion. A complete reconstruction requires adoi:10.1103/physrevd.58.043002 fatcat:n2srw4w2a5e5ritkak2b2irbpi