Primordial spectral indices from generalized Einstein theories
نویسندگان
چکیده
منابع مشابه
Primordial spectral indices from generalized Einstein theories.
Primordial spectral indices are calculated to second order in slow-roll parameters for three closely-related models of inflation, all of which contain a scalar field non-minimally coupled to the Ricci curvature scalar. In most cases, ns may be written as a function of the nonminimal curvature coupling strength ξ alone, with ns(ξ) ≤ 1, although the constraints on ξ differ greatly between ‘new in...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1995
ISSN: 0556-2821
DOI: 10.1103/physrevd.52.4295