Primordial Spectral Indexes From Generalized Einstein Theories

PHYSICAL REVIEW D, no. 8 (1995): 4295-4306

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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 nonminimally coupled to the Ricci curvature scalar. In most cases, n(s) may be written as a function of the nonminimal curvature coupling strength xi alone, with n(s) (xi) le...更多

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