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Consistency relation for single scalar inflation | | Andrei Gruzinov
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4 Jun 2004 | | Journal: | Phys.Rev. D71 (2005) 027301 | | Subject: | astro-ph hep-th | | Abstract: | Single scalar field inflation with a generic, non-quadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables -- the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation. | | Source: | arXiv, astro-ph/0406129 | | Services: | Forum | Review | PDF | Favorites | |
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