Extended slow-roll conditions and rapid-roll conditions
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo 156-8550 (Japan)
- Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara 229-8558 (Japan)
We derive slow-roll conditions for a scalar field which is non-minimally coupled with gravity in a consistent manner and express spectral indices of scalar/tensor perturbations in terms of the slow-roll parameters. The conformal invariance of the curvature perturbation is proved without linear approximations. Rapid-roll conditions are also derived, and the relation with the slow-roll conditions is discussed.
- OSTI ID:
- 22156779
- Journal Information:
- Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
- Country of Publication:
- United States
- Language:
- English
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