Abstract
Inflationary slow-roll dynamics in Einstein gravity with a nonminimal scalar-curvature coupling can be equivalent to that in the certain ∫(R) gravity theory. We review the correspondence and extend it to N=l supergravity. The nonminimal coupling in supergravity is rewritten in terms of the standard ('minimal') N=l matter-coupled supergravity by using curved superspace. The established equivalence between two different inflationary theories means the same inflaton scalar potential, and does not imply the same post-inflationary dynamics and reheating.
Original language | English |
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Article number | 022 |
Journal | Journal of Cosmology and Astroparticle Physics |
Volume | 2012 |
Issue number | 8 |
DOIs | |
Publication status | Published - Aug 2012 |
Externally published | Yes |
Keywords
- Inflation
- Modified gravity
- Supersymmetry and cosmology
ASJC Scopus subject areas
- Astronomy and Astrophysics