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 |
|---|---|
| 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
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Ketov, S. V., & Starobinsky, A. A. (2012). Inflation and nonminimal scalar-curvature coupling in gravity and supergravity. Journal of Cosmology and Astroparticle Physics, 2012(8), [022]. https://doi.org/10.1088/1475-7516/2012/08/022