Initial conditions for Starobinsky inflation with a positive spatial curvatureстатья
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Дата последнего поиска статьи во внешних источниках: 22 мая 2024 г.
Аннотация:We have found numerically initial conditions in the (R,H) plane leading to a successful Starobinsky inflation in R+R^2 gravity for a isotropic metrics with positive spatial curvature. Trajectories can reach inflation regime either directly or going through a bounce, and even recollapse followed by a bounce. Our numerical plots indicate that ``good" initial conditions exist even for big initial spatial curvature, however, we argue that such a trajectory must cross a region of rather big R or H. This means that the range of viability of R+R^2 theory in the (R,H) plane directly affect the question of viability of Starobinsky inflation for a positive spatial curvature isotropic Universe.