Preheating with non-minimally coupled scalar fields in higher-curvature inflation models

S. Tsujikawa, K. Maeda, T. Torii

In higher-curvature inflation models ($R+{\alpha }_n{R}^n$), we study a parametric preheating of a scalar field $\chi$ coupled non-minimally to a spacetime curvature $R$ ($\xi R{\chi }^2$). In the cas…