Preheating with non-minimally coupled scalar fields in higher-curvature inflation models
| dc.creator | Tsujikawa, S. | |
| dc.creator | Maeda, K. | |
| dc.creator | Torii, T. | |
| dc.date | 1999-06-25 | |
| dc.date | 1999-06-28 | |
| dc.date.accessioned | 2026-07-07T11:35:42Z | |
| dc.date.available | 2026-07-07T11:35:42Z | |
| dc.description | In higher-curvature inflation models ($R+α_n R^n$), we study a parametric preheating of a scalar field $χ$ coupled non-minimally to a spacetime curvature $R$ ($ξR χ^2$). In the case of $R^2$-inflation model, efficient preheating becomes possible for rather small values of $ξ$, i.e. $|ξ|< several. Although the maximal fluctuation $\sqrt{< χ^2 >}_{max} \approx 2 \times10^{17}$ GeV for $ξ\approx -4$ is almost the same as the chaotic inflation model with a non-minimally coupled $χ$ field, the growth rate of the fluctuation becomes much larger and efficient preheating is realized. We also investigate preheating for $R^4$ model and find that the maximal fluctuation is $\sqrt{< χ^2 >}_{max} \approx 8 \times 10^{16}$ GeV for $ξ\approx -35$. | |
| dc.description | 31pages, 12figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9906501 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9906501 | |
| dc.identifier | Phys.Rev.D60:123505,1999 | |
| dc.identifier | doi:10.1103/PhysRevD.60.123505 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198681 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Preheating with non-minimally coupled scalar fields in higher-curvature inflation models | |
| dc.type | text |