Topological Inflation in Supergravity

Abstract

We investigate a topological inflation model in supergravity. By means of numerical simulations, it is confirmed that topological inflation can take place in supergravity. We also show that the condition for successful inflation depends not only on the vacuum-expectation value (VEV) of inflaton field but also on the form of its Kähler potential. In fact, it is found that the required VEV of the inflaton $\varphi$ can be as small as $<\varphi >\simeq 1\times M_G$, where $M_G$ is the gravitational scale.

17 pages, 7 figures. To appear in Phys. Rev. D

References in corpus (5)

• Leptogenesis in Inflaton Decay
• Gravitino Production After Inflation
• Leptogenesis in Inflationary Universe
• Thermal and Non-Thermal Production of Gravitinos in the Early Universe
• Non-Thermal Production of Dangerous Relics in the Early Universe

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• Supergravity Minimal Inflation and its Spectral Index Revisited
• Topological Quintessence
• High Scale SUSY Breaking From Topological Inflation
• Generality of Topological Inflation
• Constraints on Inflation Models from Supersymmetry Breakings
• Inverted Hybrid Inflation as a solution to gravitino problems in Gravity Mediation