2016年
Primordial black holes as dark matter in supergravity inflation models
Phys. Rev.
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- 巻
- D94
- 号
- 8
- 開始ページ
- 083523
- 終了ページ
- 083523
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.94.083523
We propose a novel scenario to produce abundant primordial black holes (PBHs) in new inflation which is a second phase of a double inflation in the supergravity frame work. In our model, some preinflation phase before the new inflation is assumed and it would be responsible for the primordial curvature perturbations on the cosmic microwave background scale, while the new inflation produces only the small scale perturbations. Our new inflation model has linear, quadratic, and cubic terms in its potential and PBH production corresponds with its flat inflection point. The linear term can be interpreted to come from a supersymmetry-breaking sector, and with this assumption, the vanishing cosmological constant condition after inflation and the flatness condition for the inflection point can be consistently satisfied.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevD.94.083523
- ORCIDのPut Code : 48571853
- arXiv ID : arXiv:1606.07631