説明
Hyperbolic inflation is an extension of the slow-roll inflation in multi-field models. We extend hyperbolic inflation by adding a gauge field and find four-type attractor solutions: slow-roll inflation, hyperbolic inflation, anisotropic slow roll inflation, and anisotropic hyperbolic inflation. We perform the stability analysis with the dynamical system method. We also study the transition behaviors of solutions between anisotropic slow roll inflation and anisotropic hyperbolic inflation. Our result indicates that destabilization of the standard slow-roll inflation ubiquitously occurs in multi-scalar-gauge field inflationary scenarios.
20 pages, 12 figures. V2: Fixes typos
収録刊行物
-
- Journal of Cosmology and Astroparticle Physics
-
Journal of Cosmology and Astroparticle Physics 2021 (09), 026-, 2021-09-01
IOP Publishing
- Tweet
キーワード
詳細情報 詳細情報について
-
- CRID
- 1360013173239226624
-
- ISSN
- 14757516
-
- 資料種別
- journal article
-
- データソース種別
-
- Crossref
- KAKEN
- OpenAIRE