An analytic treatment of quartic hilltop inflation
Abstract
Quartic hilltop inflation remains one of the most successful inflationary models. Yet, the expectations of early treatments of hilltop inflation would contradict the observations and render the model excluded. However, recent numerical treatment has demonstrated that quartic hilltop inflation actually fares well with observations. In this work, a fully analytic treatment of the model aims to dispel the mystery surrounding the behaviour of quartic hilltop inflation. The results obtained are in excellent agreement with numerical works on the subject, yet offer simple analytic formulas to calculate observables and easily test thereby quartic hilltop inflation, hopefully revealing information on the theoretical background.
- Publication:
-
Physics Letters B
- Pub Date:
- October 2020
- DOI:
- 10.1016/j.physletb.2020.135688
- arXiv:
- arXiv:2006.06029
- Bibcode:
- 2020PhLB..80935688D
- Keywords:
-
- High Energy Physics - Phenomenology;
- Astrophysics - Cosmology and Nongalactic Astrophysics;
- General Relativity and Quantum Cosmology
- E-Print:
- 8 pages, 3 figures, added reference