Potential reconstruction from general power spectrum in single-field inflation
- 주제(키워드) cosmological perturbation theory , inflation , physics of the early universe
- 주제(기타) Astronomy & Astrophysics
- 주제(기타) Physics, Particles & Fields
- 설명문(일반) [Choi, Ki-Young; Kang, Su-beom; Raveendran, Rathul Nath] Sungkyunkwan Univ, Dept Phys, Suwon 16419, South Korea; [Gong, Jinn-Ouk] Ewha Womans Univ, Dept Sci Educ, Seoul 03760, South Korea; [Gong, Jinn-Ouk] Asia Pacific Ctr Theoret Phys, Pohang 37673, South Korea
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted
- 발행기관 IOP Publishing Ltd
- 발행년도 2022
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000190158
- 본문언어 영어
- Published As https://doi.org/10.1088/1475-7516/2022/01/012
초록/요약
We suggest a new method to reconstruct, within canonical single-field inflation, the inflaton potential directly from the primordial power spectrum which may deviate significantly from near scale-invariance. Our approach relies on a more generalized slow-roll approximation than the standard one, and can probe the properties of the inflaton potential reliably. We give a few examples for reconstructing potential and discuss the validity of our method.
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