ITP OpenIR  > SCI期刊论文
Mizuno, Shuntaro; Mukohyama, Shinji2; Pi, Shi2,3; Zhang, Yun-Long
Universal upper bound on the inflationary energy scale from the trans-Planckian censorship conjecture
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordSPECTRUM PERTURBATIONS ROBUSTNESS FLATNESS HORIZON MODELS
AbstractWe study the constraint on the inflationary energy scale from the recently proposed trans-Planckian censorship conjecture (TCC). We find a universal upper bound on the inflationary Hubble expansion rate H-inf which is solely determined by the reheating temperature T-rh: H-inf/M-pl less than or similar to T-0/T-rh, where T-0 is the photon temperature today. The upper limit can be saturated by a postinflationary oscillatory stage with the critical equation-of-state parameter w approximate to 1/3, or by an inflation model with multiple stages. In the lowest reheating temperature required for big bang nucleosynthesis, the upper bound on the tensor-to-scalar ratio r at the CMB scales is r less than or similar to 10(-8), which can be realized in many string-inspired inflation models.
2020
ISSN1550-7998
Volume102Issue:2Pages:21301
Cooperation Status国际
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Particles & Fields
DOI10.1103/PhysRevD.102.021301
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27531
CollectionSCI期刊论文
Affiliation1.Hachinohe Coll, Natl Inst Technol, Dept Liberal Arts & Engn Sci, Aomori 0391192, Japan
2.Kyoto Univ, Ctr Gravitat Phys, Yukawa Inst Theoret Phys YITP, Kyoto 6068502, Japan
3.Univ Tokyo, Kavli Inst Phys & Math Universe WPI, Inst Adv Study, Kashiwa, Chiba 2778583, Japan
4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Mizuno, Shuntaro,Mukohyama, Shinji,Pi, Shi,et al. Universal upper bound on the inflationary energy scale from the trans-Planckian censorship conjecture[J]. PHYSICAL REVIEW D,2020,102(2):21301.
APA Mizuno, Shuntaro,Mukohyama, Shinji,Pi, Shi,&Zhang, Yun-Long.(2020).Universal upper bound on the inflationary energy scale from the trans-Planckian censorship conjecture.PHYSICAL REVIEW D,102(2),21301.
MLA Mizuno, Shuntaro,et al."Universal upper bound on the inflationary energy scale from the trans-Planckian censorship conjecture".PHYSICAL REVIEW D 102.2(2020):21301.
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