Testing multi-field inflation with LiteBIRD

被引：0

作者：

Jinno, Ryusuke ^{[1
]}

Kohri, Kazunori ^{[2
,3
,4
,5
,6
]}

Moroi, Takeo ^{[4
,6
,7
]}

Takahashi, Tomo ^{[8
]}

Hazumic, Masashi ^{[3
,4
,5
,6
,9
]}

机构：

[1] Univ Tokyo, Res Ctr Early Universe, Tokyo 1130033, Japan

[2] Natl Astron Observ Japan NAOJ, Div Sci, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan

[3] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies IPNS, Tsukuba, Ibaraki 3050801, Japan

[4] High Energy Accelerator Res Org KEK, Int Ctr Quantum field Measurement Syst Studies Uni, Tsukuba, Ibaraki 3050801, Japan

[5] Grad Univ Adv Studies SOKENDAI, Hayama, Kanagawa 2400115, Japan

[6] Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, WPI, Kashiwa, Chiba 2778583, Japan

[7] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[8] Saga Univ, Dept Phys, Saga 8408502, Japan

[9] Japan Aerosp Explorat Agcy JAXA, Inst Space & Astronaut Sci ISAS, Sagamihara, Kanagawa 2525210, Japan

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2024年 / 03期

关键词：

inflation; Inflation and CMBR theory; STANDARD MODEL; PERTURBATIONS; CMB;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate expected constraints on the primordial tensor power spectrum from the future cosmic microwave background polarization experiment LiteBIRD as a test of multi -field inflation, where we specifically consider spectator models as representative examples. We argue that the measurements of the tensor -to -scalar ratio and the tensor spectral index, in combination with the constraints on the scalar spectral index from the Planck observation, are useful in testing multi -field inflation models. We also discuss implications for multi -field inflationary model building.

引用

页数：27

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