高维均匀暴胀中的暴胀模型分析

IF 5.5 1区物理与天体物理 Q1 Physics and Astronomy

Journal of High Energy Physics Pub Date : 2025-04-10 DOI:10.1007/JHEP04(2025)077

Takuya Hirose

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引用次数: 0

摘要

我们考虑高维均匀膨胀，其中额外维度在膨胀期间以与三维非紧空间相同的速率膨胀。我们计算了D + 4维的宇宙学扰动，并推导了谱指数ns和张量标量比r。我们分析了五种暴胀模型：混沌暴胀、自然暴胀、四次山顶暴胀、SUSY自发破碎暴胀和R2暴胀。通过将这些模型的结果与普朗克2018约束相结合，我们讨论了除了一个额外维度的情况外，额外维度空间不希望以与三维非紧化空间相同的速度膨胀。

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Analysis of inflationary models in higher-dimensional uniform inflation

We consider higher-dimensional uniform inflation, in which the extra dimensions expand at the same rate as three-dimensional non-compact space during inflation. We compute the cosmological perturbation in D + 4 dimensions and derive the spectral index n_s and the tensor-scalar ratio r. We analyze five inflationary models: chaotic inflation, natural inflation, quartic hilltop inflation, inflation with spontaneously broken SUSY, and R² inflation. By combining the results from these models with the Planck 2018 constraints, we discuss that it is not desirable for the extra-dimensional space to expand at the same rate as the three-dimensional non-compact space, except for the case of one extra dimension.

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来源期刊

Journal of High Energy Physics 物理-物理：粒子与场物理

CiteScore

10.30

自引率

46.30%

发文量

2107

审稿时长

1.5 months

期刊介绍： The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).