特殊$$F(\phi ,T)$$重力下的观测限制和慢滚d膜膨胀

IF 2.8 4区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

General Relativity and Gravitation Pub Date : 2025-07-22 DOI:10.1007/s10714-025-03448-4

Feyzollah Younesizadeh, Davoud Kamani

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引用次数: 0

摘要

我们将研究由修正引力F(φ，T)F（\phi，T）驱动的d膜模型的暴胀。这种引力最近在文献中被引入。结合最新的普朗克数据，研究了F(φ，T)F（\phi，T）引力中d膜暴胀理论的可行性。我们将通过d膜模型分析F(φ)TF(\phi) t重力背景下的慢滚膨胀。然后，我们计算膨胀动力学，得到标量谱指数“nsn_s”和张量标量比“r”。此外，我们还研究了该模型的再加热动力学。我们的模型准确地覆盖了普朗克数据和d膜暴胀的左侧。

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Observational restrictions and slow-roll D-brane inflation in the special $F(\phi ,T)$ gravity

We shall investigate the inflation for the D-brane model, motivated by the modified gravity $F(\phi ,T)$. This gravity has been recently introduced in the literature. The feasibility of the D-brane inflation theory in the $F(\phi ,T)$-gravity has been studied in conjunction with the most recent Planck data. We shall analyze the slow-roll inflation in the context of the $F(\phi )T$-gravity, via the D-brane model. Then, we shall calculate the inflation dynamics to obtain the scalar spectral index “$n_s$” and the tensor-to-scalar ratio “r”. Besides, we investigate the dynamics of the reheating for this model. Our model accurately covers the left-hand side of the Planck data and the D-brane inflation.

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来源期刊

General Relativity and Gravitation 物理-天文与天体物理

CiteScore

4.60

自引率

3.60%

发文量

136

审稿时长

3 months

期刊介绍： General Relativity and Gravitation is a journal devoted to all aspects of modern gravitational science, and published under the auspices of the International Society on General Relativity and Gravitation. It welcomes in particular original articles on the following topics of current research: Analytical general relativity, including its interface with geometrical analysis Numerical relativity Theoretical and observational cosmology Relativistic astrophysics Gravitational waves: data analysis, astrophysical sources and detector science Extensions of general relativity Supergravity Gravitational aspects of string theory and its extensions Quantum gravity: canonical approaches, in particular loop quantum gravity, and path integral approaches, in particular spin foams, Regge calculus and dynamical triangulations Quantum field theory in curved spacetime Non-commutative geometry and gravitation Experimental gravity, in particular tests of general relativity The journal publishes articles on all theoretical and experimental aspects of modern general relativity and gravitation, as well as book reviews and historical articles of special interest.