当前位置: X-MOL 学术Eur. Phys. J. C › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Thick brane structures in generalized hybrid metric-Palatini gravity
The European Physical Journal C ( IF 4.2 ) Pub Date : 2021-01-13 , DOI: 10.1140/epjc/s10052-021-08840-3
João Luís Rosa , D. A. Ferreira , Dionisio Bazeia , Francisco S. N. Lobo

In this work, we study 5-dimensional braneworld scenarios in the scalar-tensor representation of the generalized hybrid metric-Palatini gravitational theory. We start by considering a model for a brane supported purely by the gravitational scalar fields of the theory and then consider other distinct cases where the models are also supported by an additional matter scalar field. We investigate the stability of the gravity sector and show that the models are all robust against small fluctuations of the metric. In particular, in the presence of the additional scalar field, we find that the profile of the gravitational zero mode may be controlled by the parameters of the model, being also capable of developing internal structure.

A preprint version of the article is available at ArXiv.


中文翻译:

广义混合度量-帕拉蒂尼引力下的粗臂结构

在这项工作中,我们研究广义混合度量-帕拉蒂尼引力理论的标量-张量表示中的5维braneworld场景。我们首先考虑仅由理论的引力标量场支持的麸皮模型,然后考虑模型也由附加物质标量场支持的其他不同情况。我们研究了重力扇形的稳定性,并表明该模型对于度量的小波动都具有鲁棒性。特别是,在存在额外的标量场的情况下,我们发现重力零模的轮廓可以由模型的参数控制,并且还能够开发内部结构。

该文章的预印本可从ArXiv获得。
更新日期:2021-01-14
down
wechat
bug