Cosmological applications of group field theory

群场论的宇宙学应用

• 批准号: 2485550
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2485550
• 关键词: Cosmological; applications; group; field; theory

This project deals with investigating the consequences of the group field theory approach to quantum gravity for cosmology. Concretely, it analyses models for which the Universe in cosmology is made up of many fundamental "quanta" described by excitations of the quantum field in group field theory. Previously such models where constructed for the special case in which the Universe is homogeneous and isotropic, which is a good but very simple approximation to the observed Universe. In this project we will extend this construction to include anisotropies and inhomogeneities, in order to make more realistic models of the Universe. One goal would be to extract observable consequences for the Universe.

该项目涉及研究宇宙学量子重力的群体野外理论方法的后果。具体而言，它分析了宇宙学宇宙的模型由量子场理论中的量子场激发所描述的许多基本的“量子”组成。以前，这种模型是为宇宙均匀且各向同性的特殊情况构建的，这是对观察到的宇宙的良好但非常简单的近似。在这个项目中，我们将扩展此结构，以包括各向异性和不均匀性，以制造更现实的宇宙模型。一个目标是为宇宙提取可观察到的后果。