Gravitational Waves Produced during the Inflationary Epoch

暴胀时期产生的引力波

• 批准号: 2758345
• 金额: --
• 依托单位: Queen Mary University of London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2758345
• 关键词: Gravitational; Waves; Produced; during; Inflationary

A detailed and comprehensive description of the mathematical tools needed to understand the generation of inflationary gravitational waves. The inflationary gravitational wave power spectrum is successfully reproduced based on a quantum field theory in an expanding universe. The power spectrum is computed using a simple cosmological model of the evolution of the early universe, in which a sequence of Bogoliubov transformations result in the inflationary gravitational waves. Furthermore, the recent efforts into indirectly and directly detecting inflationary gravitational waves and the significance of a detection is discussed.

详细而全面地描述了理解膨胀引力波的产生所需的数学工具。基于膨胀宇宙中的量子场论，成功地再现了膨胀引力波的功率谱。功率谱是使用早期宇宙演化的简单宇宙学模型计算的，在该模型中，一系列Bogoliubov变换导致了膨胀引力波。此外，还讨论了间接和直接探测膨胀引力波的最新努力和探测的意义。