Phase Transitions in the Early Universe: Implications to Particle Physics and Cosmology

早期宇宙的相变：对粒子物理学和宇宙学的影响

• 批准号: 9204726
• 负责人: Marcelo Gleiser
• 金额: $ 6.26万
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9204726&HistoricalAwards=false
• 关键词: Phase; Transitions; Early; Universe; Implications

Theoretical research at the interface of elementary particle physics and cosmology will focus on how physical processes that took place early in the evolution of the Universe can help us understand both the fundamental structure of matter and its interactions, and the large-scale structure of the Universe. The methods to be used consist of analytical tools from theoretical particle physics and large-scale computer simulations of non-linear field theories, designed to model the dynamics of phase transitions and spontaneous symmetry breaking in an expanding Universe. Applications to the construction of models of particle interactions and to the impact of phase transitions on cosmology will be analyzed in detail. It is expected that the results obtained by this research activity will help clarify many of the complex issues that arise when one examines some of the fundamental problems of particle physics and cosmology, such as the excess of matter over antimatter in the Universe, as well as the origin of its rich large-scale structure.

基本粒子物理学和宇宙学界面的理论研究将集中于宇宙演化早期发生的物理过程如何帮助我们理解物质的基本结构及其相互作用，以及宇宙的大尺度结构。 所使用的方法包括来自理论粒子物理学和非线性场论的大规模计算机模拟的分析工具，旨在模拟膨胀宇宙中相变和自发对称性破缺的动力学。 将详细分析粒子相互作用模型的构建以及相变对宇宙学影响的应用。 预计这项研究活动获得的结果将有助于澄清在研究粒子物理学和宇宙学的一些基本问题时出现的许多复杂问题，例如宇宙中物质相对反物质的过量，以及其丰富的大尺度结构的起源。