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M-Theory, Cosmology and Quantum Field Theory

M 理论、宇宙学和量子场论

基本信息

批准号：
ST/J000353/1
负责人：
Jerome Gauntlett
金额：
$ 192.97万
依托单位：
Imperial College London
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2011
资助国家：
英国
起止时间：
2011 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FJ000353%2F1
关键词：
Theory Cosmology Quantum Field

项目摘要

The STFC research programme of the Theoretical Physics Group at Imperial College London is focused on the interrelated fundamental problems of M-theory, quantum field theory and cosmology. M-theory, which subsumes string theory and supergravity theory, is our central approach in attempting to unify Einstein's theory of General Relativity with the Standard Model of particle physics. One of the most interesting features of M-theory is that it incorporates dual descriptions of non-perturbative Yang-Mills theories in terms of strings leading to profound connections between black holes and thermal quantum field theory and new insights into strong coupling phenomena such as confinement. These connections will continue to be explored in a number of different ways, including using novel geometric techniques and exactly integrable quantum field theory models. Exploration of string theory on backgrounds which cannot be described by conventional geometry will be carried out, both to deepen our understanding of the structure of the space of vacua of M-theory with applications to particle physics phenomenology and also to provide hints as to the fundamental degrees of freedom of M-theory. There has been a great deal of progress in understanding the quantum properties of black holes in M-theory. Using both analytical and numerical techniques we will construct and study black holes with novel horizon topologies and with possible applications to both quark gluon plasma and poorly understood systems in condensed matter such as high temperature superconductors. Connections between M-theory black holes and measure of quantum entanglement will also be explored. In the area of cosmology and related aspects of quantum field theory, key clues to the structure of the big bang origin of the universe are to be found in the non-Gaussian corrections to the cosmic microwave background. This is an important indication about the origin of density perturbations in the early universe and of the formation of galactic structures. On the one hand we have established participation both in observational programmes such as Planck, Spider and BPol, and also in the analysis of this data. On the other hand, fully developed models are needed for the evolution of quantum fields in the early universe and their effect on the evolution of early universe structure. So, in parallel with the analysis of observational microwave background data, we will pursue computational modelling of early-universe field dynamics and structure formation. There is a deep synergy between the broad strands of our research, with work on the non-perturbative aspects of Yang- Mills gauge theories informing both supergravity and superstring theory on the one hand and the study of high- temperature fields in the early universe and the computational modelling of early-universe density fluctuations on the other.

伦敦帝国理工学院理论物理组的STFC研究计划专注于相互关联的M理论、量子场论和宇宙学的基本问题。M理论包含弦理论和超重力理论，是我们试图将爱因斯坦的广义相对论与粒子物理标准模型统一起来的中心方法。M理论最有趣的特征之一是，它结合了非微扰杨-米尔斯理论在弦方面的双重描述，导致了黑洞和热量子场理论之间的深刻联系，并对限制等强耦合现象提出了新的见解。这些联系将继续以许多不同的方式进行探索，包括使用新的几何技术和精确可积的量子场论模型。我们将在传统几何无法描述的背景上探索弦理论，这既是为了加深我们对M理论真空空间结构的理解，并将其应用于粒子物理唯象学，也是为了提供关于M理论基本自由度的提示。在M理论中对黑洞的量子性质的理解已经有了很大的进展。利用解析和数值方法，我们将构建和研究具有新的视界拓扑的黑洞，并可能应用于夸克胶子等离子体和在凝聚态物质中鲜为人知的系统，如高温超导体。我们还将探讨M理论黑洞和量子纠缠测量之间的联系。在宇宙学和量子场论的相关方面，宇宙大爆炸起源结构的关键线索可以在宇宙微波背景的非高斯修正中找到。这是关于早期宇宙中密度扰动的起源和星系结构形成的一个重要迹象。一方面，我们既参与了普朗克、SPIDER和BPOL等观测项目，也参与了对这些数据的分析。另一方面，早期宇宙中量子场的演化及其对早期宇宙结构演化的影响需要充分发展的模型。因此，在分析观测微波背景数据的同时，我们将继续对早期宇宙的场动力学和结构形成进行计算模拟。我们的广泛研究之间存在着深度的协同，一方面是杨-米尔斯规范理论的非微扰方面的工作，为超重力和超弦理论提供了信息，另一方面是对早期宇宙中的高温场的研究，以及对早期宇宙密度波动的计算建模。