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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/P000762/1
负责人：
Daniel Waldram
金额：
$ 248.05万
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：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FP000762%2F1
关键词：
Theory Cosmology Quantum Field

项目摘要

Our STFC research programme 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 to unifying 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 and branes, leading to profound connections between black holes and quantum field theory and also to new insights into strong coupling phenomena such as quark confinement. These connections will continue to be explored in a number of different ways, including using novel geometric techniques, exactly integrable quantum field theory models and theories with massless higher-spin excitations. The ultimate goal is to determine the fundamental degrees of freedom of M-theory which would have profound implications for particle physics phenomenology. Using both analytical and numerical techniques we will also construct and study black-hole solutions with novel properties that have important potential applications to both the quark gluon plasma and poorly understood systems in condensed matter such as high-temperature superconductors, exotic metals and insulators. Cosmology continues to be a highly vibrant area of study driven by a wealth of new data. Key clues to the structure and the origin of the universe are to be found in the details of the cosmic microwave background. This will provide one focus of our activities both by analysing data as well as by studying the cosmological implications of the recently discovered Higgs field and extensions of the Standard Model of particle physics in inflationary scenarios. Understanding dark energy provides an important challenge for cosmology and we will actively pursue the possibility that massive gravity plays an important role. In another direction we will aim to extract imprints of quantum gravity, such as fundamental discreteness of spacetime, on cosmological data. Dark matter is another outstanding challenge that lies that the interface of research in both cosmology and particle physics and we will continue to develop novel and global statistical tools that draw on many different experiments in order to extract the strongest possible constraints and insights.

我们的STFC研究计划集中在m理论，量子场论和宇宙学的相互关联的基本问题。m理论包含了弦理论和超引力理论，是我们统一爱因斯坦广义相对论和粒子物理学标准模型的核心方法。m理论最有趣的特征之一是，它结合了弦和膜对非摄动杨-米尔斯理论的双重描述，导致黑洞和量子场论之间的深刻联系，也对强耦合现象（如夸克约束）有了新的见解。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，精确可积量子场论模型和无质量高自旋激发理论。最终目标是确定m理论的基本自由度，这将对粒子物理现象学产生深远的影响。利用分析和数值技术，我们还将构建和研究具有新特性的黑洞解，这些解在夸克胶子等离子体和凝聚态物质（如高温超导体、外来金属和绝缘体）中有重要的潜在应用。在大量新数据的推动下，宇宙学仍然是一个充满活力的研究领域。宇宙的结构和起源的关键线索可以在宇宙微波背景的细节中找到。通过分析数据，以及研究最近发现的希格斯场的宇宙学含义，以及在暴胀情景下粒子物理标准模型的扩展，这将为我们的活动提供一个重点。理解暗能量为宇宙学提供了一个重要的挑战，我们将积极探索大质量引力在其中扮演重要角色的可能性。在另一个方向上，我们将致力于从宇宙学数据中提取量子引力的印记，比如时空的基本离散性。暗物质是另一个突出的挑战，它是宇宙学和粒子物理学研究的界面，我们将继续开发新的全球统计工具，利用许多不同的实验，以提取最强可能的约束和见解。