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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/L00044X/1
负责人：
Jerome Gauntlett
金额：
$ 194.69万
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：
2014
资助国家：
英国
起止时间：
2014 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=ST%2FL00044X%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 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 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 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 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 hole solutions with novel properties that have possible applications to both the quark gluon plasma and poorly understood systems in condensed matter such as high temperature superconductors. Connections between M-theory black holes and measures 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 provides an important indication about the origin of density perturbations in the early universe and of the formation of galactic structures. Over the course of the grant there will be a wealth of new data arriving most notably from the Planck and Spider experiments. We will analyse this data and explore the detailed implications for a host of cosmological models. In parallel with the analysis of observational microwave background data, we will pursue our diverse model building activities, both based around inflationary scenarios and also alternatives. Computational modelling of early-universe field dynamics and structure formation will be carried out and we will also explore the possibility of imprints of quantum gravity on cosmological data. We will also investigate how astrophysical black holes can be used to test modified theories of gravity that have been proposed as alternatives to dark matter.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研究计划主要集中在M理论、量子场论和宇宙学的相互关联的基本问题上。M理论包含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标准模型的核心方法。M理论最有趣的特点之一是，它结合了非微扰杨-米尔斯理论在弦方面的双重描述，导致黑洞和热量子场论之间的深刻联系，也使人们对夸克禁闭等强耦合现象有了新的认识。这些联系将继续以多种不同的方式进行探索，包括使用新的几何技术和完全可积的量子场论模型。弦理论的探索将在传统几何学无法描述的背景下进行，既加深我们对M理论真空空间结构的理解，并应用于粒子物理学现象学，也为M理论的基本自由度提供线索。M理论在理解黑洞的量子性质方面取得了很大的进展。使用分析和数值技术，我们将构建和研究具有新特性的黑洞解决方案，这些新特性可能应用于夸克胶子等离子体和凝聚态物质（如高温超导体）中知之甚少的系统。M理论黑洞和量子纠缠的措施之间的联系也将被探讨。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将在对宇宙微波背景的非高斯修正中找到。这为早期宇宙密度扰动的起源和星系结构的形成提供了重要的指示。在赠款的过程中，将有大量的新数据到达，最显着的是来自普朗克和蜘蛛实验。我们将分析这些数据并探索对许多宇宙学模型的详细影响。在对观测微波背景数据进行分析的同时，我们将继续开展各种模型构建活动，包括基于通胀情景和替代方案的活动。将进行早期宇宙场动力学和结构形成的计算建模，我们还将探索量子引力在宇宙学数据上留下印记的可能性。我们还将研究如何使用天体物理学黑洞来测试已被提出作为暗物质替代品的引力修正理论。我们的研究的广泛链之间存在深刻的协同作用，杨-米尔斯规范理论的非微扰方面的工作，一方面为超引力和超弦理论提供了信息，另一方面也为高引力波的研究提供了信息。另一方面是早期宇宙的温度场和早期宇宙密度波动的计算模型。

项目成果

期刊论文数量（10）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Search for magnetic monopoles with the MoEDAL forward trapping detector in 2.11 fb-1 of 13 TeV proton-proton collisions at the LHC

使用 MoEDAL 前向捕获探测器在 LHC 13 TeV 质子-质子碰撞的 2.11 fb-1 中搜索磁单极子

DOI：
10.1016/j.physletb.2018.05.069
发表时间：
2018
期刊：
Physics Letters B
影响因子：
4.4
作者：
Acharya B
通讯作者：
Acharya B

First search for dyons with the full MoEDAL trapping detector in 13 TeV pp collisions

首次在 13 TeV pp 碰撞中使用完整的 MoEDAL 捕获探测器搜索达子

DOI：
10.48550/arxiv.2002.00861
发表时间：
2020
期刊：
影响因子：
0
作者：
Acharya B
通讯作者：
Acharya B

Search for highly-ionizing particles in pp collisions at the LHC’s Run-1 using the prototype MoEDAL detector

使用原型 MoEDAL 探测器在 LHC Run-1 中搜索 pp 碰撞中的高电离粒子

DOI：
10.1140/epjc/s10052-022-10608-2
发表时间：
2022
期刊：
The European Physical Journal C
影响因子：
0
作者：
Acharya, B.;Alexandre, J.;Benes, P.;Bergmann, B.;Bertolucci, S.;Bevan, A.;Bhattacharyya, R.;Branzas, H.;Burian, P.;Campbell, M.
通讯作者：
Campbell, M.

T-duality in (2, 1) superspace

(2, 1) 超空间中的 T 对偶性