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Quantum Field Theory, Quantum Gravity, and the Swampland

量子场论、量子引力和沼泽地

基本信息

批准号：
1914934
负责人：
Benjamin Heidenreich
金额：
$ 22.5万
依托单位：
University of Massachusetts Amherst
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-09-01 至 2022-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1914934&HistoricalAwards=false
关键词：
Quantum Field Theory Gravity Swampland

项目摘要

This award funds the research activities of Professor Benjamin Heidenreich at the University of Massachusetts Amherst.A long-standing goal of theoretical physics is to reconcile quantum mechanics and general relativity (Einstein's theory of gravity), two extremely successful paradigms used to describe physics at vastly different scales. String theory provides many mathematically consistent examples of such quantum theories of gravity, but it is unclear which, if any, correctly describes our universe. Thus it is difficult to make experimentally testable predictions. Professor Heidenreich's research concerns the so-called "swampland" program, which attempts to identify features that are common to all mathematically consistent quantum gravities, potentially leading to predictions that can be tested in future experiments. Research in this area serves the national interest by promoting scientific progress on the vitally important question of the nature of quantum gravity which lies at the heart of much of theoretical physics. Longer-term benefits potentially include synergies with experimental physics. This project will also have significant broader impacts, both on the scientific training of undergraduate and graduate students at the University of Massachusetts Amherst involved in this research and through Professor Heidenreich's outreach activities with high-school students in the Amherst area. In addition, Professor Heidenreich will communicate ideas on the forefront of quantum-gravity research to a broader scientific audience through a planned review article.More technically, Professor Heidenreich will study various swampland criteria in depth, such as the Weak Gravity Conjecture, the Swampland Distance Conjecture, and others, in the various forms that they have appeared in the literature. Heidenreich's research aims to sharpen these criteria as much as possible, subject them to strenuous theoretical tests, and if possible relate them to basic principles underlying quantum gravity. The ultimate aim of this research program is to build a scientific consensus on which features are and are not universal to all quantum gravities, potentially enabling testable predictions of quantum gravity to be made in the future. A related, technical focus of Heidenreich's research is the study of strong coupling and S-duality in gauge theories and string theory, especially in theories with four or fewer supercharges. Gauge theory dualities of this kind can lead to additional insights into the physics of D-branes and fluxes in string theory, and vice versa, improving our understanding of the landscape of quantum gravities constructible in string theory.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项资助了马萨诸塞大学本杰明·海登瑞克教授的研究活动。理论物理学的一个长期目标是调和量子力学和广义相对论(爱因斯坦的引力理论)，这两个极其成功的范例用于在非常不同的尺度上描述物理。弦理论为这类量子引力理论提供了许多在数学上一致的例子，但尚不清楚哪种理论正确地描述了我们的宇宙。因此，很难做出实验上可检验的预测。海登瑞克教授的研究涉及所谓的“沼泽”计划，该计划试图确定所有数学上一致的量子引力所共有的特征，这可能会导致预测结果，这些预测可以在未来的实验中得到检验。这一领域的研究通过促进量子引力本质这一至关重要的问题的科学进步来服务于国家利益，量子引力本质是许多理论物理的核心。更长期的好处可能包括与实验物理学的协同效应。该项目还将对马萨诸塞大学阿默斯特分校参与这项研究的本科生和研究生的科学培训以及海登瑞克教授在阿默斯特地区与高中生的外联活动产生重大而广泛的影响。此外，海登瑞克教授将通过一篇有计划的评论文章向更广泛的科学受众交流量子引力研究前沿的想法。更严格地说，海登瑞克教授将以文献中出现的各种形式深入研究各种沼泽标准，如弱引力猜想、天鹅距离猜想等。海登瑞克的研究旨在尽可能地强化这些标准，让它们接受严格的理论测试，如果可能的话，将它们与量子引力背后的基本原理联系起来。这项研究计划的最终目的是就哪些特征对所有量子引力是通用的，哪些不是通用的达成科学共识，从而有可能在未来对量子引力进行可测试的预测。海登瑞克研究的一个相关的技术焦点是规范理论和弦理论中的强耦合和S对偶，特别是在具有四个或更少超荷的理论中。这种规范理论的对偶性可以导致对弦理论中D膜和磁通的物理的更多洞察，反之亦然，从而提高我们对可在弦理论中构建的量子引力图景的理解。该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

期刊论文数量（11）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Chern-Weil global symmetries and how quantum gravity avoids them

陈-韦尔全局对称性以及量子引力如何避免它们

DOI：
10.1007/jhep11(2021)053
发表时间：
2021
期刊：
Journal of High Energy Physics
影响因子：
5.4
作者：
Heidenreich, Ben;McNamara, Jacob;Montero, Miguel;Reece, Matthew;Rudelius, Tom;Valenzuela, Irene
通讯作者：
Valenzuela, Irene

Deconfining $$ \mathcal{N} $$ = 2 SCFTs or the art of brane bending

解除 $$ mathcal{N} $$ = 2 SCFT 或膜弯曲艺术的限制