RUI: Investigations of Lorentz Violation

RUI：洛伦兹违反的调查

• 批准号: 1819412
• 负责人: Matthew Mewes
• 金额: $ 12万
• 依托单位: California Polytechnic State University Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1819412&HistoricalAwards=false
• 关键词: RUI; Investigations; Lorentz; Violation

This RUI award funds the research activities of Professor Matthew Mewes at California Polytechnic State University.Lorentz invariance is thought to be an exact symmetry of nature. It is the basis of special relativity and implies that the laws of physics are the same for all observers. However, attempts to unify our two most fundamental descriptions of nature, the Standard Model of particle physics and general relativity, into a single all-encompassing theory suggest that Lorentz invariance might be broken slightly. The research of Professor Mewes focuses on violations of Lorentz invariance, with the goal of extending the theoretical description of Lorentz-invariance violations and identifying experimental signatures in an effort to aid the search for new physics. This research advances the national interest by promoting science in one of its most fundamental directions: the discovery and understanding of new physical laws. Parts of this work will be accessible to undergraduates and will provide research opportunities for physics majors at Cal Poly, a primarily undergraduate institution. Students involved in this research will also gain valuable exposure to theoretical physics.In more technical terms, this project seeks to fill several major gaps in the theoretical framework known as the Standard-Model-Extension (SME). The SME provides a general description of Lorentz violation in any system. The generality of this approach implies that the full SME contains an infinite number of violations. To keep the problem tractable, early studies focused on the minimal SME, which restricts attention to operators of renormalizable mass dimension. However, there are reasons to suspect that nonrenormalizable violations may dominate. This project will extend our understanding of Lorentz-invariance violations by completing the extension for linearized gravity and by exploring various consequences in that sector. It also seeks to fill gaps in the Lorentz-violating extension of quantum electrodynamics by classifying violations in fermion-photon interactions.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.

这个RUI奖资助了加州理工州立大学的Matthew Mewes教授的研究活动。洛伦兹不变性被认为是自然界的精确对称。它是狭义相对论的基础，意味着物理定律对所有观察者都是一样的。 然而，试图将我们对自然的两个最基本的描述，粒子物理学的标准模型和广义相对论，统一为一个单一的包罗万象的理论表明，洛伦兹不变性可能会被稍微打破。 Mewes教授的研究重点是违反洛伦兹不变性，其目标是扩展洛伦兹不变性违反的理论描述，并确定实验签名，以帮助寻找新的物理学。这项研究通过促进科学最基本的方向之一：发现和理解新的物理定律来促进国家利益。 这项工作的一部分将提供给本科生，并将提供在加州理工学院，主要是本科院校的物理专业的研究机会。 参与这项研究的学生还将获得宝贵的理论物理知识。在更多的技术术语中，该项目旨在填补被称为标准模型扩展（SME）的理论框架中的几个主要空白。SME提供了任何系统中洛伦兹破坏的一般描述。这种方法的一般性意味着完整的SME包含无限数量的违规。为了使问题易于处理，早期的研究集中在最小SME上，这限制了对可重正化质量维算子的关注。 然而，有理由怀疑，不可重正化的违规行为可能占主导地位。这个项目将通过完成线性引力的扩展和探索该领域的各种后果来扩展我们对洛伦兹不变性违反的理解。该奖项旨在通过对费米子-光子相互作用中的违规行为进行分类，填补量子电动力学中洛伦兹违规扩展的空白。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值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

Non-Minimal Lorentz Violation in Macroscopic Matter

宏观物质中的非最小洛伦兹破坏

• DOI: 10.3390/sym12122026
• 发表时间: 2020
• 期刊: Symmetry
• 作者: Mewes, Matthew

Spherical-harmonic tensors

球谐张量

• DOI: 10.1103/physrevresearch.2.043061
• 发表时间: 2020
• 期刊: Physical Review Research
• 影响因子: 4.2
• 作者: Ledesma, Francisco Gonzalez;Mewes, Matthew
• 通讯作者: Mewes, Matthew

Future CMB constraints on cosmic birefringence and implications for fundamental physics

• DOI: 10.1103/physrevd.100.023507
• 发表时间: 2019-04
• 期刊: Physical Review D
• 影响因子: 5
• 作者: L. Pogosian;M. Shimon;M. Mewes;B. Keating

Signals for Lorentz violation in gravitational waves

• DOI: 10.1103/physrevd.99.104062
• 发表时间: 2019-05
• 期刊: Physical Review D
• 影响因子: 5
• 作者: M. Mewes