Quantum Gravity on the Inside

内部的量子引力

• 批准号: 2013873
• 负责人: David Kaplan
• 金额: $ 3.5万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2021-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2013873&HistoricalAwards=false
• 关键词: Quantum; Gravity; Inside

This award funds the research activities of Professor Jared Kaplan at Johns Hopkins University. For many years, physicists have been searching for a way to combine our understanding of the gravitational force, which is based on Einstein's theory of general relativity, with quantum mechanics. However, such a fusion gives rise to the so-called Black-Hole Information Paradox, which seems to challenge one of our most fundamental physical principles, namely the principle of locality, which states that objects can only interact if they are near each other. But just as Heisenberg's uncertainty principle was only a harbinger of all manner of quantum weirdness, the information paradox may presage other subtle violations of locality. The goal of Professor Kaplan's research is to study some of these exotic phenomena in order to determine if the laws of physics, and in particular the principle of locality, can be maintained near black holes. As a result, this research advances the national interest by promoting the progress of science towards the discovery and understanding of fundamental physical principles. This research project will also have broader impacts, as Professor Kaplan will involve graduate students in his research and plans to disseminate the results of this research through public talks. On a more technical level, Professor Kaplan aims to study locality in quantum gravity using the AdS/CFT correspondence. In particular, he will focus on the following questions: (1) How can the AdS/CFT correspondence make predictions for physical bulk observers beyond perturbation theory? (2) Are previously-discovered non-perturbative locality violations in (2+1)-dimensional AdS space robust and physical? (3) Can the impossibility of screening the gravitational field in AdS/CFT be demonstrated? Professor Kaplan will use the AdS/CFT correspondence, the conformal bootstrap, and Virasoro symmetry to perform explicit calculations that will help to address these questions. Professor Kaplan will also endeavor to interpret technical developments in CFT in terms of quantum gravity in AdS in order to shed light on the mysteries of black-hole evaporation and the limitations on locality in quantum gravity. Finally, Professor Kaplan will work to extend his results to higher dimensions and to more physically relevant spacetimes, including quantum gravitating cosmologies.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.

该奖项为约翰·霍普金斯大学（Johns Hopkins University）的Jared Kaplan教授提供了研究活动。 多年来，物理学家一直在寻找一种方法来结合我们对引力力的理解，这是基于爱因斯坦的一般相对论理论和量子力学的。 但是，这样的融合产生了所谓的黑洞信息悖论，这似乎挑战了我们最基本的物理原理之一，即当地原理，该原则指出，只有在彼此靠近的情况下，只有对象才能相互作用。 但是，正如海森伯格的不确定性原则只是各种量子怪异的预兆一样，信息悖论可能会预示其他微妙的侵犯区域。 卡普兰教授的研究的目的是研究其中一些异国情调现象，以确定物理定律，尤其是当地原则是否可以维持在黑洞附近。 结果，这项研究通过促进科学的进步来发现和理解基本物理原理，从而推动了国家利益。 该研究项目也将产生更广泛的影响，因为Kaplan教授将涉及研究生的研究，并计划通过公开谈判来传播这项研究的结果。 在技​​术水平上，卡普兰教授旨在使用ADS/CFT对应关系研究量子重力的位置。 特别是，他将重点关注以下问题：（1）广告/CFT对应关系如何对超出扰动理论的物理散装观察者进行预测？ （2）先前发现的（2+1）二维广告的非扰动局部性违反了空间和物理吗？ （3）是否不可能证明在AD/CFT中筛选重力场？ Kaplan教授将使用ADS/CFT对应关系，共形性自举和Virasoro对称性来执行明确的计算，这将有助于解决这些问题。 Kaplan教授还将努力从AD中的量子重力来解释CFT的技术发展，以阐明黑洞蒸发的奥秘以及量子重力的局部性局限性。 最后，卡普兰教授将努力将其结果扩展到更高的维度和更相关的空间，包括量子吸引人的宇宙学。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的智力优点和更广泛影响的审查标准通过评估来进行评估的。

项目成果

Gravitational wave constraints on the observable inflation

• DOI: 10.1088/1475-7516/2021/01/053
• 发表时间: 2020-04
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Erwin H. Tanin;Tommi Tenkanen

Causality constraints in large N QCD coupled to gravity

大 N QCD 与重力耦合的因果约束

• DOI: 10.1103/physrevd.104.l061901
• 发表时间: 2021
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Kaplan, Jared;Kundu, Sandipan
• 通讯作者: Kundu, Sandipan

Dirac neutrinos and N eff . Part II. The freeze-in case

狄拉克中微子和 N eff 。

• DOI: 10.1088/1475-7516/2021/03/082
• 发表时间: 2021
• 期刊: Journal of Cosmology and Astroparticle Physics
• 影响因子: 6.4
• 作者: Luo, Xuheng;Rodejohann, Werner;Xu, Xun-Jie
• 通讯作者: Xu, Xun-Jie

Clockwork mechanism to remove superradiance limits

消除超辐射限制的发条机制

• DOI: 10.1103/physrevd.102.055015
• 发表时间: 2020
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Mathur, Anubhav;Rajendran, Surjeet;Tanin, Erwin H.
• 通讯作者: Tanin, Erwin H.

Ultraheavy dark matter search with electron microscopy of geological quartz

• DOI: 10.1103/physrevd.104.015041
• 发表时间: 2021-05
• 作者: R. Ebadi;A. Mathur;Erwin H. Tanin;N. Tailby;M. C. Marshall;A. Ravi;R. Trubko;R. Fu;D. Phillips