Quantum Field Theory, Atomic Physics and General Relativity
量子场论、原子物理学和广义相对论
基本信息
- 批准号:1710856
- 负责人:
- 金额:$ 22.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2017
- 资助国家:美国
- 起止时间:2017-08-01 至 2021-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project will attempt to combine relativistic quantum theory of nanoscale phenomena with the concepts of general relativity, a theory primarily designed to cover astrophysical phenomena. One of the aims is to study the consequences for relativistic geodesy, where one uses tiny frequency shifts in atomic transitions, as a function of the altitude of an atomic clock, in order to map out the Earth's surface. To accomplish this task, modern computer algorithms will be developed in concert with an improved understanding of quantum field theories to advance our quantitative understanding of quantum mechanical bound states of atoms. Only by combining quantum field theory with the notion of curved spacetime can our current understanding of the very large be reconciled with our current understanding of the very small. This project will continue and extend the PI's explorations of this synthesis of two world views. The supervision of graduate students and the completion of an extensive monograph on the subject matter will complement the research program.The research planned for this project will cover theoretical physics research in various related fields, including extensions of the Dirac equation to curved space-time, pseudo-Hermitian extensions of Dirac theory, the use of highly powerful parallel computer algorithms for the calculation of atomic properties. Existing discrepancies between theory and experiment (the so-called muonic hydrogen/proton radius puzzle and the enhancement of internal pair creation in the decay of 8Be) will be analyzed theoretically, and higher-order corrections will be studied. The Dirac formalism will be augmented by a coupling of the bispinor to curved space-time, with special emphasis on consequences for relativistic geodesy. Finally, investigations on atom-surface contact interactions and non-contact friction effects will complement the research program.
该项目将尝试将纳米级现象的相对论量子理论与广义相对论的概念结合起来,广义相对论主要用于涵盖天体物理现象。其中一个目标是研究相对论大地测量学的结果,在相对论大地测量学中,人们利用原子跃迁中的微小频率位移,作为原子钟高度的函数,来绘制地球表面的地图。为了完成这一任务,现代计算机算法将随着对量子场论的理解的提高而发展,以推进我们对原子量子力学束缚态的定量理解。只有将量子场论与弯曲时空的概念结合起来,我们目前对非常大的理解才能与我们目前对非常小的理解相协调。这个项目将继续并扩展PI对两种世界观综合的探索。对研究生的监督和对该主题的广泛专著的完成将补充研究计划。该项目的研究计划将涵盖各个相关领域的理论物理研究,包括狄拉克方程对弯曲时空的扩展,狄拉克理论的伪厄米扩展,使用强大的并行计算机算法计算原子性质。理论和实验之间存在的差异(所谓的介子氢/质子半径难题和8Be衰变中内部对产生的增强)将从理论上进行分析,并研究高阶修正。狄拉克的形式主义将通过双态与弯曲时空的耦合得到加强,并特别强调相对论测地线的结果。最后,对原子表面接触相互作用和非接触摩擦效应的研究将补充研究计划。
项目成果
期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Antimatter Free-Fall Experiments and Charge Asymmetry
反物质自由落体实验和电荷不对称
- DOI:10.3390/sym13071192
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Jentschura, Ulrich David
- 通讯作者:Jentschura, Ulrich David
Squeezing the Parameter Space for Lorentz Violation in the Neutrino Sector with Additional Decay Channels
使用附加衰变通道压缩中微子扇区洛伦兹破坏的参数空间
- DOI:10.3390/particles3030041
- 发表时间:2020
- 期刊:
- 影响因子:1.4
- 作者:Jentschura, Ulrich D.
- 通讯作者:Jentschura, Ulrich D.
Two-loop corrections to the large-order behavior of correlation functions in the one-dimensional N -vector model
一维 N 向量模型中相关函数大阶行为的二环修正
- DOI:10.1103/physrevd.101.125001
- 发表时间:2020
- 期刊:
- 影响因子:5
- 作者:Giorgini, L. T.;Jentschura, U. D.;Malatesta, E. M.;Parisi, G.;Rizzo, T.;Zinn-Justin, J.
- 通讯作者:Zinn-Justin, J.
Long-range interactions of hydrogen atoms in excited states. III. nS−1S interactions for n≥3
激发态氢原子的长程相互作用。
- DOI:10.1103/physreva.96.032702
- 发表时间:2017
- 期刊:
- 影响因子:2.9
- 作者:Adhikari, C. M.;Debierre, V.;Jentschura, U. D.
- 通讯作者:Jentschura, U. D.
Pressure shifts in high-precision hydrogen spectroscopy: II. Impact approximation and Monte-Carlo simulations
高精度氢谱中的压力变化:II 冲击近似和蒙特卡罗模拟
- DOI:10.1088/1361-6455/ab08e1-1
- 发表时间:2019
- 期刊:
- 影响因子:0
- 作者:A. Matveev;N. Kolachevsky;C. M. Adhikari;U. D. Jentschura
- 通讯作者:U. D. Jentschura
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Ulrich Jentschura其他文献
Ulrich Jentschura的其他文献
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{{ truncateString('Ulrich Jentschura', 18)}}的其他基金
PM: Precision Low-Energy Quantum Electroynamic Theory and Fundamental Processes
PM:精密低能量子电动力学理论和基本过程
- 批准号:
2110294 - 财政年份:2021
- 资助金额:
$ 22.5万 - 项目类别:
Continuing Grant
Quantum Vacuum and Atoms: Exploring QED and Atom-Surface Interactions with the Help of Advanced Numerical Methods
量子真空和原子:借助先进数值方法探索 QED 和原子表面相互作用
- 批准号:
1403973 - 财政年份:2014
- 资助金额:
$ 22.5万 - 项目类别:
Continuing Grant
Advanced Computational Physics in Atomic and Laser Science
原子和激光科学中的高级计算物理
- 批准号:
1068547 - 财政年份:2011
- 资助金额:
$ 22.5万 - 项目类别:
Continuing Grant
Quantum Electrodynamics in Fundamental Physics and Applications
基础物理及应用中的量子电动力学
- 批准号:
0855454 - 财政年份:2009
- 资助金额:
$ 22.5万 - 项目类别:
Standard Grant
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