Theoretical Studies at the Interface of Atomic Physics and Precision Measurements

原子物理与精密测量界面的理论研究

• 批准号: 1912465
• 负责人: Andrei Derevianko
• 金额: $ 41.76万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 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 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1912465&HistoricalAwards=false
• 关键词: Theoretical; Studies; Interface; Atomic; Physics

Cosmological observations indicate that modern physics can explain only a small fraction (about 5%) of the microscopic composition of the Universe. Exacting the nature of the remaining 95%, dark matter and dark energy, is one of the grandest challenges in modern physics. This project aims at finding inroads to solving this outstanding problem through interpretation, design, and characterization of precision measurement experiments carried out in laboratory settings. Such experiments, while being relatively inexpensive, have a tantalizing discovery potential. Any discovery in this area would profoundly help in painting a more complete picture of Nature's inner workings. Historically, such advances eventually lead to technological advances. The project will train a young theoretical/computational physicist, contributing to the high-technology workforce development. The project will be carried out in Nevada, a state historically underrepresented in the scientific enterprise, thus contributing to diversity. A signal of new physics may come as a small perturbation on top of a conventional Standard Model physics background; thereby an interpretation of experimental measurements requires input from theoretical calculations characterizing such backgrounds. A major part of this project deals with high-precision calculations of atomic properties required for improved interpretation of the violation of mirror symmetry in atoms. Together with previous experimental results, the calculations will either reveal new physics or place powerful constraints on the dark sector. Another part of the project will estimate fundamental physics limitations on the accuracies attainable with atomic timekeeping and also improve the interpretation of searches for ultralight dark matter with precision instruments.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.

宇宙学观察表明，现代物理学只能解释宇宙微观构成的一小部分(约5%)。研究剩下的95%暗物质和暗能量的性质，是现代物理学面临的最大挑战之一。该项目旨在通过在实验室环境中进行的精密测量实验的解释、设计和表征来找到解决这一突出问题的途径。这类实验虽然相对便宜，但具有诱人的发现潜力。在这一领域的任何发现都将深刻地帮助我们更全面地了解自然界的内部运作。从历史上看，这样的进步最终会带来技术进步。该项目将培养一名年轻的理论/计算物理学家，为高科技劳动力的发展做出贡献。该项目将在内华达州进行，该州历史上在科学事业中的代表性不足，因此有助于多样性。新物理的信号可能是传统标准模型物理背景上的一个小扰动；因此，对实验测量的解释需要从表征这种背景的理论计算中获得输入。该项目的一个主要部分涉及对原子性质的高精度计算，以改进对原子中镜面对称性破坏的解释。结合之前的实验结果，这些计算要么揭示了新的物理原理，要么对暗部门施加了强有力的限制。该项目的另一部分将评估原子计时所能达到的精确度的基本物理限制，并改进对使用精密仪器搜索超轻暗物质的解释。这一奖项反映了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

Probing multiple electric-dipole-forbidden optical transitions in highly charged nickel ions

• DOI: 10.1103/physreva.103.022804
• 发表时间: 2021-01
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Shiyong Liang;Tingxian Zhang;H. Guan;Qi Lu;J. Xiao;Shao-long Chen;Yao Huang;Yong-Hui Zhang;Cheng-bin Li;Y. Zou;Jiguang Li;Zong-Chao Yan;A. Derevianko;M. Zhan;T. Shi;K. Gao

Fundamental physics with a state-of-the-art optical clock in space

• DOI: 10.1088/2058-9565/ac7df9
• 发表时间: 2022-10-01
• 期刊: QUANTUM SCIENCE AND TECHNOLOGY
• 影响因子: 6.7
• 作者: Derevianko, Andrei;Gibble, Kurt;Yu, Nan
• 通讯作者: Yu, Nan

Quantum sensor networks as exotic field telescopes for multi-messenger astronomy

• DOI: 10.1038/s41550-020-01242-7
• 发表时间: 2020-11-02
• 期刊: NATURE ASTRONOMY
• 影响因子: 14.1
• 作者: Dailey, Conner;Bradley, Colin;Derevianko, Andrei
• 通讯作者: Derevianko, Andrei

Precision theoretical determination of electric-dipole matrix elements in atomic cesium

原子铯中电偶极子基体元素的精密理论测定

• DOI: 10.1103/physreva.107.042809
• 发表时间: 2023
• 期刊: Physical Review A
• 影响因子: 2.9
• 作者: Tran Tan, H. B.;Derevianko, A.
• 通讯作者: Derevianko, A.

Atomic Physics Studies at the Gamma Factory at CERN

• DOI: 10.1002/andp.202000204
• 发表时间: 2020-03
• 期刊: Annalen der Physik
• 影响因子: 2.4
• 作者: D. Budker;José R. Crespo López-Urrutia;A. Derevianko;V. Flambaum;M. Krasny;A. Petrenko;S. Pustelny;A. Surzhykov;V. Yerokhin;M. Zolotorev