Coherence Effects: A Sensitive Tool to Study the Few-Body Dynamics in Simple Atomic Systems

相干效应:研究简单原子系统中少体动力学的敏感工具

基本信息

项目摘要

General audience abstract:Understanding the laws of Nature on a fundamental level is the most important prerequisite for technological development. To this end, two major topics have to be addressed: a) a thorough understanding of the forces acting in Nature needs to be obtained. It is well established that, on an elementary particle level, the mediation of these forces can only occur between two particles at a time. This directly leads to the second topic: b) the description of the evolution of systems consisting of three or more particles under the influence of these pairwise acting forces. This is known as the Few-Body Problem (FBP) in physics and it remains one of the most fundamentally important, and yet unsolved problems in physics. The research supported by this grant aims to advance the understanding of the FBP by studying collision processes between ions and simple atoms or molecules. Such collisions represent systems consisting of a relatively small particle number (typically 3 to 5 particles), which are nevertheless sufficiently complex to be strongly affected by the unsolved FBP. This research will involve several graduate and undergraduate students and prepare them for the scientific and technological needs of society.Technical audience abstract:To address the Few-Body Problem (FBP), the research team will perform kinematically complete experiments on several atomic fragmentation processes. Their interest is focused on two aspects of the few-body dynamics: the importance of higher-order contributions and the role of projectile coherence effects. Until recently, theory focused on perturbative methods in describing such processes. In these models understanding the FBP means accurately describing the contributions of higher-order versus first-order contributions. Their experiments are designed to sensitively test perturbative models and to determine the limitations of such approaches. Regarding the second aspect, prior to recent work by this group and others, theory had assumed that the incoming projectiles are always fully coherent. In studies over the last 8 years the researchers have demonstrated that for heavy particles this is not always a realistic assumption because of the particles' very small deBroglie wavelengths. In the research supported by this grant the research team will use coherence effects as a sensitive tool to study interference effects in greater detail than was possible previously. Interference structures, in turn, usually contain rich information on the few-body dynamics underlying the collision process.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.
摘要:从根本上理解自然规律是技术发展的最重要前提。 为此,必须解决两个主要问题:a)需要彻底了解自然界中的作用力。 众所周知,在基本粒子的水平上,这些力的中介只能同时发生在两个粒子之间。 这直接导致了第二个主题:B)描述由三个或更多粒子组成的系统在这些成对作用力的影响下的演化。 这被称为物理学中的少体问题(FBP),它仍然是物理学中最基本的重要问题之一,但尚未解决。 这项研究旨在通过研究离子与简单原子或分子之间的碰撞过程来促进对FBP的理解。 这样的碰撞代表由相对小的粒子数(通常为3至5个粒子)组成的系统,然而这些系统足够复杂以受到未解决的FBP的强烈影响。 该研究将涉及一些研究生和本科生,并为社会的科学和技术需求做好准备。技术观众摘要:为了解决少体问题(FBP),研究小组将对几个原子碎裂过程进行运动学上完整的实验。 他们的兴趣集中在两个方面的少体动力学:高阶贡献的重要性和弹丸相干效应的作用。 直到最近,理论上的重点是微扰方法来描述这样的过程。 在这些模型中,理解FBP意味着准确地描述高阶贡献与一阶贡献的贡献。 他们的实验旨在灵敏地测试微扰模型并确定此类方法的局限性。 关于第二个方面,在这个小组和其他人最近的工作之前,理论假设入射的射弹总是完全相干的。 在过去8年的研究中,研究人员已经证明,对于重粒子来说,这并不总是一个现实的假设,因为粒子的德布罗意波长非常小。 在这项资助支持的研究中,研究小组将使用相干效应作为一种敏感的工具,比以前更详细地研究干扰效应。 干涉结构,反过来,通常包含丰富的信息少体动力学的碰撞过程的基础。这个奖项反映了NSF的法定使命,并已被认为是值得的支持,通过评估使用基金会的知识价值和更广泛的影响审查标准。

项目成果

期刊论文数量(6)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Quantum interference of K capture in energetic Ge31+(1s)−Kr collisions
  • DOI:
    10.1103/physreva.101.042701
  • 发表时间:
    2020-04
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    R. Schuch;M. Schulz;Y. Kozhedub;V. Shabaev;I. Tupitsyn;G. Plunien;P. Mokler;H. Schmidt-Böcking
  • 通讯作者:
    R. Schuch;M. Schulz;Y. Kozhedub;V. Shabaev;I. Tupitsyn;G. Plunien;P. Mokler;H. Schmidt-Böcking
Electron-impact ionization and ionic fragmentation of O 2 from threshold to 120 eV energy range
O 2 从阈值到 120 eV 能量范围的电子轰击电离和离子碎裂
  • DOI:
    10.1142/s0217979221501046
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    1.7
  • 作者:
    Lomsadze, R. A.;Gochitashvili, M. R.;Kezerashvili, R. Ya.;Schulz, M.
  • 通讯作者:
    Schulz, M.
Fully differential investigation of two-center interference in dissociative capture in p+H2 collisions
p H2 碰撞解离捕获中双中心干扰的全微分研究
  • DOI:
    10.1103/physreva.105.032805
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Bastola, S.;Dhital, M.;Lamichhane, B.;Silvus, A.;Lomsadze, R.;Davis, J.;Hasan, A.;Igarashi, A.;Schulz, M.
  • 通讯作者:
    Schulz, M.
Projectile Coherence Effects in Simple Atomic Systems
简单原子系统中的射弹相干效应
  • DOI:
    10.1088/1742-6596/1412/6/062007
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Schulz, M;Hasan, A;Lamichhane, B;Arthanayaka, T;Dhital, M;Bastola, S;Nagy, L;Borbély, S;Járai-Szabó, F
  • 通讯作者:
    Járai-Szabó, F
Doubly differential ionization in proton-helium collisions at intermediate energies: Energy distribution of emitted electrons as a function of scattered-projectile angle
中间能量质子-氦碰撞中的双微分电离:发射电子的能量分布作为散射射弹角度的函数
  • DOI:
    10.1103/physreva.108.022803
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    2.9
  • 作者:
    Spicer, K. H.;Plowman, C. T.;Schulz, M.;Kadyrov, A. S.
  • 通讯作者:
    Kadyrov, A. S.
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

Michael Schulz其他文献

Polarized neutron radiography with a periscope
使用潜望镜进行偏振中子射线照相
  • DOI:
    10.1088/1742-6596/200/11/112009
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Michael Schulz;Andreas Neubauer;Martin Mühlbauer;Elbio Calzada;Burkhard Schillinger;Christian Pfleiderer;Peter Böni
  • 通讯作者:
    Peter Böni
Self-Service Business Intelligence
Dynamics of the fluctuation site-bond algorithm
  • DOI:
    10.1016/j.physleta.2006.03.014
  • 发表时间:
    2006-07-17
  • 期刊:
  • 影响因子:
  • 作者:
    Beatrix M. Schulz;Michael Schulz
  • 通讯作者:
    Michael Schulz
Option pricing theory for financial assets with memory *
具有记忆功能的金融资产的期权定价理论*
  • DOI:
    10.1002/andp.200852002-309
  • 发表时间:
    2008
  • 期刊:
  • 影响因子:
    2.4
  • 作者:
    Michael Schulz
  • 通讯作者:
    Michael Schulz
Cognitive heuristics in multitasking performance
多任务处理表现中的认知启发法
  • DOI:
  • 发表时间:
    2006
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Juergen Kiefer;Juergen Kiefer;Michael Schulz;Michael Schulz;L. Urbas
  • 通讯作者:
    L. Urbas

Michael Schulz的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('Michael Schulz', 18)}}的其他基金

CAREER: Novel Approaches to Hyperbranched Polymers
职业:超支化聚合物的新方法
  • 批准号:
    2237487
  • 财政年份:
    2023
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
Few-Body Dynamics in Simple Atomic Systems
简单原子系统中的少体动力学
  • 批准号:
    1703109
  • 财政年份:
    2017
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
Coherence Effects and Few-Body Dynamics in Atomic Fragmentation Processes
原子碎片过程中的相干效应和少体动力学
  • 批准号:
    1401586
  • 财政年份:
    2014
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
NSF East Asia and Pacific Summer Institute (EAPSI) for FY 2013 in Japan
2013 财年 NSF 东亚及太平洋夏季学院 (EAPSI) 在日本举行
  • 批准号:
    1310869
  • 财政年份:
    2013
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Fellowship Award
Many-Body Collision Dynamics Involving Particles and Antiparticles
涉及粒子和反粒子的多体碰撞动力学
  • 批准号:
    0969299
  • 财政年份:
    2010
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Standard Grant
String compactification, generalized geometry, and 4D physics
弦紧化、广义几何和 4D 物理
  • 批准号:
    0912219
  • 财政年份:
    2009
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Standard Grant
Few-Body Dynamics of Atomic Reactions Induced by Particles and Anti-Particles
粒子和反粒子引起的原子反应的少体动力学
  • 批准号:
    0652519
  • 财政年份:
    2007
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
Collaborative Research: Self-Consistent Ring-Current Particle Transport Simulations
合作研究:自洽环流粒子输运模拟
  • 批准号:
    0548915
  • 财政年份:
    2006
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
Few-Body Dynamics of Ionization Processes Induced by Particles and Anti-Particles
粒子和反粒子引起的电离过程的少体动力学
  • 批准号:
    0353532
  • 财政年份:
    2004
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Continuing Grant
U.S. Germany Cooperative Research: Three-Dimensional Imaging of Ionizing Collisions
美德合作研究:电离碰撞三维成像
  • 批准号:
    0224943
  • 财政年份:
    2002
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Standard Grant

相似国自然基金

Dynamic Credit Rating with Feedback Effects
  • 批准号:
  • 批准年份:
    2024
  • 资助金额:
    万元
  • 项目类别:
    外国学者研究基金项目
水环境中新兴污染物类抗生素效应(Like-Antibiotic Effects,L-AE)作用机制研究
  • 批准号:
    21477024
  • 批准年份:
    2014
  • 资助金额:
    86.0 万元
  • 项目类别:
    面上项目

相似海外基金

Egalitarian Equivalent Treatment Effects: The Econometrics of Inequality-Sensitive Treatment Effects Estimation
平等主义等效治疗效果:不平等敏感治疗效果估计的计量经济学
  • 批准号:
    2313969
  • 财政年份:
    2023
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Standard Grant
Development of a highly sensitive technique for evaluating the potential risk and health-prompting effects of food pairing
开发一种高度敏感的技术来评估食物搭配的潜在风险和健康促进作用
  • 批准号:
    23H02163
  • 财政年份:
    2023
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Time-Sensitive Research to Assess the Effects of Reproductive Health Policy on the Health Outcomes of People with Chronic Diseases
评估生殖健康政策对慢性病患者健康结果影响的时间敏感研究
  • 批准号:
    10768227
  • 财政年份:
    2023
  • 资助金额:
    $ 38.78万
  • 项目类别:
Effects of chronic exercise on high fructose-induced organ damages in Dahl salt-sensitive rats
长期运动对高果糖所致达尔盐敏感大鼠器官损伤的影响
  • 批准号:
    22K17656
  • 财政年份:
    2022
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Novel MRI Acquisition and Analysis Methods for Sensitive Detection of Dementia Treatment Side Effects
用于灵敏检测痴呆症治疗副作用的新型 MRI 采集和分析方法
  • 批准号:
    2719591
  • 财政年份:
    2022
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Studentship
Study of the quantum effects of para-hydrogen with high-sensitive coherent double resonance spectroscopy and its application to interstellar chemistry
高灵敏相干双共振光谱研究仲氢量子效应及其在星际化学中的应用
  • 批准号:
    22K05017
  • 财政年份:
    2022
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Competing Rates in Mixing Sensitive Processes: design fundamentals for meso-scale and transient effects
混合敏感过程中的竞争速率:中观尺度和瞬态效应的设计基础
  • 批准号:
    RGPIN-2018-04942
  • 财政年份:
    2022
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Discovery Grants Program - Individual
Competing Rates in Mixing Sensitive Processes: design fundamentals for meso-scale and transient effects
混合敏感过程中的竞争速率:中观尺度和瞬态效应的设计基础
  • 批准号:
    RGPIN-2018-04942
  • 财政年份:
    2021
  • 资助金额:
    $ 38.78万
  • 项目类别:
    Discovery Grants Program - Individual
Mitochondria-mediated effects and therapeutic potential of Atrial Natriuretic Peptide in salt-sensitive hypertension
心房钠尿肽在盐敏感性高血压中的线粒体介导作用和治疗潜力
  • 批准号:
    10676800
  • 财政年份:
    2020
  • 资助金额:
    $ 38.78万
  • 项目类别:
Mitochondria-mediated effects and therapeutic potential of Atrial Natriuretic Peptide in salt-sensitive hypertension
心房钠尿肽在盐敏感性高血压中的线粒体介导作用和治疗潜力
  • 批准号:
    10442162
  • 财政年份:
    2020
  • 资助金额:
    $ 38.78万
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了