Collaborative Research: Taming the scale explosion in nuclear structure calculations

合作研究：抑制核结构计算中的规模爆炸

• 批准号: 0904809
• 负责人: Umit Catalyurek
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0904809&HistoricalAwards=false
• 关键词: Collaborative; Research; Taming; scale; explosion

Solving for the structure and reactions of the atomic nucleusThe discovery of nuclear fission revealed the tremendous amount of energy that can be released when the strong bonds between the neutrons and protons forming atomic nuclei are broken. Ever since that history-making discovery, theoretical nuclear physicists have sought a detailed explanation of the properties of the atomic nucleus based on knowledge of the strong force between these constituents. When this goal is achieved, we will be able to predict reactions that take place in extreme environments ? from the interiors of stars to the core of nuclear reactors. Improving our knowledge of nuclear structure and reactions will help us economically and safely harness nuclear phenomena in support of a broad spectrum of humanitarian needs. Future nuclear science and technology advances promise a growing line of medical, industrial and energy applications. Nuclear medicine and nuclear magnetic resonance imaging provide just two prominent medical applications that rely on elementary properties of atomic nuclei.This project aims to expand dramatically the reach as well as the impact of nuclear theory by harnessing the vast computational power of NSF's leadership class computer facilities under construction. The goal is to develop and implement a symmetry-based extension of the ab initio no-core shell model. By effectively ferreting out important interactions at the fundamental quantum level, we can achieve accurate predictions of nuclear properties based upon a deep understanding of the underlying forces. All participating particles are treated on the same footing within a matrix (?shell model?) picture of the quantum many-particle system, the nucleus. We aim to predict the structure and reactions of light-nuclei important for stellar processes and, possibly, for fusion reactors within five years. As part of this PetaApps grant, future leaders ? primarily graduate students and postdocs, will be supported to conduct this research under the guidance of senior investigators.

解决原子核的结构和反应核裂变的发现揭示了当形成原子核的中子和质子之间的强键断裂时可以释放出巨大的能量。自从那次历史性的发现以来，理论核物理学家一直在寻求对原子核性质的详细解释，其基础是这些成分之间的强作用力。 当这一目标实现时，我们将能够预测极端环境中发生的反应。从恒星内部到核反应堆的核心 提高我们对核结构和反应的认识将有助于我们经济和安全地利用核现象，以支持广泛的人道主义需求。 未来核科学和技术的进步预示着医疗、工业和能源应用的范围将不断扩大。核医学和核磁共振成像提供了两个突出的医学应用，依赖于原子核的基本性质。该项目旨在通过利用正在建设的NSF领导级计算机设施的巨大计算能力，大幅扩展核理论的范围和影响。 我们的目标是开发和实现一个从头算无核壳模型的扩展。 通过在基本量子水平上有效地找出重要的相互作用，我们可以在对潜在力的深刻理解的基础上实现对核性质的准确预测。所有参与的粒子都在同一个矩阵（？）壳模型？）量子多粒子系统的图像，原子核。我们的目标是预测的结构和反应的轻核重要的恒星过程，并可能在五年内聚变反应堆。作为PetaApps资助的一部分，未来的领导者？主要是研究生和博士后，将得到支持，在高级研究人员的指导下进行这项研究。