Nuclear Structure, Nuclear Astrophysics and Mesoscopic Physics

核结构、核天体物理学和介观物理学

• 批准号: 0758099
• 负责人: B. Alex Brown
• 金额: --
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-05-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0758099&HistoricalAwards=false
• 关键词: Nuclear; Structure; Astrophysics; Mesoscopic; Physics

Our proposed research relates to broad questions in science including: What are the limits of nuclear stability? How did the chemical evolution of the Universe proceed? What are the ways of self-organization in interacting many-body systems? How do the nuclear properties emerge from the underlying nucleon-nucleon interactions? How does order coexist with chaos and complexity in quantum mesoscopic systems? The suggested program is expected to have appreciable impact on developments in the field of nuclear theory, nuclear astrophysics and the general field of mesoscopic physics. Many of the projects are connected to the experimental programs at the National Superconducting Cyclotron Laboratory (NSCL) and other laboratories. Projects are also closely coupled with the Joint Institute for Nuclear Astrophysics (JINA).Research topics include: (i) development of new analytical and computational tools for the description of nuclear structure, especially for the nuclei far from stability and for heavy nuclei; (ii) detailed consideration of specific nuclear phenomena and nuclear processes that shed light on the new features encountered with experimental advances into virgin territory of unstable nuclei; (iii) calculations and modeling of structural and dynamical aspects of nuclear processes of astrophysical interest; (iv) development of the unified description of structure and reactions in open and marginally stable mesoscopic systems, including nuclear reactions, conductance fluctuations and quantum transport; (iv) studies of the nucleus as a mesoscopic system, including many-body quantum chaos and its coexistence with collective and regular features.

我们提出的研究涉及广泛的科学问题，包括：核稳定性的极限是什么？ 宇宙的化学演化是如何进行的？ 多体系统交互中的自组织方式有哪些？ 核特性是如何从潜在的核子-核子相互作用中显现出来的？ 量子介观系统中秩序如何与混沌和复杂性共存？ 预计该计划将对核理论、核天体物理学和介观物理学一般领域的发展产生显着影响。许多项目都与国家超导回旋加速器实验室（NSCL）和其他实验室的实验项目相关。项目还与核天体物理联合研究所（JINA）密切合作。研究主题包括：（i）开发新的分析和计算工具来描述核结构，特别是远离稳定的核和重核； ㈡ 详细考虑具体的核现象和核过程，揭示不稳定核处女地实验进展所遇到的新特征； (iii) 具有天体物理学意义的核过程的结构和动力学方面的计算和建模； (iv) 发展开放和边缘稳定介观系统结构和反应的统一描述，包括核反应、电导涨落和量子输运； (iv) 将原子核作为介观系统的研究，包括多体量子混沌及其与集体和规则特征的共存。