Microscopic Theory of Quantum Fluids and Nuclear Systems

量子流体和核系统的微观理论

• 批准号: 9002863
• 负责人: John Clark
• 金额: $ 24.15万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9002863&HistoricalAwards=false
• 关键词: Microscopic; Theory; Quantum; Fluids; Nuclear

The proposed research will continue a program aimed at accurate theoretical prediction of the properties of strongly-interacting quantum many-body systems, at the microscopic level defined by the basic forces between the constituents. The systems of interest include superfluid liquid helium-four unpolarized and polarized liquid helium-three, spin-aligned bulk atomic hydrogen and deuterium, nuclear matter, neutron matter, nuclei, and strongly-coupled electronic systems. Both static and dynamic properties of selected examples, notably the helium liquids, nuclei, and nuclear matter, will be calculated. Special emphasis is placed on predictions which can be compared with the results of current experiments designed to probe the correlation structure of many-body systems. Such experiments include deep- inelastic neutron scattering from liquid helium (e.g. at the Argonne IPNS facility) and inclusive electron scattering from nuclei at GeV energies (e.g. at CEBAF). The basic goal is a deeper understanding of the breakdown of meanfield pictures due to dynamical correlations. The primary theoretical tools are the method of correlated basis functions and self-consistent Green's function theory, applied in parallel or joint investigations.

拟议的研究将继续一项旨在准确 强相互作用的性质的理论预测 量子多体系统，在微观层面上定义为 选民之间的基本力量。 的系统 感兴趣包括超流液态氦-四非极化的， 极化液态氦-三，自旋排列的大块原子氢 和氘，核物质，中子物质，原子核， 强耦合电子系统。 静态和动态 所选择的实例，特别是氦液体， 原子核和核物质将被计算出来。 特别强调 放在可以与结果进行比较的预测上 目前的实验旨在探索 多体系统的结构 这些实验包括深- 液氦的非弹性中子散射（例如， 阿贡IPNS设施）和包容性电子散射 在GeV能量的核（例如在CEBAF）。 基本目标是 更深入地理解平均场图像的分解， 到动力学相关性。 主要的理论工具是 相关基函数和自洽绿色方法 功能理论，适用于平行或联合调查。