Microscopic Theory of Quantum Fluids and Nuclear Systems

拟议的研究将继续开展一项计划，旨在在由成分之间的基本力定义的微观层面上，对强相互作用的量子多体系统的特性进行准确的理论预测。 感兴趣的系统包括超流液氦四、非极化和极化液氦三、自旋排列的块体原子氢和氘、核物质、中子物质、原子核和强耦合电子系统。 将计算所选示例的静态和动态特性，特别是氦液体、原子核和核物质。 特别强调的是可以与当前旨在探测多体系统相关结构的实验结果进行比较的预测。 这些实验包括来自液氦的深非弹性中子散射（例如在阿贡 IPNS 设施）和来自 GeV 能量的原子核的包容性电子散射（例如在 CEBAF）。 基本目标是更深入地了解动态相关性导致的平均场图像的分解。 主要的理论工具是相关基函数的方法和自洽格林函数理论，应用于并行或联合研究。

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.