Theory of Many Body Systems

多身体系统理论

• 批准号: 9509743
• 负责人: Siu Chin
• 金额: $ 15.9万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9509743&HistoricalAwards=false
• 关键词: Theory; Many; Body; Systems

9509743 Krotscheck Theoretical research will be conducted on strongly correlated many-body systems. Existing models will be applied to experiments and suggestions for new experiments will be made. In other areas where there are deficiencies in existing theoretical methods, the appropriate theory will be developed. Problems to be addressed include excitations of helium-four films and clusters; the description of adsorbed helium-three films and droplets, and in particular quasi-two-dimensional and layered electronic structures; and the formulation and implementation of a theory of multiparticle-multihole excitations analogous to the multi- phonon theory for bosons. %%% This theoretical research will deal with the formalism and applications of systems of many strongly interacting particles. Of particular interest are low temperature systems such as liquid helium which exhibit quantum properties. Connection will be made to recent experiments. ***

9509743 Krotscheck将对强关联多体系统进行理论研究。 现有的模型将被应用到实验中，并为新的实验提出建议。 在现有理论方法存在不足的其他领域，将发展相应的理论。 需要解决的问题包括氦-4膜和团簇的激发;吸附氦-3膜和液滴的描述，特别是准二维和分层电子结构;以及类似于玻色子多声子理论的多粒子-多孔激发理论的制定和实施。 这一理论研究将涉及多强相互作用粒子系统的形式和应用。 特别令人感兴趣的是低温系统，如液氦，其表现出量子特性。 将与最近的实验联系起来。 ***