Physics of Non-Fermi-Liquid Metals

9712626这是一项对强关联电子系统中金属非费米液体物理进行理论研究的拨款。项目将包括：扩展哈伯德模型的非费米液体解；阐明接近量子相变的非费米液体金属中的元素激发；以及与一个实验计划合作，研究高温超导体正常状态下的电子-自旋扩散。理论研究将研究电子在其中强烈相互作用的金属中的行为。在这种情况下，正常电子在固体中行为的概念和通常的分析方法都受到了质疑。本研究将试图解决与这一具有根本性和现实意义的重要问题相关的一些问题。***

9712626 Si This is a grant to conduct theoretical research on the physics of metallic non-Fermi liquids in strongly correlated electron systems. Projects will include: non-Fermi liquid solutions to an extended Hubbard model; elucidation of the elementary excitations in non-Fermi liquid metals close to quantum phase transitions; and, a collaboration with an experimental program to study the electron-spin diffusion in the normal state of high temperature superconductors. %%% The theoretical research will study the behavior of electrons in metals in which the electrons are strongly interacting. In this case, the very concepts on which normal electrons behave in solids and the usual methods of analysis are called into question. This research will attempt to resolve some questions related to this very important problem which is of fundamental and practical interest. ***