Strong Electronic Correlations in Layered Materials, in Nanoscale Dynamics, and in Actinide Complexes

对几类层状材料的复杂实验研究，以及最近在量子点和线等纳米结构的制造和表征方面的进展，需要对强相关电子系统有更深的理论理解。对含水锕系络合物的实际描述也需要以超越量子化学通常方法的方式处理强相关关系。本理论研究将采用系统分析与数值方法相结合的方法来建立相图，研究非平衡动力学，并研究复杂材料中的电荷转移。强电子相关的作用将在三种不同的电子系统中进行研究：层状材料，如铜高温和有机超导体，量子反铁磁体；远非平衡的量子多体理论，如最近在量子点中的近藤效应和量子线中的Luttinger液体行为中看到的；核废料中发现的含水钚复合物。这是一个基础广泛的理论程序，其共同点是所有关键都涉及强相互作用的电子。这需要新的和强大的技术。选择的问题是多种多样的，范围从高温超导体的物理学到核废料的化学

Sophisticated experimental studies of several classes of layered materials, as well as recent advances in the fabrication and characterization of nanostructures such as quantum dots and wires, require a deeper theoretical understanding of strongly correlated electronic systems. Realistic descriptions of aqueous actinide complexes also require the treatment of strong corelations in ways that go beyond the usual methods of quantum chemistry.This theoretical research will employ a combination of systematic analytical and numerical methods to establish phase diagrams, to study far-from-eqilibrium dynamics, and to study charge-transfer in complex materials. The role of strong electronic correlations will be investigated in three different electronic systems: layered materials such as the cuprate high temperature and organic superconductors, and quantum antiferromagnets; quantum many-body theory far-from-equilibrium as seen recently in the Kondo effect in quantum dots and Luttinger liquid behavior in quantum wires; and, aqueous plutonium complexes as found in nuclear waste.%%%This is a broad-based theoretical program with the common thread that all critically involve electrons which interact strongly. This calls for new and powerful techniques. The problems chosen are diverse and range from the physics of high temperature superconductors to the chemistry of nuclear waste materials.***