Photoemission Spectra, d-Wave Superconductivity and Other Properties of High-Tc Electronic Models

这个项目的主要目标是在高温超导体的正常和超导状态下，对使用强相关电子模型的计算结果和实验结果进行比较。计算技术（精确对角化和量子蒙特卡罗）解决了电子系统的多体相关性。在某种程度上，研究人员正在测试他们最近提出的解释角度分辨光发射和传输数据的假设。他们正在使用他们的模型来计算光发射光谱，然后他们将与实验进行比较。如果成功，这些项目将澄清高温超导体的反常性质的几个方面。这些研究人员正在与位于佛罗里达州塔拉哈西的国家高磁场实验室的其他人合作，后者正在从理论上和实验上研究这些材料在强磁场中的作用。这个项目的总体目标是在高温超导体的正常和超导状态下，对使用强相互作用电子模型的计算结果和实验结果进行比较。社区承认研究人员是解决电子系统多体相关性的计算技术专家。在某种程度上，研究人员正在测试他们最近提出的一种解释的假设，该解释涉及(a)从这些材料中发射光子（如光）和(b)电子的传输。利用他们的模型和假设，他们计算出如果他们的模型是正确的，实验将给出什么结果，然后与实验进行比较，以测试他们的模型与真实材料的接近程度。如果成功，这些项目将澄清高温超导体的反常性质的几个方面。这些研究人员正在与位于佛罗里达州塔拉哈西的国家高磁场实验室的其他人合作，后者正在从理论上和实验上研究这些材料在强磁场中的作用。＊＊＊

9520776 Dagotto The broad goal of this project is to carry out a comparison between calculations using models of strongly correlated electrons and experimental results in high-temperature superconductors, both in the normal and superconducting states. Computational techniques (exact diagonalization and quantum Monte Carlo) address the many-body correlations of the electronic systems. In part, the investigators are testing the assumptions of an explanation of angle-resolved photoemission and transport data that they recently proposed. They are using their model to calculate photoemission spectra, which they will then compare with experiments. If successful, these projects will clarify several aspects of the anomalous properties of high temperature superconductors. These investigators are collaborating with others at the National High Field Magnet Laboratory in Tallahassee, Florida, who are investigating these materials in strong fields both theoretically and experimentally. %%% The broad goal of this project is to carry out a comparison between calculations using models of strongly interacting electrons and experimental results in high-temperature superconductors, both in the normal and superconducting states. The community recognizes the investigators as experts in the computational techniques that address the many-body correlations of the electronic systems. In part, the investigators are testing the assumptions of an explanation that they recently proposed for experiments that involve (a) the emission of photons (such as light) from these materials and (b) the transport of electrons. Using their model, with its assumptions, they calculate what the experiments would give if their models were correct and then compare with experiments to test how close their model is to real materials. If successful, these projects will clarify several aspects of the anomalous properties of high temperature superconductors. These investigators are collaborating wit h others at the National High Field Magnet Laboratory in Tallahassee, Florida, who are investigating these materials in strong fields both theoretically and experimentally. ***