Physics of Strongly Interacting Many-Electron Systems

强相互作用多电子系统物理学

• 批准号: 9527304
• 负责人: Douglas Scalapino
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9527304&HistoricalAwards=false
• 关键词: Physics; Strongly; Interacting; Many; Electron

9527304 Scalapino This project is for work on the physical properties of strongly interacting many electron systems. It includes numerical (using variety of techniques, MonteCarlo, density matrix renormalization group and transfer matrix diagonalization) calculations for the Heisenberg, Hubbard and t-J models describing fermions confined to coupled chains and/or planes. The goal of this work is to obtain a clearer physical understanding of the basic mechanism responsible for the magnetic, charge-density and pairing correlations and how these correlations give rise to the observed physical properties of strongly correlated materials. There are further proposals for phenomenological analyses that help elucidate the insights gained from the numerical calculations. %%% Some of the recently discovered magnets and superconductors are either chain-like (fibrous) or planar (flake) in their properties. The underlying materials are often the novel- synthetic materials. This theoretical study will help understand the properties and will be critical to potential applications of the novel synthetic materials. ***

9527304 Scalapino这个项目是为了研究强相互作用的多电子系统的物理性质。它包括数值（使用各种技术，蒙特卡洛，密度矩阵重整化群和转移矩阵对角化）计算海森堡，哈伯德和t-J模型描述费米子限制在耦合链和/或平面。这项工作的目标是获得一个更清晰的物理理解的基本机制负责的磁性，电荷密度和配对的相关性，以及这些相关性如何引起观察到的强相关材料的物理性质。有进一步的建议，现象学的分析，有助于阐明的见解，从数值计算。最近发现的一些磁体和超导体在性质上要么是链状（纤维状），要么是平面状（薄片状）。底层材料通常是新颖的合成材料。这一理论研究将有助于理解的性质，并将是至关重要的潜在应用的新型合成材料。***