Superconductivity in The Disordered, Attractive Hubbard Model

无序、有吸引力的哈伯德模型中的超导性

• 批准号: 0203837
• 负责人: Richard Scalettar
• 金额: $ 1.5万
• 依托单位: University of California-Davis
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-15 至 2005-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0203837&HistoricalAwards=false
• 关键词: Superconductivity; Disordered; Attractive; Hubbard; Model

This award supports a collaborative research project between Dr. Richard T. Scalettar of the University of California Davis and Dr. Raimundo dos Santos of the Universidade Federal do Rio de Janeiro, Brazil to study the nature of superconductivity in an attractive Hubbard Hamiltonian model. The model to be studied will have a random mix of attractive on-site interactions and sites with no attraction. A related model of borocarbides in which attrative Hubbard layers alternate with free layers where there is no interaction will also be studied. It is anticipated that this research will provide new insight into the nature of the superconducting phase transition and in particular the effect of impurity sites on pairing.

该奖项支持加州大学戴维斯分校的 Richard T. Scalettar 博士和巴西里约热内卢联邦大学的 Raimundo dos Santos 博士之间的合作研究项目，以研究有吸引力的哈伯德哈密顿模型中的超导性质。要研究的模型将具有有吸引力的现场交互和没有吸引力的站点的随机组合。还将研究硼碳化物的相关模型，其中有吸引力的哈伯德层与没有相互作用的自由层交替。预计这项研究将为超导相变的性质，特别是杂质位点对配对的影响提供新的见解。