Theoretical Studies of Classical and Quantum Effects in Superconductors

超导体经典效应和量子效应的理论研究

• 批准号: 9211339
• 负责人: Jorge Jose
• 金额: --
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-15 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9211339&HistoricalAwards=false
• 关键词: Theoretical; Studies; Classical; Quantum; Effects

Research in theoretical condensed matter physics will be performed using both large scale numerical simulations and analytical techniques to study the properties of homogeneous, inhomogeneous and artificially fabricated superconducting systems. This work is motivated by experimental discoveries and will, in turn, lead to predictions which can be tested by experiment. The problems to be studied include quantum fluctuation induced transitions; metastable magnetic properties; and, real time vortex dynamics, including self-field effects. The results obtained from this research will enhance our understanding of the physics of photolithographically fabricated arrays of ultrasmall Josephson junction arrays and of high temperature superconductors. %%% Research on a variety of problems of current interest in condensed matter physics revolving around the properties of very large arrays of ultrasmall Josephson junctions - a type of superconducting switch - will be undertaken. These arrays are important in their own right for possible applications to superconducting microelectronics and are also important for what they can tell us about the basic physics of high temperature superconductors and problems in disordered systems.

将进行理论凝聚态物理学的研究 使用大规模数值模拟和分析 技术来研究均匀的，非均匀的 和人工制造的超导系统 这项工作是 由实验发现驱动，反过来， 这些预测可以通过实验来验证。 存在的问题 研究包括量子涨落引起的跃迁;亚稳态 磁性;以及真实的时间涡旋动力学，包括 自场效应 从这项研究中获得的结果将 增强我们对电子照相物理学的理解 超小型约瑟夫森结阵列和 高温超导体 %%% 凝聚态中当前感兴趣的各种问题的研究 物质物理学围绕超大阵列的性质 超小约瑟夫森结--一种超导体 切换-将进行。 这些阵列在其 拥有超导应用的权利 微电子学也很重要，因为它们可以告诉我们 关于高温超导体的基本物理， 无序系统中的问题。