Strongly Interacting Quantum Mixtures of Ultracold Atoms

超冷原子的强相互作用量子混合物

• 批准号: 0969311
• 负责人: Martin Zwierlein
• 金额: $ 60万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-15 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0969311&HistoricalAwards=false
• 关键词: Strongly; Interacting; Quantum; Mixtures; Ultracold

This is a research program on mixtures of ultracold atomic gases with the goal to study novel forms of matter. These gases represent an entirely new material with unique and controllable properties, and they provide a model system for the physics of electrons in modern materials. The experiments focus on phenomena far from equilibrium and in the presence of disorder, two themes that are poorly understood theoretically, but of great importance in uncovering the workings of High-TC superconductors and colossal magnetoresistive materials. One series of experiments will deal with spin transport in Fermi gases, with implications for the emerging field of spintronics. A second class of experiments will establish the rules by which diffusion, interactions and disorder can quench metallic states and how impurities promote or destroy superfluidity. This research will test and thereby advance current theories and is relevant to diverse fields of physics: From studies of high-temperature superconductors in condensed matter physics, to the quark-gluon plasma of the early Universe and the behavior of neutron matter in nuclear physics. Improved knowledge gained from these experiments may enable material scientists to harness the power of modern materials for storage devices with extreme data density, for energy efficiency and lightweight electric motors. The work will provide training for graduate and undergraduate students and postdocs on lasers, computer control, vacuum assemblies, and radiofrequency and microwave electronics, thereby combining research with education objectives. The direct observation and manipulation of many-body states will provide a very stimulating and rewarding experience at a time when the fields of atomic physics and condensed matter physics merge. All research will be performed on campus and will be fully integrated in teaching and education, via MIT's program for Undergraduate Research Opportunities (UROP) and in physics and public lectures by providing visual illustrations for basic concepts in physics.

这是一项关于超电原子气体混合物的研究计划，其目标是研究新的物质形式。这些气体代表了具有独特可控制的特性的全新材料，它们为现代材料中电子物理的模型系统提供了模型系统。这些实验的重点是远非平衡和存在障碍的现象，这两个主题在理论上却鲜为人知，但在发现高-TC超导体和巨大磁性材料的运作方面非常重要。一系列的实验将处理费米气体中的自旋运输，这对新兴的Spintronics领域产生了影响。第二类实验将建立扩散，相互作用和混乱可以消除金属状态以及杂质如何促进或破坏超流量的规则。这项研究将测试并提高当前理论，并与物理学的各个领域有关：从凝聚态物理学中的高温超导体的研究到早期宇宙的夸克 - 网状等离子体以及核物理中中性物质的行为。从这些实验中获得的提高知识可能使材料科学家能够利用现代材料的力量，用于具有极端数据密度的存储设备，以提高能源效率和轻型电动机。这项工作将为研究生和本科生以及有关激光器，计算机控制，真空组件以及射频和微波电子的培训，从而将研究与教育目标相结合。在原子物理学和凝结物理学融合的田地合并的时候，对多体状态的直接观察和操纵将提供非常刺激和有意义的体验。所有研究都将在校园内进行，并通过MIT的本科研究机会（UROP）以及物理和公开讲座的计划，通过为物理学的基本概念提供视觉插图，并在教学和教育中充分整合。