A quantum gas microscope to study fermions in an optical lattice

用于研究光学晶格中费米子的量子气体显微镜

• 批准号: RTI-2016-00503
• 负责人: Thywissen, Joseph
• 金额: $ 5.46万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591468
• 关键词: quantum; gas; microscope; study; fermions

Ultracold atoms are a versatile platform for the study of quantum collective behaviour. Quantum many-body physics dominates electrons in solid materials, where crystal structure and electron-electron interactions combine to produce exotic -- and sometimes useful -- properties. For instance, in superconducting materials, electrical current flows without resistance. Nearly thirty years ago, researchers synthesized materials that superconduct even at a relatively high temperature (compared to elemental metals), but the explanation of high-temperature superconductivity is still lacking. Part of the difficulty in developing a full conceptual picture is that material synthesis without impurities is only possible in a small number of chemical compounds, whose structure and behaviour are complex. It is unclear which properties are essential, and which are incidental, to high-temperature superconductivity.

超冷原子是研究量子集体行为的通用平台。量子多体物理学支配着固体材料中的电子，在固体材料中，晶体结构和电子-电子相互作用联合收割机结合在一起产生奇异的--有时是有用的--特性。例如，在超导材料中，电流流动没有电阻。近30年前，研究人员合成了即使在相对较高的温度下（与元素金属相比）也能超导的材料，但高温超导性的解释仍然缺乏。开发一个完整的概念图的部分困难在于，没有杂质的材料合成只可能在少数化合物中进行，这些化合物的结构和行为都很复杂。目前尚不清楚哪些性质对于高温超导性是必要的，哪些是附带的。