Resonance Fermi-Superfluidity in a Carbon Dioxide Laser Trap

二氧化碳激光阱中的共振费米超流性

• 批准号: 0138972
• 负责人: John Thomas
• 金额: $ 39.55万
• 依托单位: Duke University
• 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: 2002-05-01 至 2005-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0138972&HistoricalAwards=false
• 关键词: Resonance; Fermi; Superfluidity; Carbon; Dioxide

The objective of this work is the development of a second generation high-power, high-stability CO2 laser trap and its application to study resonant scattering interactions in ultracold two-state mixtures of Li-6 fermions. Of particular interest is the investigation of a new type of superfluid pairing which has recently been predicted to result from very strong resonant attractive interactions in the vicinity of a Feshbach resonance. In such resonance superfluidity, transition temperatures can be a large fraction of the Fermi temperature, far larger than in usual BCS pairing interactions, and much larger than even the highest temperature superconductors known.

本工作的目标是发展第二代高功率、高稳定性CO2激光阱，并将其应用于研究Li-6费米子超冷两态混合物中的共振散射相互作用。特别感兴趣的是一种新类型的超流配对的调查，最近被预测导致非常强的共振吸引力的相互作用在附近的Feshbach共振。在这种共振超流性中，转变温度可以是费米温度的很大一部分，远远大于通常的BCS配对相互作用，甚至比已知的最高温度超导体大得多。