Aspects of Bose-Einstein Condensation

玻色-爱因斯坦凝聚的各个方面

• 批准号: 9722033
• 负责人: Thomas Bergeman
• 金额: $ 16.5万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2000-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9722033&HistoricalAwards=false
• 关键词: Aspects; Bose; Einstein; Condensation

Detailed theoretical calculations at both zero and finite temperatures are performed for Bose-Einstein condensation in gases having a negative scattering length. The importance of addressing this issue concerns the prediction that Bose-Einstein condensation cannot occur in homogeneous, infinite quantum systems with a negative scattering length. The research focuses on the theoretical treatment of 7Li, an alkali gas having a negative scattering length, which has been shown experimentally to have a small, stable BEC.

在零温度和有限温度下对具有负散射长度的气体中的玻色-爱因斯坦凝聚进行了详细的理论计算。解决这一问题的重要性与预测有关，即玻色-爱因斯坦凝聚不能发生在具有负散射长度的均匀无限量子系统中。7Li是一种具有负散射长度的碱气，实验证明它具有小而稳定的BEC。