Formation and Dynamics of Ultracold Molecules

超冷分子的形成和动力学

• 批准号: 0555481
• 负责人: William Stwalley
• 金额: $ 39万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2010-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555481&HistoricalAwards=false
• 关键词: Formation; Dynamics; Ultracold; Molecules

This experimental research program is focused on continuing and expanding earlier efforts in the area of ultracold molecules. Improved formation schemes for ultracold molecules will be investigated, including not only photoassociation, but also magnetoassociation, a process in which a magnetic field is swept through a Feshbach resonance, converting an atom pair into a barely-bound molecule. Both formation methods yield molecules in high vibrational levels, close to the dissociation limit. Transfer to low vibrational levels will be addressed by using stimulated Raman transitions for efficient population transfer. The broader impact of the program involves student education as well as applications in quantum computing and nanoscience.

这个实验研究计划的重点是继续和扩大在超冷分子领域的早期努力。将研究超冷分子的改进形成方案，不仅包括光缔合，还包括磁缔合，这是一种磁场扫过费什巴赫共振，将原子对转化为几乎没有结合的分子的过程。两种形成方法都能产生高振动水平的分子，接近解离极限。向低振动能级的转移将通过使用受激拉曼跃迁来实现有效的人口转移。该计划的广泛影响涉及学生教育以及量子计算和纳米科学的应用。