Fundamental Studies of Molecular Collisions and Chemical Reactions at Ultracold Temperatures

超冷温度下分子碰撞和化学反应的基础研究

• 批准号: 0555565
• 负责人: Balakrishnan Naduvalath
• 金额: $ 15万
• 依托单位: University of Nevada Las Vegas
• 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 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0555565&HistoricalAwards=false
• 关键词: Fundamental; Studies; Molecular; Collisions; Chemical

The experimental realization of molecular Bose-Einstein condensation in the last two years hasintensified research on ultracold molecules and collisional properties of ultracold molecules havebecome a topic of considerable experimental and theoretical interest. The objective of this pro-posal is to explore three key issues that are central to current research in ultracold molecules: (i)development of a computational algorithm for the description of collisional properties of ultracoldmolecules with special emphasis on ultracold molecule-molecule collisions; (ii) exploration of factors influencing chemical reactivity at ultralow temperatures, in particular, how long-range interaction influences chemical reactivity at cold and ultracold temperatures; (iii) exploration of coherent control of chemical reactivity in bimolecular scattering involving ultracold polar molecules.All three proposed topics will be addressed using explicit quantum mechanical calculations.

近两年来，分子玻色-爱因斯坦凝聚的实验实现使超冷分子的研究得到了进一步的发展，超冷分子的碰撞性质也成为实验和理论研究的热点。本文的目标是探讨当前超冷分子研究中的三个关键问题：（i）发展一种描述超冷分子碰撞性质的计算算法，特别是超冷分子-分子碰撞;（ii）探索影响超低温下化学反应性的因素，特别是，长程相互作用如何影响在低温和超冷温度下的化学反应性;（iii）探索涉及超冷极性分子的双分子散射中化学反应性的相干控制。所有三个提议的主题将使用明确的量子力学计算来解决。