Comprehensive Study of Cold and Ultracold Collisions

冷与超冷碰撞的综合研究

• 批准号: 1019043
• 负责人: Gregory Parker
• 金额: $ 18万
• 依托单位: University of Oklahoma Norman Campus
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1019043&HistoricalAwards=false
• 关键词: Comprehensive; Study; Cold; Ultracold; Collisions

This project will concentrate on the generation of accurate numerical results of quantum coherent-control, laser-matter interactions, conical intersections, Efimov physics, and bimolecular reaction dynamics. Concentration will be on maping out threshold behavior, influences of conical intersections and quantum resonances. The photon-system interactions will provide a rich environment for studying and controlling chemical reactions especially at ultracold and cold temperatures. Controlling chemical reactions will have long term consequences for many research fields. Controlling which chemical species are formed may lead to the production of new compounds as well as reducing the costs of producing certain products. Applications of intense laser fields include collision induced absorption and laser induced collisional energy transfer. The projects involve state-of-the-art theories and numerical methods for studying and controlling a variety of atom-diatom collisions with and without laser fields. Several different approaches are being used so that the researchers themselves, as well as the scientific community, can see relative advantages and disadvantages of each method.The project will support two excellent graduate students. The group is committed to providing the best possible education for its students, by providing enriched educational opportunities through advanced seminars in atomic, molecular, optical, and chemical physics during the summer. This project will increase the opportunities of students from under-represented regions in science and engineering while enhancing Oklahoma science and technology. This project will encourage faculty and students to participate in the statewide educational outreach activities of the K20 Center at the University of Oklahoma.

该项目将集中在量子相干控制，激光物质相互作用，圆锥交叉，Efimov物理和双分子反应动力学的精确数值结果的产生。 重点将放在绘制阈值行为，圆锥交叉点和量子共振的影响。光子与系统的相互作用将为研究和控制化学反应提供丰富的环境，特别是在超冷和低温下。控制化学反应将对许多研究领域产生长期影响。控制形成的化学物质可以导致新化合物的产生以及降低生产某些产品的成本。 强激光场的应用包括碰撞诱导吸收和激光诱导碰撞能量转移。这些项目涉及最先进的理论和数值方法，用于研究和控制各种原子-硅藻碰撞，无论是否有激光场。正在使用几种不同的方法，以便研究人员自己以及科学界能够看到每种方法的相对优缺点。该集团致力于为学生提供最好的教育，通过在夏季举办原子，分子，光学和化学物理高级研讨会提供丰富的教育机会。该项目将增加来自科学和工程代表性不足地区的学生的机会，同时加强俄克拉荷马州的科学和技术。该项目将鼓励教师和学生参加俄克拉荷马州大学K20中心的全州教育推广活动。