Probe and control of Rydberg wave packets in atoms and molecules

原子和分子中里德伯波包的探测与控制

• 批准号: 410209276
• 负责人: Dr. Yonghao Mi
• 金额: --
• 依托单位: Max-Planck-Institut für Kernphysik
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/410209276?language=en
• 关键词: Probe; control; Rydberg; wave; packets

Highly excited (high principle quantum number) Rydberg atoms and molecules, which are considered as a bridge between classical and quantum world due to their mesoscopic dimensions, can play a key role in quantum information processing. Although the properties of Rydberg atoms and molecules have been extensively investigated, the dynamics of Rydberg wave packets, e.g., the population and decay of autoionizing states, have not been fully understood. In the proposed work entitled "Probe and control of Rydberg wave packets in atoms and molecules", I will develop a novel pump-probe experiment by combining ultrashort laser pulses with a reaction microscope to resolve the dynamics of electronic wave packets emitted from the Rydberg atoms and molecules. In the last part of the proposed work, a new Terahertz (THz) pulse generation setup will be built, and will be used for significantly improving the pump-probe experiment as the THz pulses act on the same time scale as the Rydberg wave packet dynamics. My work will contribute to the understanding of the highly excited states of atoms and molecules, which are always produced in intense laser pulses, and have been largely ignored until recently. These insights pave the way towards new remote sensing techniques and contribute to the development of quantum control of chemical reactions. The proposed work will also have positive impact on my scientific skills in my research field and serve the goal of transferring advanced techniques to Germany. Last but not least, the new scientific achievements will contribute to the prosperous development of European Leadership in the field of strong-field laser physics.

高激发（高原理量子数）里德伯原子和分子因其介观维度而被认为是经典世界和量子世界之间的桥梁，可以在量子信息处理中发挥关键作用。尽管里德伯原子和分子的性质已被广泛研究，但里德伯波包的动力学，例如自电离态的布居和衰变，尚未完全了解。在题为“原子和分子中里德伯波包的探测和控制”的拟议工作中，我将通过将超短激光脉冲与反应显微镜相结合来开发一种新颖的泵浦探测实验，以解析从里德伯原子和分子发射的电子波包的动力学。在拟议工作的最后一部分，将建立一个新的太赫兹（THz）脉冲生成装置，并将用于显着改进泵浦探针实验，因为太赫兹脉冲与里德伯波包动力学的时间尺度相同。我的工作将有助于理解原子和分子的高度激发态，这些状态总是在强激光脉冲中产生，直到最近才在很大程度上被忽视。这些见解为新的遥感技术铺平了道路，并有助于化学反应量子控制的发展。拟议的工作还将对我在研究领域的科学技能产生积极影响，并有助于实现将先进技术转移到德国的目标。最后但并非最不重要的一点是，新的科学成果将有助于欧洲在强场激光物理领域领导地位的繁荣发展。