报告题目: Relativistic quantum dynamics with lasers

报告摘要: In the lecture, we will first talk about x-ray quantum optics with nuclei and their sensitivity to gravitation on earth. We then move over to electron diffraction in standing laser waves (Kapitza-Dirac effect), with a focus on spin dynamics in the effect. After a short introduction about the Kapitza-Dirac effect, we will discuss a the formalism of a plane wave expansion, which is common for the description of the effect. We will than talk about some details of the quantum dynamics and move over to some interesting properties of the spin-transfer between electrons and light. Remarks are given about how to transition from time-dependent perturbation theory to covariant perturbation theory, for the case of linear dynamics at low field amplitudes. We will finally look at some more recent developments on the topic regarding focussed laser beams.

报告人简介： Professor Ahrens has studied in Germany (Darmstadt) and obtained his PhD at Heidelberg University in 2012 on the subject of electron quantum dynamics in strong laser fields, which he carried out at the Max-Planck-Institute for Nuclear Physics. He continued his research at the Beijing Computational Science Research Center (北京计算科学研究中心) and is affiliated as a faculty at Shanghai Normal University (上海师范大学) since 2018. Prof. Ahrens' research interest is relativistic quantum mechanics, usually in the context of strong x-ray lasers and gravitational effects.

主持联系人：李铮(Email: zheng.li@pku.edu.cn)

科学前沿报告会(623)