报告题目：Tracing spatiotemporal information in ultrafast dynamics

报告人：杨玮枫 教授，海南大学

报告时间：2024年7月11日（星期四）上午10：00-12：00

报告地点：致知楼3328会议室

报告摘要：

Tracing electron dynamics in real time is central to the understanding and exploring of the fundamental photophysical and photochemical processes. We demonstrated that the quantum time delays of different ionization pathways in strong-field dynamics can be clearly resolved and extracted with semiclassical statistical methods and a large number of elenctron trajectories. Our results unified the seemingly opposing quantum Eisenbud-Wigner-Smith time delay and classical Coulomb-induced time delay by highlighting the same physical picture. We employed deep learning to perform Feynman’s path integral approaches to demonstrate the classical-quantum correspondence. We found that some quantum mechanical concepts such as "state", "excitation" and “resonance” in molecules can be expressed by statistical electron trajectories. We revealed the nonadiabatic tunneling dynamics in solid-state high harmonic generation.

报告人简介：

杨玮枫，教授，博士生导师，国家重大人才工程项目入选者，全国优秀博士学位论文获得者，计算原子与分子物理专业委员会委员，原子分子物理专委会青年委员会委员，海南省物理学类教学指导委员会主任委员，《光学学报（网络版）》编委，卓越期刊Ultrafast Science青年编委。提出了深度学习费曼路径积分强场动力学方法及大规模电子轨道加权统计时间分析方法等，有效推动了强场阿秒电子时空动力学研究的发展。在Physical Review Letters, Light: Science & Applications等上发表论文60余篇，多项研究成果入选英国物理学会等的Highlight, Editor-in-Chief Choice Award等。2008年入选上海市科技启明星计划，2009年入选全国优秀博士学位论文奖，2023年入选国家重大人才工程项目等。