报告人:杨玮枫 教授(海南大学)
邀请人:姜维超 副教授
时 间:2024年11月29日(周五)11:00-12:00
地 点:深大沧海校区致原楼1101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 electron 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,海南大学教授(二级),博士生导师,教育部知名学者特聘教授,全国优秀博士学位论文获得者,海南省B类人才,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等方法,有效地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,以第一完成人获省部级自然科学二等奖一项。
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