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[表面科学论坛95] Lecture I: Real Time TDDFT: Basics and Applications / Lecture II. Ab-initio Simulations for Attosecond Spectroscopy in Solids
时间: 2017年09月11日 10:00
地点: 物理研究所M楼236会议室
报告人: Professor? Kazuhiro Yabana

Center for Computational Sciences, University of Tsukuba

Lecture I: Real Time TDDFT: Basics and Applications
Lecture II. Ab-initio Simulations for Attosecond Spectroscopy in Solids

报告摘要
Time-dependent density functional theory (TDDFT) is an extension of the well-known DFT and can describe electron dynamics in molecules, nano-structures, and solids induced by optical electric fields. We have been developing a computational method to describe electron dynamics in molecules and crystalline solids by solving the time-dependent Kohn-Sham equation in real time [1]. I will give two seminars, in the first part of my seminar, I will talk on basic and historical aspects of the method and its applications. In the second part, I will talk on our recent applications of the real-time TDDFT to atto-second spectroscopies in crystalline solids. We have developed an ab-initio scheme coupling the real-time TDDFT with the macroscopic Maxwell equations in a multiscale implementation [2]. The method can describe propagations of ultrashort laser pulses in dielectrics and, in particular, the energy transfer from the pulsed light to electrons in dielectrics without any empirical parameters. We apply the method to analyze recent experiments employing attosecond spectroscopy methods [3,4].

References:
[1] K. Yabana et.al, Phys. Rev. B54, 4484 (1996).
[2] K. Yabana et.al, Phys. Rev. B85, 045134 (2012).
[3] M. Lucchini et.al, Science 353, 916 (2016).
[4] A. Sommers et.al, Nature 534, 86 (2016).

报告时间:2017年09月11日上午10:00 (Lecture I)
                2017年09月12日上午09:00 (Lecture II)

邀请人及联系人:孟胜 研究员(82649396)
主办单位:表面物理国家重点实验室 


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