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Self-energy effects and energy band theory for warm dense matter

报告人:X. T. He with the WDM team (Center for Applied Physics and Technology of Peking University)
时间:2018年5月12日(周二)12:20-13:30
地 点:工学院1号楼210会议室 
主持人:康炜 教授

报告简介:

Energy band structures due to energy-level broadening and merging caused by the self-energy shift from the compression effect of matter in the warm dense Al are found, and a number of electrons from pressure ionization, which are in Mott scattering states and result in a significant electric (thermal) transport, are observed by numerical simulations. We proposed an energy band theory for warm dense matter (WDM), which involves the scattering wave, the plane wave and the degenerate atom with significant bound-energy-level shifting and broadening, and developed an extended QMD (EQMD) method under the frame of thermal density functional theory. Using EQMD, with the great reduction of computing time, we have numerically accomplished a large account of data related to equation of state, electrical (thermal) conductivities, etc., in which all embody clear electronic-structure features, and for the first time we also investigate the partial degenerate boundaries for WDM using Lorentz number.


报告人介绍:

Prof. He is theoretical physicist, graduated from the Department of Physics, Zhejiang University, in 1962. Research professor, supervisor for Ph.D. student, and the former deputy director of Institute of Applied Physics and Computational Mathematics (IAPCM) in Beijing. Now he is chief scientist of National 863 Hi-Tech Inertial Confinement Fusion (ICF) Project and chief scientist of IAPCM; Member of Expert Committee of Nonlinear Science, Major State Basic Research. He made important contributions to theoretical research on physics of nuclear weapons. In the field of plasma physics, he first obtained an exact expression for spontaneously magnetic field generated from electromagnetic wave interaction; and first derived the cubic-quintic Schrodinger equation and its solitary wave solution. And he also achieved many original fruits, such as found mechanism for solitary waves to accelerate particles, coherent turbulence with small-scale correlation in plasma, etc. He was awarded the Second Prize of National Nature Science, the First and Second Prizes of National Science and Technology Advances, and other Ministry Prizes etc. He was elected Member of Chinese Academy of Sciences in 1995.

Copyright: Center for Applied Physics and Technology, Peking  University Room 402, Engineering Building 1, Peking University, Bejing,  100871, China

Tel: 86-10-62753944      E-mail: jyxii@pku.edu.cn; ganqiumei@pku.edu.cn