Speaker: Prof. Suxing Hu, Laboratory for Laser Energetics, University of Rochester
Time: Thursday, August 10th 15:00 pm
Venue: Rm. 413, Bld. 11#, Yuquan Campus
Abstract：Accurate knowledge of the properties of warm-dense plasmas is essential for reliably designing inertial confinement fusion (ICF) implosions. In the warm-dense matter regime, routinely accessed by low-adiabat ICF implosions, many-body strong-coupling and electron degeneracy effects play an important role in determining plasma properties. Using first-principles methods of both path-integral Monte Carlo and Quantum Molecular-Dynamics, we have performed systematic investigation of the Equation-of-State, thermal conductivity, and opacity of deuterium-tritium (DT), polystyrene (CH), Beryllium, and Silicon over a wide range of densities and temperatures. Our ab-initio results, significantly different from traditional plasma models, are favorably compared with experiments. Incorporating these first-principles properties into our hydro-codes for ICF simulations, we have observed significant differences in predicting 1-D target performance on OMEGA and NIF. In this talk, I will focus on what impacts of the first-principles properties of DT and CH on the understanding of ICF implosions, and what challenges we are facing in understanding high-energy-density physics in general.
Dr. Suxing Hu is a Senior Scientist and the Group Leader of the theoretical high-energy-density physics group at the Laboratory for Laser Energetics (LLE), University of Rochester. He started theoretical studies on how intense laser pulse interacts with atoms, molecules, and clusters in late-1990’s supervised by Prof. Zhizhan Xu. He got his PhD in physics from Chinese Academy of Sciences, at Shanghai Institute of Optics and Fine Mechanics in 1998. After graduation, he took the Alexander von Humboldt Fellowship and continued his AMO physics researches at University of Freiburg and Max-Born-Institute in Berlin. Suxing moved to the US in 2001 as a postdoc research associate at University of Nebraska-Lincoln. Late on he became a Director’s Postdoc Fellow at Los Alamos National Laboratory. He joined in LLE as a scientist in 2006 and became a senior scientist in 2013. As a theoretician, he is interested in understanding how matters behave under extreme conditions such as under ultra-high pressures and in super-strong/ultrafast fields. Suxing was awarded The Hundred Outstanding Doctorate Thesis Prize by China’s Dept. of Education in 2000, among other prizes. Suxing has published over ~160 articles on top-ranked physics journals, including Nature Communications and 30 Physical Review Letters of which 11 PRLs are first-authored, which receive over ~4100 citations so far. For his contributions to attosecond physics, he was elected a Fellow of the American Physical Society in 2013.
You are warmly welcomed to take part in it.