Unified first principles description from warm dense matter to ideal ionized gas plasma: electron-ion collisions induced friction.
Electron-ion interactions are central to numerous phenomena in the warm dense matter (WDM) regime and at higher temperature. The electron-ion collisions induced friction at high temperature is introduced in the procedure of ab initio molecular dynamics using the Langevin equation based on density functional theory. In this framework, as a test for Fe and H up to 1000 eV, the equation of state and the transition of electronic structures of the materials with very wide density and temperature can be described, which covers a full range of WDM up to high energy density physics. A unified first principles description from condensed matter to ideal ionized gas plasma is constructed.
Dai
Jiayu
J
Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, People's Republic of China.
Hou
Yong
Y
Yuan
Jianmin
J