Very-high-temperature molecular dynamics -: art. no. 016403

被引:140
作者
Lambert, F [1 ]
Clérouin, J [1 ]
Zérah, G [1 ]
机构
[1] CEA, DAM Ile de France, Dept Phys Theor & Appl, F-91680 Bruyeres Le Chatel, France
来源
PHYSICAL REVIEW E | 2006年 / 73卷 / 01期
关键词
D O I
10.1103/PhysRevE.73.016403
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
It is shown that a modified scheme of density functional theory, using the Thomas-Fermi kinetic energy functional for the electrons, is well suited to perform very-high-temperature molecular dynamics simulations on high-Z elements. As an example, iron on the principal Hugoniot is simulated up to 5 keV and 5 times the normal density, giving an equation of state in agreement with current models. Ionic structure is obtained and is given to an excellent level of precision by the structure of the one-component plasma computed for a coupling parameter corresponding to Thomas-Fermi ionization.
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页数:5
相关论文
共 23 条
[1]   UNIFIED APPROACH FOR MOLECULAR-DYNAMICS AND DENSITY-FUNCTIONAL THEORY [J].
CAR, R ;
PARRINELLO, M .
PHYSICAL REVIEW LETTERS, 1985, 55 (22) :2471-2474
[2]   GROUND-STATE OF THE ELECTRON-GAS BY A STOCHASTIC METHOD [J].
CEPERLEY, DM ;
ALDER, BJ .
PHYSICAL REVIEW LETTERS, 1980, 45 (07) :566-569
[3]   THOMAS-FERMI MOLECULAR-DYNAMICS [J].
CLEROUIN, J ;
POLLOCK, EL ;
ZERAH, G .
PHYSICAL REVIEW A, 1992, 46 (08) :5130-5137
[4]   Electrical conductivity and equation-of-state study of warm dense copper:: Measurements and quantum molecular dynamics calculations -: art. no. 064203 [J].
Clérouin, J ;
Renaudin, P ;
Laudernet, Y ;
Noiret, P ;
Desjarlais, MP .
PHYSICAL REVIEW B, 2005, 71 (06)
[5]   Dense hydrogen plasma: Comparison between models [J].
Clerouin, JG ;
Bernard, S .
PHYSICAL REVIEW E, 1997, 56 (03) :3534-3539
[6]   Electrical conductivity for warm, dense aluminum plasmas and liquids [J].
Desjarlais, MP ;
Kress, JD ;
Collins, LA .
PHYSICAL REVIEW E, 2002, 66 (02)
[7]   Thomas-Fermi-like and average atom models for dense and hot matter [J].
Fromy, P ;
Deutsch, C ;
Maynard, G .
PHYSICS OF PLASMAS, 1996, 3 (03) :714-730
[8]   INHOMOGENEOUS ELECTRON-GAS [J].
RAJAGOPAL, AK ;
CALLAWAY, J .
PHYSICAL REVIEW B, 1973, 7 (05) :1912-1919
[9]  
Johnson W. R., 2002, FORTRAN PROGRAM TEMP
[10]  
Kress JD, 2001, PHYS REV B, V63