J. Phys. IV France
Volume 10, Numéro PR5, March 2000
The 1999 International Conference on Strongly Coupled Coulomb Systems
Page(s) Pr5-247 - Pr5-250
The 1999 International Conference on Strongly Coupled Coulomb Systems

J. Phys. IV France 10 (2000) Pr5-247-Pr5-250

DOI: 10.1051/jp4:2000543

Dense hydrogen plasmas simulation : The multiscale recursion method

S. Bagnier, P. Dallot and G. Zérah

Commissariat à l'Énergie Atomique, BP. 12, 91680 Bruyères-le-Châtel, France

Within the framework of finite temperature DFT, we present and assess a novel multiscale recursion method to calculate the electronic density and the local density of states via the Green's function. Unlike plane wave methods, the computational time decreases with temperature. Tests are performed on a system representing a hydrogen plasma with a local pseudopotential. Calculations are distributed on grids with different spacings through scaling properties of the recursion. The computational workload increases linearly with the size of the system. It can be productively dispatched on an arbitrary number of processors. This method opens an angle to molecular dynamics simulations of hydrogen plasma in a range of material density and temperature where plane wave methods fail to compute efficiently the electronic density.

© EDP Sciences 2000