The figure shows pressure as a function of density in deuterium and shock velocity versus pusher velocity in the compressed fluid; measured and calculated Hugoniot curves are shown. Similar to Path Integral (B. Militzer and D. Ceperley) and Variational Monte Carlo (B. Militzer and E.L. Pollock, Phys. Rev. E 2000) simulations, quantum molecular dynamics results (G. Galli, R. Hood, A. Hazi and F. Gygi, Phys. Rev. B 61, 909 (2000)) disagree with experiment on the fluid maximum compression along the Hugoniot. Theoretical results show a much smaller compression than found in laser shocked samples. All of the simulations (Path Integral, Quantum Monte Carlo and Quantum Molecular Dynamics) have been performed on the LLNL ASCI machines.

Metallic liquid Molecular Metallic Liquid Molecular Liquid Path integral Monte Carlo simulations have been used to study the transition from a molecular to a metallic state in hot dense hydrogen.

The Search for Metallic Hydrogen

UCRL-MI-140705
Date last modified: 10/09/00
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