HR: 0800h
AN: MR11A-0900    [Abstracts]
TI: Path Integral Simulations of Hydrogen Melting at High Pressures
AU: * Graham, R L
EM: bekah@umail.ucsb.edu
AF: University of California, Santa Barbara, College of Creative Studies, Santa Barbara, CA 93117 United States
AU: Militzer, B
AF: Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015 United States
AB: The melting line of hydrogen at high pressure and low temperature is studied using computer simulations. Using path integral Monte Carlo, we focus on the regime where the protons form a Wigner crystal. The Lindemann ratios, structure factors, and pair correlation functions are used to characterize melting due to increases in both pressure and temperature. The effects of electron screening on the stability of the crystal are investigated by comparing results from Coulomb and Yukawa simulations.
DE: 3924 High-pressure behavior
DE: 0350 Pressure, density, and temperature
DE: 0903 Computational methods, potential fields
DE: 1015 Composition of the core
SC: Mineral and Rock Physics [MR]
MN: 2004 AGU Fall Meeting