Simulations of Dense Atomic Hydrogen in the Wigner Crystal Phase
Abstract
Path integral Monte Carlo simulations are applied to study dense atomic hydrogen in the regime where the protons form a Wigner crystal. The interaction of the protons with the degenerate electron gas is modeled by Thomas-Fermi screening, which leads to a Yukawa potential for the proton-proton interaction. A numerical technique for the derivation of the corresponding action of the paths is described. For a fixed density of rs=200, the melting is analyzed using the Lindemann ratio, the structure factor and free energy calculations. Anharmonic effects in the crystal vibrations are analyzed.
Cite
@article{arxiv.cond-mat/0506463,
title = {Simulations of Dense Atomic Hydrogen in the Wigner Crystal Phase},
author = {Burkhard Militzer and Rebekah L. Graham},
journal= {arXiv preprint arXiv:cond-mat/0506463},
year = {2009}
}
Comments
Proceedings article of the Study of Matter at Extreme Conditions (SMEC) conference in Miami, Florida; submitted to Journal of Physics and Chemistry of Solids (2005)