Metallization of atomic solid hydrogen within the extended Hubbard model with renormalized Wannier wave functions

Abstract

We refer to our recent calculations (Eur. Phys. J. B, \textbf{86}, 252 (2013)) of metallization pressure of the three-dimensional simple-cubic crystal of atomic hydrogen and study the effect on the crucial results concocting from approximating the $1s$ Slater-type orbital function with a series of $p$ Gaussians. As a result, we find the critical metallization pressure $p_C=102GPa$. The latter part is a discussion of the influence of zero-point motion on the stabilizing pressure. We show that in our model the estimate magnitude of zero-point motion carries a little effect on the critical metallization pressure at zero temperature.

4 pages, 5 figures, 1 table

References in corpus (1)

• Extended Hubbard model with renormalized Wannier wave functions in the correlated state: beyond the parametrized models