Reduced density matrix functional theory at finite temperature. II. Application to the electron gas: Exchange only

Abstract

Using the newly introduced theory of finite-temperature reduced density matrix functional theory, we apply the first-order approximation to the homogeneous electron gas. We consider both collinear spin states as well as symmetry broken states describing planar spin spirals and investigate the magnetic phase diagram as well as the temperature-dependence of the single particle spectra.

arXiv comment11 pages, 12 figures, 1 table; paper is 2nd part in a series of 3 on "Reduced density matrix functional theory at finite temperature."