Time-Dependent Quasiparticle Current Density Functional Theory of X-Ray Nonlinear Response Functions
arXiv:cond-mat/0312716 · doi:10.1103/PhysRevB.69.155104
Abstract
A real-space representation of the current response of many-electron systems with possible applications to x-ray nonlinear spectroscopy and magnetic susceptibilities is developed. Closed expressions for the linear, quadratic and third-order response functions are derived by solving the adiabatic Time Dependent Current Density Functional (TDCDFT) equations for the single-electron density matrix in Liouville space.
11 pages