2003/12/31 by Oleg Berman, Oleg L. Berman, Shaul Mukamel
Mathematics · Physics and Astronomy · #Adiabatic process #Advanced Chemical Physics Studies #Computer science #Current (fluid) #Current density #Density functional theory #Electron #Geometry #Laser-Matter Interactions and Applications #Mathematical analysis #Mathematics #Nonlinear system #Orbital-free density functional theory #Physics #Quadratic equation #Quantum mechanics #Quasiparticle #Representation (politics) #Space (punctuation) #Spectroscopy and Quantum Chemical Studies #Time-dependent density functional theory #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.69.155104
11 pages
arxiv created 2003/12/31 · openalex publication_date 2004/04/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.