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  1. No Access

    Article

    Optical properties from time-dependent current-density-functional theory: the case of the alkali metals Na, K, Rb, and Cs

    We present the optical conductivity as well as the electron-energy loss spectra of the alkali metals Na, K, Rb, and Cs calculated within time-dependent current-density functional theory. Our ab initio formulat...

    R. Ferradás, J. A. Berger, Pina Romaniello in The European Physical Journal B (2018)

  2. No Access

    Article

    Efficient calculation of the polarizability: a simplified effective-energy technique

    In a recent publication [J.A. Berger, L. Reining, F. Sottile, Phys. Rev. B 82, 041103(R) (2010)] we introduced the effective-energy technique to calculate in an accurate and numerically efficient manner the GW se...

    J. A. Berger, L. Reining, F. Sottile in The European Physical Journal B (2012)