Speaker
Dr
Carlos L. Benavides-Riveros
(Martin-Luther-Universität Halle-Wittenberg)
Description
In this talk I present a new ab-initio theory for superconducting systems with non-local external potentials based on the one-particle reduced density matrix ρ(r,r′) and the anomalous density χ(r,r′). All the equilibrium properties of the system are determined uniquely by these two quantities. By replacing the local electronic density with the non-local one-particle reduced density matrix, our theory is able to solve difficulties which arise in DFT for superconductors. I sketch the proof of the existence of a non-interacting Kohn-Sham system that is able to reproduce ρ and χ of the interacting system at finite temperature. On the basis of the Kohn-Sham system, one obtains a set of Bogoliubov-de Gennes-like single particle equations.
Authors
Dr
Carlos L. Benavides-Riveros
(Martin-Luther-Universität Halle-Wittenberg)
Mr
Jonathan Schmidt
(Martin-Luther-Universität Halle-Wittenberg)
Prof.
Miguel A. L. Marques
(Martin-Luther-Universität Halle-Wittenberg)
