5 papers
Image states in metal clusters
Patrick Rinke, Kris Delaney, P. Garcia-Gonzalez +1
The existence of image states in small clusters is shown, using a quantum-mechanical many-body approach. We present image state energies and wave functions for spherical jellium cl…
Assessment of density functional approximations: long-range correlations and self-interaction effects
J. Jung, P. García-González, J. E. Alvarellos +1
The complex nature of electron-electron correlations is made manifest in the very simple but non-trivial problem of two electrons confined within a sphere. The description of highl…
Many-body GW Calculations of Ground-State Properties: Quasi-2D Electron Systems and van der Waals Forces
P. Garcia-Gonzalez, R. W. Godby
We present GW many-body results for ground-state properties of two simple but very distinct families of inhomogenous systems in which traditional implementations of density-functio…
Diagrammatic self-energy approximations and the total particle number
Arno Schindlmayr, P. Garcia-Gonzalez, R. W. Godby
There is increasing interest in many-body perturbation theory as a practical tool for the calculation of ground-state properties. As a consequence, unambiguous sum rules such as th…
Self-Consistent Calculation of Total Energies of the Electron Gas Using Many-Body Perturbation Theory
P. Garcia-Gonzalez, R. W. Godby
The performance of many-body perturbation theory for calculating ground-state properties is investigated. We present fully numerical results for the electron gas in three and two d…