158 citations · 332 across the 6 of their papers we have counts for
6 papers
Potential energy surfaces from many-body functionals: analytical benchmarks and conserving many-body approximations
Giovanna Lani, Nicola Marzari
We investigate analytically the performance of many-body energy functionals, derived respectively by Klein and Luttinger and Ward, at different levels of diagrammatic approximation…
Time-dependent density-functional theory for strongly interacting electrons
Luis Cort, Daniel Karlsson, Giovanna Lani +1
We consider an analytically solvable model of two interacting electrons that allows for the calculation of the exact exchange-correlation kernel of time-dependent density functiona…
The adiabatic strictly-correlated-electrons functional: kernel and exact properties
Giovanna Lani, Simone di Marino, Augusto Gerolin +2
We investigate a number of formal properties of the adiabatic strictly-correlated electrons (SCE) functional, relevant for time-dependent potentials and for kernels in linear respo…
Dzyaloshinskii-Moriya interaction and Hall effects in the skyrmion phase of MnFeGe alloys
J. Gayles, F. Freimuth, T. Schena +6
We carry out density functional theory calculations which demonstrate that the electron dynamics in the skyrmion phase of Fe-rich MnFeGe alloys is governed by Berry pha…
The valence electron photoemission spectrum of semiconductors: ab initio description of multiple satellites
Matteo Guzzo, Giovanna Lani, Francesco Sottile +7
The experimental valence band photoemission spectrum of semiconductors exhibits multiple satellites that cannot be described by the GW approximation for the self-energy in the fram…
Approximations for many-body Green's functions: insights from the fundamental equations
Giovanna Lani, Pina Romaniello, Lucia Reining
Several widely used methods for the calculation of band structures and photo emission spectra, such as the GW approximation, rely on Many-Body Perturbation Theory. They can be obta…