93 citations · 159 across the 4 of their papers we have counts for
6 papers
Effects of dynamical screening on the BCS-BEC crossover in double bilayer graphene: Density functional theory for exciton bilayers
Fredrik Nilsson, Ferdi Aryasetiawan
We derive a gap equation for bilayer excitonic systems based on density functional theory and benchmark our results against quantum Monte-Carlo simulations and recent experiments o…
Normal state of NdSrNiO from self-consistent +EDMFT
Francesco Petocchi, Viktor Christiansson, Fredrik Nilsson +2
The recent discovery of superconductivity in hole-doped NdNiO thin films has captivated the condensed matter physics community. Such compounds with a formal Ni valence have…
Screening from states and antiferromagnetic correlations in perovskites: A +EDMFT investigation
Francesco Petocchi, Fredrik Nilsson, Ferdi Aryasetiawan +1
We perform a systematic {\it ab initio} study of the electronic structure of Sr(V,Mo,Mn)O perovskites, using the parameter-free +EDMFT method. This approach self-consistent…
Position Representation of Effective Electron-Electron Interactions in Solids
Tor Jonas Sjöstrand, Fredrik Nilsson, Christoph Friedrich +1
An essential ingredient in many model Hamiltonians, such as the Hubbard model, is the effective electron-electron interaction , which enters as matrix elements in some localized…
Dynamically screened Coulomb interaction in the parent compounds of hole-doped cuprates, trends and exceptions
Fredrik Nilsson, Krister Karlsson, Ferdi Aryasetiawan
Although the cuprate high-temperature superconductors were discovered already 1986 the origin of the pairing mechanism remains elusive. While the doped compounds are superconductin…
Multitier self-consistent +EDMFT
Fredrik Nilsson, Lewin Boehnke, Philipp Werner +1
We discuss a parameter-free and computationally efficient ab initio simulation approach for moderately and strongly correlated materials, the multitier self-consistent +EDMFT m…