Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
Strong electronic correlations pose one of the biggest challenges to solid state theory.
Recently developed methods that address this problem by starting with the local, eminently …
Recently developed methods that address this problem by starting with the local, eminently …
Tracking the footprints of spin fluctuations: A multimethod, multimessenger study of the two-dimensional Hubbard model
The Hubbard model represents the fundamental model for interacting quantum systems and
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …
electronic correlations. Using the two-dimensional half-filled Hubbard model at weak …
Multitier self-consistent
We discuss a parameter-free and computationally efficient ab initio simulation approach for
moderately and strongly correlated materials, the multitier self-consistent GW+ EDMFT …
moderately and strongly correlated materials, the multitier self-consistent GW+ EDMFT …
Finite temperature quantum embedding theories for correlated systems
The cost of the exact solution of the many-electron problem is believed to be exponential in
the number of degrees of freedom, necessitating approximations that are controlled and …
the number of degrees of freedom, necessitating approximations that are controlled and …
Impact of nonlocal correlations over different energy scales: A dynamical vertex approximation study
In this paper, we investigate how nonlocal correlations affect, selectively, the physics of
correlated electrons over different energy scales, from the Fermi level to the band edges …
correlated electrons over different energy scales, from the Fermi level to the band edges …
Recent progress in first-principles methods for computing the electronic structure of correlated materials
F Nilsson, F Aryasetiawan - Computation, 2018 - mdpi.com
Substantial progress has been achieved in the last couple of decades in computing the
electronic structure of correlated materials from first principles. This progress has been …
electronic structure of correlated materials from first principles. This progress has been …
Charge ordering and correlation effects in the extended Hubbard model
We study the half-filled extended Hubbard model on a two-dimensional square lattice using
cluster dynamical mean-field theory on clusters of size 8–20. We show that the model …
cluster dynamical mean-field theory on clusters of size 8–20. We show that the model …
Signatures of the Mott transition in the antiferromagnetic state of the two-dimensional Hubbard model
The properties of a phase with large correlation length can be strongly influenced by the
underlying normal phase. We illustrate this by studying the half-filled two-dimensional …
underlying normal phase. We illustrate this by studying the half-filled two-dimensional …
Diagrammatic Monte Carlo approach for diagrammatic extensions of dynamical mean-field theory: Convergence analysis of the dual fermion technique
The dual fermion approach provides a formally exact prescription for calculating properties
of a correlated electron system in terms of a diagrammatic expansion around dynamical …
of a correlated electron system in terms of a diagrammatic expansion around dynamical …
Two-particle Fermi liquid parameters at the Mott transition: Vertex divergences, Landau parameters, and incoherent response in dynamical mean-field theory
We consider the interaction-driven Mott transition at zero temperature from the viewpoint of
microscopic Fermi liquid theory. To this end, we derive an exact expression for the Landau …
microscopic Fermi liquid theory. To this end, we derive an exact expression for the Landau …