33 citations · 106 across the 9 of their papers we have counts for
4 papers · 1 filter
On spectral properties of Generalized Kadanoff--Baym Ansatz
Miroslav Hopjan
The Generalized Kadanoff--Baym Ansatz with mean-field propagators is increasingly used to simulate non-equilibrium quantum fermionic and bosonic systems. Compared with the full Kad…
Löwdin's symmetry dilemma within Green functions theory for the one-dimensional Hubbard model
J. -P. Joost, N. Schlünzen, S. Hese +4
The energy gap of correlated Hubbard clusters is well studied for one-dimensional systems using analytical methods and density-matrix-renormalization-group (DMRG) simulations. Beyo…
Nonequilibrium Kondo-vs-RKKY Scenarios in Nanoclusters
S. Ydman, M. Hopjan, C. Verdozzi
Ultrafast manipulations of magnetic phases are eliciting increasing attention from the scientific community, because potentially relevant to the understanding of nonequilibrium pha…
Merging Features from Green's Functions and Time Dependent Density Functional Theory: A Route to the Description of Correlated Materials out of Equilibrium?
M. Hopjan, D. Karlsson, S. Ydman +2
We propose a description of nonequilibrium systems via a simple protocol that combines exchange-correlation potentials from density functional theory with self-energies of many-bod…