162 citations · 530 across the 12 of their papers we have counts for
11 papers · 1 filter
Magnetic instabilities in three- and higher-dimensional Hubbard models with different lattice geometries: Impact of nonlocal spatial correlations
Marvin Leusch, Alessandro Toschi, Andreas Hausoel +2
We analyze the impact of the lattice geometry on the thermodynamic transition to magnetically ordered phases in strongly interacting electron systems for various Bravais lattices i…
Superconducting phase diagram of finite-layer nickelates NdNiO
Andreas Hausoel, Simone Di Cataldo, Motoharu Kitatani +2
Following the successful prediction of the superconducting phase diagram for infinite-layer nickelates, here we calculate the superconducting vs. the number of lay…
Aberration of the Green's function estimator in hybridization expansion continuous-time quantum Monte Carlo
Andreas Hausoel, Markus Wallerberger, Josef Kaufmann +2
We describe an aberration of the resampling estimator for the Green's function customarily used in hybridization expansion continuous-time quantum Monte Carlo. It occurs due to Pau…
Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study
D. Geffroy, J. Kaufmann, A. Hariki +3
We present a dynamical mean-field study of dynamical susceptibilities in two-band Hubbard model. Varying the model parameters we analyze the two-particle excitations in the normal…
State- and superstate-sampling in hybridization-expansion continuous-time quantum Monte Carlo
Alexander Kowalski, Andreas Hausoel, Markus Wallerberger +2
Due to the intrinsic complexity of the quantum many-body problem, quantum Monte Carlo algorithms and their corresponding Monte Carlo configurations can be defined in various ways.…
w2dynamics: Local one- and two-particle quantities from dynamical mean field theory
Markus Wallerberger, Andreas Hausoel, Patrik Gunacker +5
We describe the hybridization-expansion continuous-time quantum Monte Carlo code package "w2dynamics", developed in Wien and Würzburg. We discuss the main features of this multi-or…
Local magnetic moments in iron and nickel at ambient and Earth's core conditions
A. Hausoel, M. Karolak, E. Sasioglu +5
Some Bravais lattices have a particular geometry that can slow down the motion of Bloch electrons by pre-localization due to the band-structure properties. Another known source of…
DFT+DMFT study on soft moment magnetism and covalent bonding in SrRuO
Atsushi Hariki, Andreas Hausoel, Giorgio Sangiovanni +1
Dynamical mean-field theory is used to study the three orbital model of the compound SrRuO both with and without explicitly including the O- states. Depending on t…
Strongly correlated double Dirac fermions
Domenico Di Sante, Andreas Hausoel, Paolo Barone +3
Double Dirac fermions have recently been identified as possible quasiparticles hosted by three-dimensional crystals with particular non-symmorphic point group symmetries. Applying…
Worm Improved Estimators in Continuous-time Quantum Monte Carlo
Patrik Gunacker, Markus Wallerberger, Tin Ribic +3
We derive the improved estimators for general interactions and employ these for the continuous-time quantum Monte Carlo method. Using a worm algorithm we show how measuring higher-…
Continuous-time Quantum Monte Carlo using Worm Sampling
Patrik Gunacker, Markus Wallerberger, Emanuel Gull +3
We present a worm sampling method for calculating one- and two-particle Green's functions using continuous-time quantum Monte Carlo simulations in the hybridization expansion (CT-H…