Accelerating Nonequilibrium Green Functions Simulations: The G1–G2 Scheme and Beyond

M Bonitz, JP Joost, C Makait, E Schroedter… - … status solidi (b), 2024 - Wiley Online Library
The theory of nonequilibrium Green functions (NEGF) has seen a rapid development over
the recent three decades. Applications include diverse correlated many‐body systems in …

Dynamically screened ladder approximation: Simultaneous treatment of strong electronic correlations and dynamical screening out of equilibrium

JP Joost, N Schlünzen, H Ohldag, M Bonitz, F Lackner… - Physical Review B, 2022 - APS
Dynamical screening is a key property of charged many-particle systems. Its theoretical
description is based on the GW approximation that is extensively applied for ground-state …

Interacting symmetry-protected topological phases out of equilibrium

M McGinley, NR Cooper - Physical Review Research, 2019 - APS
The topological features of quantum many-body wave functions are known to have profound
consequences for the physics of ground-states and their low-energy excitations. We …

Two relativistic Kondo effects: Classification with particle and antiparticle impurities

Y Araki, D Suenaga, K Suzuki, S Yasui - Physical Review Research, 2021 - APS
We investigate two different types of relativistic Kondo effects, distinguished by heavy-
impurity degrees of freedom, by focusing on the energy-momentum dispersion relations of …

Understanding one-dimensional topological Kondo insulator: poor man's non-uniform antiferromagnetic mean-field theory versus quantum Monte Carlo simulation

Y Zhong - The European Physical Journal B, 2019 - Springer
Topological Kondo insulator (TKI) is an essential example of interacting topological
insulator, where electron's correlation effect plays a key role. However, most of our …

[PDF][PDF] Two relativistic Kondo effects from two HQETs

Y Araki, D Suenaga, K Suzuki… - arxiv preprint arxiv …, 2020 - researchgate.net
We investigate two different types of relativistic Kondo effects, distinguished by heavy-
impurity degrees of freedom, by focusing on the energy-momentum dispersion relations of …