Electro-thermal transport in disordered nanostructures: a modeling perspective

F Ducry, J Aeschlimann, M Luisier - Nanoscale Advances, 2020 - pubs.rsc.org
Following the emergence of novel classes of atomic systems with amorphous active regions,
device simulations had to rapidly evolve to devise strategies to account for the influence of …

Charge Separation in Donor–C60 Complexes with Real-Time Green Functions: The Importance of Nonlocal Correlations

EV Bostrom, A Mikkelsen, C Verdozzi, E Perfetto… - Nano …, 2018 - ACS Publications
We use the nonequilibrium Green function (NEGF) method to perform real-time simulations
of the ultrafast electron dynamics of photoexcited donor–C60 complexes modeled by a …

[HTML][HTML] Real-time non-adiabatic dynamics in the one-dimensional Holstein model: Trajectory-based vs exact methods

M ten Brink, S Gräber, M Hopjan, D Jansen… - The Journal of …, 2022 - pubs.aip.org
We benchmark a set of quantum-chemistry methods, including multitrajectory Ehrenfest,
fewest-switches surface-hop**, and multiconfigurational-Ehrenfest dynamics, against …

Molecular junctions and molecular motors: Including Coulomb repulsion in electronic friction using nonequilibrium Green's functions

M Hopjan, G Stefanucci, E Perfetto, C Verdozzi - Physical Review B, 2018 - APS
We present a theory of molecular motors based on the Ehrenfest dynamics for nuclear
coordinates and the adiabatic limit of the Kadanoff-Baym equations for current-induced …

Steering magnetic skyrmions with currents: A nonequilibrium Green's functions approach

E Viñas Boström, C Verdozzi - physica status solidi (b), 2019 - Wiley Online Library
Magnetic skyrmions, topologically protected vortex‐like configurations in spin textures, are of
wide conceptual and practical appeal, notably in relation to the making of so‐called race …

Time‐Resolved Optical Response of the Dicke's Model via the Nonequilibrium Green's Function Approach

M Gopalakrishna, Y Pavlyukh… - physica status solidi …, 2024 - Wiley Online Library
Due to their conceptual appeal and computational convenience, two‐level systems (TLSs)
and generalizations are used to investigate nonlinear behavior in quantum optics and …

Time-resolved multiphoton effects in the fluorescence spectra of two-level systems at rest and in motion

E Viñas Boström, A D'Andrea, M Cini, C Verdozzi - Physical Review A, 2020 - APS
We study the time-resolved fluorescence spectrum in two-level systems interacting with an
incident coherent field, both in the weak and intermediate coupling regimes. For a single two …

Nonequilibrium green functions simulations on the next level: theoretical advances and applications to finite lattice systems

N Schlünzen - 2021 - macau.uni-kiel.de
This thesis is devoted to the description of correlated finite lattice systems under
nonequilibrium conditions. In this context, the lack of small parameters in the corresponding …

Green Functions Approach to Graphene Nanostructures

JP Joost - 2022 - macau.uni-kiel.de
In my eleven years as a Bachelor, Master and finally PhD student I sometimes found it hard
to follow every line of thought that more experienced physicists presented in their newest …

Steering Magnetic Skyrmions with Nonequilibrium Green's Functions

EV Boström, C Verdozzi - arxiv preprint arxiv:1810.06212, 2018 - arxiv.org
Magnetic skyrmions, topologically protected vortex-like configurations in spin textures, are of
wide conceptual and practical appeal for quantum information technologies, notably in …