activity
20162024
most citedElectronic Excitations in Complex Molecular Environments: Many-Body Green's Functions Theory in VOTCA-XTP

51 citations · 173 across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.mtrl-sci2024

Synergistic Interface Effects in Composite Dielectrics: Insights into Charge Trapping Regulation through Multiscale Modeling

Haoxiang Zhao, Lixuan An, Daning Zhang +5

The rapid development of modern energy applications drives an urgent need to enhance the dielectric strength of energy storage dielectrics for higher power density. Interface desig…

physics.comp-ph2020★ 1 cited

A Kernel-based Machine Learning Approach to Computing Quasiparticle Energies within Many-Body Green's Functions Theory

Gianluca Tirimbó, Onur Çaylak, Björn Baumeier

We present a Kernel Ridge Regression (KRR) based supervised learning method combined with Genetic Algorithms (GAs) for the calculation of quasiparticle energies within Many-Body Gr…

math.AP2020

Existence and uniqueness of solutions to the time-dependent Kohn-Sham equations coupled with classical nuclear dynamics

Björn Baumeier, Onur Çaylak, Carlo Mercuri +3

We prove existence and uniqueness of solutions to the initial-value problem associated with a class of time-dependent Kohn-Sham equations coupled with Newtonian nuclear dynamics. W…

cond-mat.stat-mech2020★ 9 cited

Glassy dynamics from generalized mode-coupling theory: existence and uniqueness of solutions for hierarchically coupled integro-differential equations

Rutger A. Biezemans, Simone Ciarella, Onur Çaylak +2

Generalized mode-coupling theory (GMCT) is a first-principles-based and systematically correctable framework to predict the complex relaxation dynamics of glass-forming materials.…

cond-mat.soft2020★ 11 cited

Jamming and force distribution in growing epithelial tissue

Pranav Madhikar, Jan Åström, Björn Baumeier +1

We investigate morphologies of proliferating cellular tissues using a newly developed numerical simulation model for mechanical cell division and migration in 2D. The model is appl…

physics.chem-ph2020★ 16 cited

Wasserstein metric for improved QML with adjacency matrix representations

Onur Çaylak, O. Anatole von Lilienfeld, Björn Baumeier

We study the Wasserstein metric to measure distances between molecules represented by the atom index dependent adjacency "Coulomb" matrix, used in kernel ridge regression based sup…

cond-mat.mtrl-sci2019★ 22 cited

Quantitative Predictions of Photoelectron Spectra in Amorphous Molecular Solids from Multiscale Quasiparticle Embedding

Gianluca Tirimbo, Xander de Vries, Christ H. L. Weijtens +3

We present a first-principles-based multiscale simulation framework for quantitative predictions of the high-energy part of the Ultraviolet Photoelectron Spectroscopy (UPS) spectra…

cond-mat.soft2018★ 1 cited

Morphology of Proliferating Epithelial Cellular Tissue

Pranav Madhikar, Jan Åström, Björn Baumeier +1

We investigate morphologies of proliferating cellular tissue using a newly developed numerical simulation model for mechanical cell division. The model reproduces structures of sim…

physics.comp-ph2018★ 51 cited

Electronic Excitations in Complex Molecular Environments: Many-Body Green's Functions Theory in VOTCA-XTP

Jens Wehner, Lothar Brombacher, Joshua Brown +6

Many-body Green's functions theory within the GW approximation and the Bethe-Salpeter Equation (BSE) is implemented in the open-source VOTCA-XTP software, aiming at the calculation…

cond-mat.soft2018★ 43 cited

Improved general-purpose five-point model for water: TIP5P/2018

Yuriy Khalak, Bjoern Baumeier, Mikko Karttunen

A new five point potential for liquid water, TIP5P/2018, is presented along with the techniques used to derive its charges from ab initio per-molecule electrostatic potentials in t…

cond-mat.mes-hall2016★ 11 cited

Getting excited: Challenges in quantum-classical studies of excitons in polymeric systems

Behnaz Bagheri, Björn Baumeier, Mikko Karttunen

A combination of classical molecular dynamics (MM/MD) and quantum chemical calculations based on the density functional theory (DFT) was performed to describe conformational proper…

cond-mat.mtrl-sci2016★ 8 cited

Solvent effects on optical excitations of poly para phenylene ethynylene studied by QM/MM simulations based on Many-Body Green's Functions Theory

Behnaz Bagheri, Mikko Karttunen, Björn Baumeier

Electronic excitations in dilute solutions of poly para phenylene ethynylene (poly-PPE) are studied using a QM/MM approach combining many-body Green's functions theory within the $…