Computational insights into carbon dots: Evolution of structural models and structure–activity relationships

X Zhao, J Wei, T Song, Z Wang, D Yang… - Chemical Engineering …, 2024 - Elsevier
As researchers have gained a deeper insight into the properties of carbon dots (CDs), their
applications gradually spanned from fluorescent probing and bio-imaging to energy storage …

Linear-response time-dependent density functional theory approach to warm dense matter with adiabatic exchange-correlation kernels

ZA Moldabekov, M Pavanello, MP Böhme… - Physical Review …, 2023 - APS
We present a methodology for the linear-response time-dependent density functional theory
(LR-TDDFT) calculation of the dynamic density response function of warm dense matter in …

Ab Initio Path Integral Monte Carlo Simulations of the Uniform Electron Gas on Large Length Scales

T Dornheim, S Schwalbe, ZA Moldabekov… - The Journal of …, 2024 - ACS Publications
The accurate description of non-ideal quantum many-body systems is of prime importance
for a host of applications within physics, quantum chemistry, materials science, and related …

Assessing the accuracy of hybrid exchange-correlation functionals for the density response of warm dense electrons

ZA Moldabekov, M Lokamani, J Vorberger… - The Journal of …, 2023 - pubs.aip.org
We assess the accuracy of common hybrid exchange-correlation (XC) functionals (PBE0,
PBE0-1/3, HSE06, HSE03, and B3LYP) within the Kohn–Sham density functional theory for …

Averaging over atom snapshots in linear-response TDDFT of disordered systems: A case study of warm dense hydrogen

ZA Moldabekov, J Vorberger, M Lokamani… - The Journal of …, 2023 - pubs.aip.org
Linear-response time-dependent density functional theory (LR-TDDFT) simulations of
disordered extended systems require averaging over different snapshots of ion …

[HTML][HTML] Ab initio density response and local field factor of warm dense hydrogen

T Dornheim, S Schwalbe, P Tolias… - Matter and Radiation …, 2024 - pubs.aip.org
We present quasi-exact ab initio path integral Monte Carlo (PIMC) results for the partial static
density responses and local field factors of hydrogen in the warm dense matter regime, from …

[HTML][HTML] Ab initio path integral Monte Carlo simulations of warm dense two-component systems without fixed nodes: Structural properties

T Dornheim, S Schwalbe, MP Böhme… - The Journal of …, 2024 - pubs.aip.org
We present extensive new ab initio path integral Monte Carlo (PIMC) results for a variety of
structural properties of warm dense hydrogen and beryllium. To deal with the fermion sign …

X-ray Thomson scattering absolute intensity from the f-sum rule in the imaginary-time domain

T Dornheim, T Döppner, AD Baczewski… - arXiv preprint arXiv …, 2023 - arxiv.org
We present a formally exact and simulation-free approach for the normalization of X-ray
Thomson scattering (XRTS) spectra based on the f-sum rule of the imaginary-time …

Imposing correct jellium response is key to predict the density response by orbital-free DFT

ZA Moldabekov, X Shao, M Pavanello, J Vorberger… - Physical Review B, 2023 - APS
Orbital-free density functional theory constitutes a computationally highly effective tool for
modeling electronic structures of systems ranging from room-temperature materials to warm …

Ultrafast Heating-Induced Suppression of d-Band Dominance in the Electronic Excitation Spectrum of Cuprum

Z Moldabekov, TD Gawne, S Schwalbe, TR Preston… - ACS …, 2024 - ACS Publications
The combination of isochoric heating of solids by free-electron lasers (FELs) and in situ
diagnostics by X-ray Thomson scattering (XRTS) allows for measurements of material …