Deep dive into machine learning density functional theory for materials science and chemistry

L Fiedler, K Shah, M Bussmann, A Cangi - Physical Review Materials, 2022 - APS
With the growth of computational resources, the scope of electronic structure simulations has
increased greatly. Artificial intelligence and robust data analysis hold the promise to …

[HTML][HTML] Electronic density response of warm dense matter

T Dornheim, ZA Moldabekov, K Ramakrishna… - Physics of …, 2023 - pubs.aip.org
Matter at extreme temperatures and pressures—commonly known as warm dense matter
(WDM)—is ubiquitous throughout our Universe and occurs in astrophysical objects such as …

[HTML][HTML] Ab initio simulation of warm dense matter

M Bonitz, T Dornheim, ZA Moldabekov, S Zhang… - Physics of …, 2020 - pubs.aip.org
Warm dense matter (WDM)—an exotic state of highly compressed matter—has attracted
increased interest in recent years in astrophysics and for dense laboratory systems. At the …

Ab initio static exchange–correlation kernel across Jacob's ladder without functional derivatives

Z Moldabekov, M Böhme, J Vorberger… - Journal of Chemical …, 2023 - ACS Publications
The electronic exchange─ correlation (XC) kernel constitutes a fundamental input for the
estimation of a gamut of properties such as the dielectric characteristics, the thermal and …

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 …

Analysing the dynamic structure of warm dense matter in the imaginary-time domain: Theoretical models and simulations

T Dornheim, J Vorberger… - … Transactions of the …, 2023 - royalsocietypublishing.org
Rigorous diagnostics of experiments with warm dense matter are notoriously difficult. A key
method is X-ray Thomson scattering (XRTS), but the interpretation of XRTS measurements is …

Bound-state breaking and the importance of thermal exchange–correlation effects in warm dense hydrogen

Z Moldabekov, S Schwalbe, MP Böhme… - Journal of Chemical …, 2023 - ACS Publications
Hydrogen at extreme temperatures and pressures is of key relevance for cutting-edge
technological applications, with inertial confinement fusion research being a prime example …

Non-empirical mixing coefficient for hybrid XC functionals from analysis of the XC kernel

ZA Moldabekov, M Lokamani, J Vorberger… - The Journal of …, 2023 - ACS Publications
We present an analysis of the static exchange-correlation (XC) kernel computed from hybrid
functionals with a single mixing coefficient such as PBE0 and PBE0–1/3. We break down the …

Static Electronic Density Response of Warm Dense Hydrogen: Ab Initio Path Integral Monte Carlo Simulations

M Böhme, ZA Moldabekov, J Vorberger, T Dornheim - Physical Review Letters, 2022 - APS
The properties of hydrogen under extreme conditions are important for many applications,
including inertial confinement fusion and astrophysical models. A key quantity is given by …

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 …