Stochastic vector techniques in ground-state electronic structure

R Baer, D Neuhauser, E Rabani - Annual Review of Physical …, 2022 - annualreviews.org
We review a suite of stochastic vector computational approaches for studying the electronic
structure of extended condensed matter systems. These techniques help reduce algorithmic …

Fast and universal Kohn-Sham density functional theory algorithm for warm dense matter to hot dense plasma

AJ White, LA Collins - Physical review letters, 2020 - APS
Understanding many processes, eg, fusion experiments, planetary interiors, and dwarf stars,
depends strongly on microscopic physics modeling of warm dense matter and hot dense …

Mixed stochastic-deterministic time-dependent density functional theory: application to stop** power of warm dense carbon

AJ White, LA Collins, K Nichols… - Journal of Physics …, 2022 - iopscience.iop.org
Warm dense matter (WDM) describes an intermediate phase, between condensed matter
and classical plasmas, found in natural and man-made systems. In a laboratory setting …

Density embedding method for nanoscale molecule–metal interfaces

X Shao, W Mi, M Pavanello - The Journal of Physical Chemistry …, 2022 - ACS Publications
In this work, we extend the applicability of standard Kohn–Sham DFT (KS-DFT) to model
realistically sized molecule–metal interfaces where the metal slabs venture into the tens of …

Plane-wave-based stochastic-deterministic density functional theory for extended systems

Q Liu, M Chen - Physical Review B, 2022 - APS
Traditional finite-temperature Kohn-Sham density functional theory (KSDFT) based on the
diagonalization (DG) method has an unfavorable scaling with respect to the electron number …

Stochastic density functional theory combined with Langevin dynamics for warm dense matter

RE Hadad, A Roy, E Rabani, R Redmer, R Baer - Physical Review E, 2024 - APS
This study overviews and extends a recently developed stochastic finite-temperature Kohn-
Sham density functional theory to study warm dense matter using Langevin dynamics …

Reduced scaling of optimal regional orbital localization via sequential exhaustion of the single-particle space

G Weng, M Romanova, A Apelian… - Journal of Chemical …, 2022 - ACS Publications
Wannier functions have become a powerful tool in the electronic structure calculations of
extended systems. The generalized Pipek-Mezey Wannier functions exhibit appealing …

[HTML][HTML] Stochastic density functional theory: Real-and energy-space fragmentation for noise reduction

M Chen, R Baer, D Neuhauser… - The Journal of chemical …, 2021 - pubs.aip.org
Stochastic density functional theory (sDFT) is becoming a valuable tool for studying ground-
state properties of extended materials. The computational complexity of describing the Kohn …

Forces from stochastic density functional theory under nonorthogonal atom-centered basis sets

B Shpiro, MD Fabian, E Rabani… - Journal of Chemical …, 2022 - ACS Publications
We develop a formalism for calculating forces on the nuclei within the linear-scaling
stochastic density functional theory (sDFT) in a nonorthogonal atom-centered basis set …

Linear weak scalability of density functional theory calculations without imposing electron localization

MD Fabian, B Shpiro, R Baer - Journal of Chemical Theory and …, 2022 - ACS Publications
Linear scaling density functional theory (DFT) approaches to the electronic structure of
materials are often based on the tendency of electrons to localize in large atomic and …