Real-time time-dependent electronic structure theory

X Li, N Govind, C Isborn, AE DePrince III… - Chemical …, 2020 - ACS Publications
Real-time electronic structure methods provide an unprecedented view of electron dynamics
and ultrafast spectroscopy on the atto-and femtosecond time scale with vast potential to yield …

The Chronus quantum software package

DB Williams‐Young, A Petrone, S Sun… - Wiley …, 2020 - Wiley Online Library
Abstract The Chronus Quantum (ChronusQ) software package is an open source (under the
GNU General Public License v2) software infrastructure which targets the solution of …

An improved seminumerical Coulomb and exchange algorithm for properties and excited states in modern density functional theory

C Holzer - The Journal of Chemical Physics, 2020 - pubs.aip.org
A seminumerical algorithm capable of performing large-scale (time-dependent) density
functional theory (TD-DFT) calculations to extract excitation energies and other ground-state …

[HTML][HTML] Current density functional framework for spin–orbit coupling

C Holzer, YJ Franzke, A Pausch - The Journal of Chemical Physics, 2022 - pubs.aip.org
Relativistic two-component density functional calculations are carried out in a non-collinear
formalism to describe spin–orbit interactions, where the exchange–correlation functional is …

Atomic mean-field approach within exact two-component theory based on the Dirac–Coulomb–Breit Hamiltonian

C Zhang, L Cheng - The Journal of Physical Chemistry A, 2022 - ACS Publications
An extension of the exact two-component theory with atomic mean-field integrals (the
X2CAMF scheme) to the treatment of the Breit term together with efficient implementation …

Origins of electromagnetic radiation from spintronic terahertz emitters: A time-dependent density functional theory plus Jefimenko equations approach

A Kefayati, BK Nikolić - Physical Review Letters, 2024 - APS
Microscopic origins of charge currents and electromagnetic (EM) radiation generated by
them in spintronic THz emitters—such as, femtosecond laser pulse-driven single magnetic …

Exact-two-component relativistic multireference second-order perturbation theory

L Lu, H Hu, AJ Jenkins, X Li - Journal of Chemical Theory and …, 2022 - ACS Publications
As the relativistic corrections become stronger for late-row elements, the fully perturbative
treatment of spin–orbit coupling and dynamic correlation may become inadequate for …

An atomic mean-field spin-orbit approach within exact two-component theory for a non-perturbative treatment of spin-orbit coupling

J Liu, L Cheng - The Journal of Chemical Physics, 2018 - pubs.aip.org
An atomic mean-field (AMF) spin-orbit (SO) approach within exact two-component theory
(X2C) is reported, thereby exploiting the exact decoupling scheme of X2C, the one-electron …

Ionized, electron-attached, and excited states of molecular systems with spin–orbit coupling: Two-component GW and Bethe–Salpeter implementations

C Holzer, W Klopper - The Journal of Chemical Physics, 2019 - pubs.aip.org
We have implemented and applied the GW method and the static screened Bethe–Salpeter
equation (BSE) for calculating linear-response properties for quasirelativistic molecular …

Improving One-Electron Exact-Two-Component Relativistic Methods with the Dirac–Coulomb–Breit-Parameterized Effective Spin–Orbit Coupling

J Ehrman, E Martinez-Baez, AJ Jenkins… - Journal of Chemical …, 2023 - ACS Publications
In photochemical processes, spin–orbit coupling plays a crucial role in determining the
outcome of the reaction. However, the exact treatment of the Dirac–Coulomb–Breit two …