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 …

Relativistic Fully Self-Consistent GW for Molecules: Total Energies and Ionization Potentials

V Abraham, G Harsha, D Zgid - Journal of Chemical Theory and …, 2024 - ACS Publications
The fully self-consistent GW (sc GW) method with an iterative solution of the Dyson equation
provides a consistent approach for describing the ground and excited states without any …

Relativistic real-time time-dependent equation-of-motion coupled-cluster

LN Koulias, DB Williams-Young… - Journal of chemical …, 2019 - ACS Publications
We present a relativistic time-dependent equation-of-motion coupled-cluster with single and
double excitations (TD-EOM-CCSD) formalism. Unlike other explicitly time-dependent …

Two-component noncollinear time-dependent spin density functional theory for excited state calculations

F Egidi, S Sun, JJ Goings, G Scalmani… - Journal of Chemical …, 2017 - ACS Publications
We present a linear response formalism for the description of the electronic excitations of a
noncollinear reference defined via Kohn–Sham spin density functional methods. A set of …

An efficient implementation of two-component relativistic density functional theory with torque-free auxiliary variables

A Petrone, DB Williams-Young, S Sun… - The European Physical …, 2018 - Springer
An integration and assembly strategy for efficient evaluation of the exchange correlation
term in relativistic density functional theory within two-component Kohn–Sham framework is …

Symmetric post-transition state bifurcation reactions with Berry pseudomagnetic fields

Z Tao, T Qiu, JE Subotnik - The Journal of Physical Chemistry …, 2023 - ACS Publications
We investigate how the Berry force (ie, the pseudomagnetic force operating on nuclei as
induced by electronic degeneracy and spin–orbit coupling (SOC)) might modify a post …

Direct atomic-orbital-based relativistic two-component linear response method for calculating excited-state fine structures

F Egidi, JJ Goings, MJ Frisch, X Li - Journal of chemical theory …, 2016 - ACS Publications
In this work, we present a linear-response formalism of the complex two-component Hartree–
Fock Hamiltonian that includes relativistic effects within the Douglas–Kroll–Hess and the …

[HTML][HTML] Determination of the SmO+ bond energy by threshold photodissociation of the cryogenically cooled ion

A Lachowicz, EH Perez, NS Shuman, SG Ard… - The Journal of …, 2021 - pubs.aip.org
The SmO+ bond energy has been measured by monitoring the threshold for
photodissociation of the cryogenically cooled ion. The action spectrum features a very sharp …

Energy landscapes for electronic structure

HGA Burton, DJ Wales - Journal of Chemical Theory and …, 2020 - ACS Publications
Orbital-optimized multiple self-consistent-field (SCF) solutions are increasingly being
interpreted as mean-field approximations of diabatic or excited electronic states. However …

Generalized Hartree–Fock with nonperturbative treatment of strong magnetic fields: Application to molecular spin phase transitions

S Sun, DB Williams-Young, TF Stetina… - Journal of Chemical …, 2018 - ACS Publications
In this work, we present a framework of an ab initio variational approach to effectively
explore electronic spin phase transitions in molecular systems inside of a homogeneous …