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 …

Strong coupling in chiral cavities: nonperturbative framework for enantiomer discrimination

RR Riso, L Grazioli, E Ronca, T Giovannini, H Koch - Physical Review X, 2023 - APS
The development of efficient techniques to distinguish mirror images of chiral molecules
(enantiomers) is very important in both chemistry and physics. Enantiomers share most …

Polariton ring currents and circular dichroism of Mg-porphyrin in a chiral cavity

S Sun, B Gu, S Mukamel - Chemical Science, 2022 - pubs.rsc.org
By placing Mg-porphyrin molecules in a chiral optical cavity, time reversal symmetry is
broken, and polariton ring currents can be generated with linearly polarized light, resulting in …

Direct Probe of Conical Intersection Photochemistry by Time-Resolved X-ray Magnetic Circular Dichroism

S Sun, B Gu, H Hu, L Lu, D Tang… - Journal of the …, 2024 - ACS Publications
The direct probing of photochemical dynamics by detecting the electronic coherence
generated during passage through conical intersections is an intriguing challenge. The …

Relativistic Kramers-unrestricted exact-two-component density matrix renormalization group

CE Hoyer, H Hu, L Lu, S Knecht… - The Journal of Physical …, 2022 - ACS Publications
In this work we develop a variational relativistic density matrix renormalization group
(DMRG) approach within the exact-two-component (X2C) framework (X2C-DMRG), using …

Comparison of length, velocity, and symmetric gauges for the calculation of absorption and electric circular dichroism spectra with real-time time-dependent density …

J Mattiat, S Luber - Journal of Chemical Theory and Computation, 2022 - ACS Publications
A velocity and symmetric gauge implementation for real-time time-dependent density
functional theory (RT-TDDFT) in the CP2K package using a Gaussian and plane wave …

Modeling ultrafast electron dynamics in strong magnetic fields using real-time time-dependent electronic structure methods

M Wibowo, TJP Irons, AM Teale - Journal of Chemical Theory and …, 2021 - ACS Publications
An implementation of real-time time-dependent Hartree–Fock (RT-TDHF) and current
density functional theory (RT-TDCDFT) for molecules in strong uniform magnetic fields is …

Optimizing molecular geometries in strong magnetic fields

TJP Irons, G David, AM Teale - Journal of Chemical Theory and …, 2021 - ACS Publications
An efficient implementation of geometrical derivatives at the Hartree–Fock (HF) and current-
density functional theory (CDFT) levels is presented for the study of molecular structure in …

Efficient Four-Component Dirac–Coulomb–Gaunt Hartree–Fock in the Pauli Spinor Representation

S Sun, TF Stetina, T Zhang, H Hu… - Journal of Chemical …, 2021 - ACS Publications
Four-component Dirac–Hartree–Fock is an accurate mean-field method for treating
molecular systems where relativistic effects are important. However, the computational cost …