[HTML][HTML] Robust relativistic many-body Green's function based approaches for assessing core ionized and excited states

M Kehry, W Klopper, C Holzer - The Journal of Chemical Physics, 2023 - pubs.aip.org
A two-component contour deformation (CD) based GW method that employs frequency
sampling to drastically reduce the computational effort when assessing quasiparticle states …

Practical post-Kohn–Sham methods for time-reversal symmetry breaking references

C Holzer - Journal of Chemical Theory and Computation, 2023 - ACS Publications
The applicability of reduced scaling algorithms based on auxiliary subspace methods for the
correlation energy from the random phase approximation (RPA) as well as the correlation …

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 …

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 …

[HTML][HTML] Correlated Dirac–Coulomb–Breit multiconfigurational self-consistent-field methods

CE Hoyer, L Lu, H Hu, KD Shumilov, S Sun… - The Journal of …, 2023 - pubs.aip.org
The fully correlated frequency-independent Dirac–Coulomb–Breit Hamiltonian provides the
most accurate description of electron–electron interaction before going to a genuine …

[HTML][HTML] Current density functional framework for spin–orbit coupling: Extension to periodic systems

YJ Franzke, C Holzer - The Journal of Chemical Physics, 2024 - pubs.aip.org
Spin–orbit coupling induces a current density in the ground state, which consequently
requires a generalization for meta-generalized gradient approximations. That is, the …

Four-component full configuration interaction quantum Monte Carlo for relativistic correlated electron problems

RJ Anderson, GH Booth - The Journal of chemical physics, 2020 - pubs.aip.org
An adaptation of the full configuration interaction quantum Monte Carlo (FCIQMC) method is
presented for correlated electron problems containing heavy elements and the presence of …

Dirac–Coulomb–Breit Molecular Mean-Field Exact-Two-Component Relativistic Equation-of-Motion Coupled-Cluster Theory

T Zhang, S Banerjee, LN Koulias… - The Journal of …, 2024 - ACS Publications
We present a relativistic equation-of-motion coupled-cluster with single and double
excitation formalism within the exact two-component framework (X2C-EOM-CCSD), where …

Efficient treatment of relativistic effects with periodic density functional methods: Energies, gradients, and stress tensors

YJ Franzke, WM Schosser, F Pauly - Physical Review B, 2024 - APS
The implementation of an efficient self-consistent field (SCF) method including both scalar-
relativistic effects and spin-orbit interaction in density functional theory (DFT) is presented …

Development and application of efficient computational methods for molecular spectroscopy in finite magnetic fields

AI Pausch - 2022 - publikationen.bibliothek.kit.edu
Molekülspektroskopie ist ein wichtiges Werkzeug für die Charakterisierung chemischer
Substanzen. Verschiedene Arten von Spektroskopie verwenden die Effekte, die durch …