[HTML][HTML] The density matrix renormalization group in chemistry and molecular physics: Recent developments and new challenges

A Baiardi, M Reiher - The Journal of Chemical Physics, 2020 - pubs.aip.org
In the past two decades, the density matrix renormalization group (DMRG) has emerged as
an innovative new method in quantum chemistry relying on a theoretical framework very …

Single-and multireference electronic structure calculations for constructing potential energy surfaces

R Dawes, SA Ndengué - International Reviews in Physical …, 2016 - Taylor & Francis
Recent developments in single and multireference electronic structure methods and the
approaches suitable to generate ab initio data that may be employed in the construction of …

Second-order self-consistent-field density-matrix renormalization group

Y Ma, S Knecht, S Keller, M Reiher - Journal of chemical theory …, 2017 - ACS Publications
We present a matrix-product state (MPS)-based quadratically convergent density-matrix
renormalization group self-consistent-field (DMRG-SCF) approach. Following a proposal by …

Richardson–Gaudin mean-field for strong correlation in quantum chemistry

PA Johnson, CÉ Fecteau, F Berthiaume… - The Journal of …, 2020 - pubs.aip.org
Ground state eigenvectors of the reduced Bardeen–Cooper–Schrieffer Hamiltonian are
employed as a wavefunction Ansatz to model strong electron correlation in quantum …

DMRG-CASPT2 study of the longitudinal static second hyperpolarizability of all-trans polyenes

S Wouters, V Van Speybroeck… - The Journal of chemical …, 2016 - pubs.aip.org
We have implemented internally contracted complete active space second order
perturbation theory (CASPT2) with the density matrix renormalization group (DMRG) as …

Multistate complete-active-space second-order perturbation theory based on density matrix renormalization group reference states

T Yanai, M Saitow, XG ** algorithm for ordering of degrees of freedom in density matrix renormalization group
W Li, J Ren, H Yang, Z Shuai - Journal of Physics: Condensed …, 2022 - iopscience.iop.org
Density matrix renormalization group (DMRG) and its time-dependent variants have found
widespread applications in quantum chemistry, including ab initio electronic structure of …

Benchmarks for electronically excited states with CASSCF methods

B Helmich-Paris - Journal of Chemical Theory and Computation, 2019 - ACS Publications
The accuracy of three different complete active space (CAS) self-consistent field (CASSCF)
methods is investigated for the electronically excited-state benchmark set of Schreiber, M.; et …