Hybrid coupled cluster methods: Combining active space coupled cluster methods with coupled cluster singles, doubles, and perturbative triples

Z Kou, J Shen, E Xu, S Li - The Journal of Chemical Physics, 2012 - pubs.aip.org
Hybrid coupled cluster methods: Combining active space coupled cluster methods with coupled
cluster singles, doubles, and perturbative triples | The Journal of Chemical Physics | AIP …

A simplified account of the correlation effects to bond breaking processes: The Brillouin-Wigner perturbation theory using a multireference formulation

S Manna, SS Ray, S Chattopadhyay… - The Journal of …, 2019 - pubs.aip.org
Adaptation of improved virtual orbital complete active space configuration interaction
functions in state-specific multireference perturbation theory motivated by the Brillouin …

Combined complete active space configuration interaction and perturbation theory applied to conformational energy prototypes: Rotation and inversion barriers

SS Ray, US Mahapatra, RK Chaudhuri… - Computational and …, 2017 - Elsevier
A second-order multireference perturbation theory, termed as IVO-SSMRPT which allows
the use of CASCI reference wave functions with improved virtual orbitals (IVO) for capturing …

Hybrid Coupled Cluster Methods Based on the Split Virtual Orbitals: Barrier Heights of Reactions and Spectroscopic Constants of Open-Shell Diatomic Molecules

Z Kou, J Shen, E Xu, S Li - The Journal of Physical Chemistry A, 2013 - ACS Publications
We report an efficient implementation of the coupled cluster (CC) singles, doubles, and a
hybrid treatment of triples based on the split virtual orbitals (SVO-CCSD (T)-h) method [J …