[HTML][HTML] Rationale for the extrapolation procedure in selected configuration interaction
Selected configuration interaction (SCI) methods have emerged as state-of-the-art
methodologies for achieving high accuracy and generating benchmark reference data for …
methodologies for achieving high accuracy and generating benchmark reference data for …
Can GW handle multireference systems?
Due to the infinite summation of bubble diagrams, the GW approximation of Green's function
perturbation theory has proven particularly effective in the weak correlation regime, where …
perturbation theory has proven particularly effective in the weak correlation regime, where …
A regularized second-order correlation method from Green's function theory
We present a scalable single-particle framework to treat electronic correlation in molecules
and materials motivated by Green's function theory. We derive a size-extensive Brillouin …
and materials motivated by Green's function theory. We derive a size-extensive Brillouin …
[HTML][HTML] Unphysical discontinuities, intruder states and regularization in GW methods
By recasting the non-linear frequency-dependent GW quasiparticle equation into a linear
eigenvalue problem, we explain the appearance of multiple solutions and unphysical …
eigenvalue problem, we explain the appearance of multiple solutions and unphysical …
Accurate full configuration interaction correlation energy estimates for five-and six-membered rings
Following our recent work on the benzene molecule [P.-F. Loos, Y. Damour, and A.
Scemama, J. Chem. Phys. 153, 176101 (2020)], motivated by the blind challenge of Eriksen …
Scemama, J. Chem. Phys. 153, 176101 (2020)], motivated by the blind challenge of Eriksen …
General properties of fidelity in non-Hermitian quantum systems with PT symmetry
The fidelity susceptibility is a tool for studying quantum phase transitions in the Hermitian
condensed matter systems. Recently, it has been generalized with the biorthogonal basis for …
condensed matter systems. Recently, it has been generalized with the biorthogonal basis for …
Noncovalent interactions from models for the Møller–Plesset adiabatic connection
Given the omnipresence of noncovalent interactions (NCIs), their accurate simulations are of
crucial importance across various scientific disciplines. Here we construct accurate models …
crucial importance across various scientific disciplines. Here we construct accurate models …
Symmetry protected exceptional points of interacting fermions
Non-Hermitian quantum systems can exhibit spectral degeneracies known as exceptional
points, where two or more eigenvectors coalesce, leading to a nondiagonalizable Jordan …
points, where two or more eigenvectors coalesce, leading to a nondiagonalizable Jordan …
Benchmarking CASPT3 vertical excitation energies
M Boggio-Pasqua, D Jacquemin… - The Journal of Chemical …, 2022 - pubs.aip.org
Based on 280 reference vertical transition energies of various excited states (singlet, triplet,
valence, Rydberg, n→ π*, π→ π*, and double excitations) extracted from the QUEST …
valence, Rydberg, n→ π*, π→ π*, and double excitations) extracted from the QUEST …
More quantum chemistry with fewer qubits
Quantum computation is one of the most promising new paradigms for the simulation of
physical systems composed of electrons and atomic nuclei, with applications in chemistry …
physical systems composed of electrons and atomic nuclei, with applications in chemistry …