Back to search

Cluster expansion of the wavefunction. Symmetry-adapted-cluster expansion, its variational determination, and extension of open-shell orbital theory

Data up to Jan 2025

Published1978
Citations645
References49

Total Citations Per Year

Abstract

References (49)

On the Correlation Problem in Atomic and Molecular Systems. Calculation of Wavefunction Components in Ursell-Type Expansion Using Quantum-Field Theoretical Methods

1966 • 2,892 citations

Self-Consistent Field Theory for Open Shells of Electronic Systems

1960 • 1,927 citations

Short-range correlations in nuclear wave functions

1960 • 1,194 citations

Bound states of a many-particle system

1958 • 1,061 citations

Equations-of-Motion Method and the Extended Shell Model

1968 • 1,059 citations

Correlation Problems in Atomic and Molecular Systems. IV. Extended Coupled-Pair Many-Electron Theory and Its Application to the B<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">H</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Molecule

1972 • 869 citations

Stability conditions and nuclear rotations in the Hartree-Fock theory

1960 • 818 citations

Correlation problems in atomic and molecular systems III. Rederivation of the coupled‐pair many‐electron theory using the traditional quantum chemical methodst

1971 • 625 citations

Stability Conditions for the Solutions of the Hartree—Fock Equations for Atomic and Molecular Systems. Application to the Pi-Electron Model of Cyclic Polyenes

1967 • 587 citations

Vibrational states of nuclei in the random phase approximation

1961 • 571 citations

Many-Electron Theory of Atoms and Molecules. I. Shells, Electron Pairs vs Many-Electron Correlations

1962 • 523 citations

Time-Independent Diagrammatic Approach to Perturbation Theory of Fermion Systems

1975 • 496 citations

Quantum Theory of Many-Particle Systems. II. Study of the Ordinary Hartree-Fock Approximation

1955 • 448 citations

Correlation problem in open-shell atoms and molecules

1975 • 306 citations

Alternant molecular orbital method

1967 • 277 citations

Unrestricted Hartree—Fock Calculations. I. An Improved Method of Computing Spin Properties

1964 • 237 citations

Higher Random-Phase Approximation as an Approximation to the Equations of Motion

1970 • 225 citations

Theory of Atomic Structure Including Electron Correlation. I. Three Kinds of Correlation in Ground and Excited Configurations

1969 • 222 citations

Many-Electron Theory of Nonclosed-Shell Atoms and Molecules. I. Orbital Wavefunction and Perturbation Theory

1966 • 203 citations

General SCF operator satisfying correct variational condition

1973 • 165 citations

Natural Expansion of the First‐Order Density Matrix for a Spin‐Projected Single Determinant

1964 • 162 citations

Modern quantum chemistry : Istanbul lectures

1965 • 158 citations

Spin-restricted open-shell self-consistent-field theory

1973 • 146 citations

Cluster expansion analysis for delocalized systems

1969 • 145 citations

Equations-of-motion method including renormalization and double-excitation mixing

1973 • 134 citations

Theory of Atomic Structure Including Electron Correlation. III. Calculations of Multiplet Oscillator Strengths and Comparisons with Experiments for CII, NI, NII, NIII, OII, OIII, OIV, FII, NeII, and NaIII

1969 • 125 citations

Cluster expansion of the wavefunction. Pseduo-orbital theory applied to spin correlation

1977 • 116 citations

Improved Quantum Theory of Many-Electron Systems. III. The GF Method

1968 • 102 citations

Spin Density Wave and Charge Transfer Wave in Long Conjugated Molecules*

1968 • 99 citations

Spin-Component Analysis of Single-Determinant Wavefunctions

1963 • 98 citations

On the coupling operator method

1974 • 82 citations

Many-Electron Theory of Atoms and Molecules. III. Effect of Correlation on Orbitals

1963 • 79 citations

Core Polarization and Hyperfine Structure of the B, C, N, O, and F Atoms

1969 • 69 citations

Spin-Projected and Extended SCF Calculations

1967 • 64 citations

Wavefunctions and Correlation Energies for Two-, Three-, and Four-Electron Atoms

1968 • 64 citations

Variational approach to the many-body problem

1965 • 64 citations

What is the best expression of the second-order sum-over-state perturbation energy based on the Hartree-Fock wavefunction?

1974 • 64 citations

On the Unrestricted Hartree–Fock Wavefunction

1969 • 62 citations

Theory of the Unrestricted Hartree-Fock Equation and Its Solutions. I

1971 • 53 citations

Spin projection of single-determinant wavefunctions

1974 • 37 citations

On the orbital theories in the spin-correlation problems. II. Unrestricted and spin-extended Hartree-Fock theories

1973 • 37 citations

An equations of motion approach for open shell systems

1975 • 24 citations

Cluster expansion of operator averages for systems of many particles

1963 • 23 citations

The effect of symmetry restrictions upon the hyperfine properties

1971 • 22 citations

Comparative Study of the Random-Phase Approximation, Hartree-Fock and Single Excited Configuration-Interaction Methods of Computing Excitation Properties of Some Molecules

1972 • 21 citations

Variational localized-site cluster expansions. I. General theory

1976 • 18 citations

Variational localized-site cluster expansions

1976 • 17 citations

Variational localized-site cluster expansions. II. Trees and near trees

1976 • 8 citations

Variational localized-site cluster expansions

1976 • 7 citations

Cited By (0)

Loading...