Correlation detectors Quantum theory 6 Correlation matrix 4 Dinger equation 4 Electronic correlation effects 4 G-matrix 4 Mathematical operators 4 Matrix algebra 4 Reduced-density matrix 4 contracted Schrödinger equation 4 correlation matrix 4 electronic correlation effects 4 reduced density matrix 4 Algebraic structures 2 Analytical expressions 2 Anti-hermitian contracted schrödinger equation 2 Beryllium 2 Computational efficiency 2 Computational investigation 2 Contracted schrodinger equation 2 Correlation effect 2 Correlation methods 2 Cumulants 2 Density matrix 2 Density-functional level 2 Diffusing particles 2 Electron correlation contribution 2 Electron correlation effect 2 Electron correlations 2 Equations of state 2