Coupled-cluster methods that include connected quadruple excitations, T4: CCSDTQ-1 and Q(CCSDT)

[1]  J. Cizek.  On the Correlation Problem in Atomic and Molecular Systems. Calculation of Wavefunction Components in Ursell-Type Expansion Using Quantum-Field Theoretical Methods , 1966 .

[2]  Peter R. Taylor,et al.  Unlinked cluster effects in molecular electronic structure. I. The HCN and HNC molecules , 1978 .

[3]  R. Bartlett,et al.  A full coupled‐cluster singles and doubles model: The inclusion of disconnected triples , 1982 .

[4]  R. Bartlett,et al.  A coupled cluster approach with triple excitations , 1984 .

[5]  R. Bartlett,et al.  A study of Be2 with many‐body perturbation theory and a coupled‐cluster method including triple excitations , 1984 .

[6]  S. J. Cole,et al.  Towards a full CCSDT model for electron correlation , 1985 .

[7]  S. J. Cole,et al.  Comparison of MBPT and coupled cluster methods with full CI. II. Polarized basis sets , 1987 .

[8]  R. Bartlett,et al.  The full CCSDT model for molecular electronic structure , 1987 .

[9]  R. Bartlett,et al.  Towards a full CCSDT model for electron correlation. CCSDT-n models , 1987 .

[10]  Henry F. Schaefer,et al.  A new implementation of the full CCSDT model for molecular electronic structure , 1988 .

[11]  Julia E. Rice,et al.  An efficient closed-shell singles and doubles coupled-cluster method , 1988 .

[12]  Curtis L. Janssen,et al.  An efficient reformulation of the closed‐shell coupled cluster single and double excitation (CCSD) equations , 1988 .

[13]  Rodney J. Bartlett,et al.  The expectation value coupled-cluster method and analytical energy derivatives☆ , 1988 .

[14]  Rodney J. Bartlett,et al.  Alternative coupled-cluster ansätze II. The unitary coupled-cluster method , 1989 .

[15]  John D. Watts,et al.  The unitary coupled-cluster approach and molecular properties. Applications of the UCC(4) method , 1989 .

[16]  R. Bartlett,et al.  A coupled‐cluster method that includes connected quadruple excitations , 1989 .

[17]  R. Bartlett.  Coupled-cluster approach to molecular structure and spectra: a step toward predictive quantum chemistry , 1989 .