Hilbert space approach, single-root

Single-root MR BWCC theory Hilbert space approach 9... 

SINGLE-ROOT MR BWCC THEORY HILBERT SPACE APPROACH. 

For the sake of completeness, we recall that the idea of the single-root formalism exploiting the Hilbert space approach was also proposed by Banerjee and Simons [31] and Laidig and Bartlett [34,35]. In both approaches they start from the complete active space MC SCF wave function, however, in order to eliminate redundant cluster amplitudes they approximate the wave operator by... 

Single-root multi-reference Brillouin-Wigner coupled cluster theory Hilbert space approach... 

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