Figure 4
From: Reduction of the molecular hamiltonian matrix using quantum community detection
Comparison of Quantum Community Detection with current methods. Results for CISD, CISDT, CCSD(T), CISDTQ, and our Quantum Community Detection (QCD) relative to FCI are shown for five molecules, N2, CO, H4O2+, BH3, and H2O. CISD (violet), CISDT (red) and CCSD(T) (gray) produced energy differences greater than chemical accuracy for one or more molecules. For these five molecules we can see that Quantum Community Detection produced results that are competitive with current methods, similar to CISDTQ and the gold standard, CCSD(T).
