How these numbers were read
Where each number below was read, and how it was checked.
-0.5389803, DMET
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.949015 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/DMET_5_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5385218, DMRG
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.92609 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/DMRG_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom. | Read as the variational energy of the final sweep at bond dimension D = 2000 (Appendix A runs Block with the standard settings of Ref. [66], whose schedule ends at the maximum M; the paper names no extrapolation in the bond dimension). Medium confidence: Ref. [66] also describes extrapolation to zero discarded weight, and the paper does not say whether these energies were extrapolated (ruled 2026-10-24). | reader confidence medium
-0.5385218, LDMRG
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.91789 = -26.92609 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.5385192, LDMRG
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.91776 = -26.92596 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.53851(2), ph-AFQMC
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.9256 0.0009 (total for N = 50; second number the stated uncertainty)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/AFQMC_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5384862, LDMRG
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.91611 = -26.92431 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.538418, CCSD(T)
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.91270 = -26.92090 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.5378298, CCSD
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.88329 = -26.89149 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.537583, UCCSD(T)
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.879151 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/UCCSD(T)_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5371942, UCCSD
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.859708 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/UCCSD_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5371744, SEET
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.85871993 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/SEET_CI-GF2_mix(6,SAO)_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5360719, DMET
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.803594 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/DMET_2_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.535096, GW
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.7548 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/SC-GW_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.5323218, MP2
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.00820 + E_corr -0.60789 = -26.61609 (totals)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.
-0.5247554, HF
Checked 2026-10-20 · dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0; source text of arXiv:1705.01608 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. -26.2377696095 (total for N = 50)
dataset github.com/simonsfoundation/hydrogen-benchmark-PRX, commit b99a183 (2017-10-09, uploaded by the authors), CC BY 4.0, file N_50_OBC/R_2.0/UHF_basis-STO in sources/1705.01608-data-b99a183.tsv; number first printed in the dataset (RULES.md §8), the paper is the method reference | Hartree, lengths in bohr (Appendix B). Total energies with nuclear repulsion: FCI/STO-6G H10 at R = 1.8 is -5.42438538 in the dataset and -0.542439 per atom in Table II, and the paper's FCI E_inf = -0.471039 is the STO-6G hydrogen-atom energy per atom.
-0.520164, HF
Checked 2026-10-20 · source text of arXiv:cond-mat/0606115 read locally (pypdf layout text; the generator finds every value again on its line), no LLM transcription of numbers; single reading
Reported as. E_RHF -26.008 20 (total)
Table VI, R = 2 row; sources/cond-mat-0606115.txt line 831; version read: arXiv v3 (journal copy not reached, AIP HTTP 403) | Hartree totals: E_RHF (total, with nuclear repulsion) and E_RHF,el printed side by side; at R = 1.8 bohr E_RHF + E_corr[LDMRG(500)] = -27.03865 against the 2017 STO-6G DMRG -27.03864 for H50.