QMBLthe quantum many-body leaderboardbeta

All instances / Electron gas, 3D

Electron gas, 3D sc cell, N = 14, rs = 15, unpolarized

Record

-0.0408619(1) E/N (Ha)

FermiNet (16 determinants, Gaussian basis transformation)

arXiv:2604.15888 · lowest unflagged energy published, a strict variational bound (rules §6)

The Hamiltonian

H = −½ ∑i ∇i2 + ∑i<j vE(ri − rj) + Nξ/2

Homogeneous electron gas in 3D: N↑ = 7, N↓ = 7 in a periodic sc cell at rs = 15 bohr, Γ point. vE is the Ewald-summed Coulomb interaction with a uniform neutralizing background, ξ the Madelung term. Hartree atomic units; the energy per electron is E/N.

cell
sc
electrons
14
boundary
periodic
N_up
7
N_dn
7
rs
15
twist
Gamma
energies
6

Stored as a total energy in Hartree (rules §12); quoted here as E/N (Ha), the energy per electron (how the conversion works).

Every published energy

Grouped by what the number is. Where the instance is not solved, the lowest unflagged energy of any group is the record.

Strict variational upper bounds (6)

Where the instance is not solved, the record is the lowest unflagged energy in this group or among the projected and extrapolated ones, with or without an error bar; where it is solved, the exact energy is the record and the lowest of these is the closest challenger.

E/N (Ha)distance to recordσVar(E)V-score methodsourceyear
-0.0408619record 0 1.4e-7 n/a n/a FermiNet (16 determinants, Gaussian basis transformation)
preprint
arXiv:2604.15888 n/a
-0.0408578 4.1e-6 1.4e-7 n/a n/a FermiNet (16 determinants)
preprint
arXiv:2604.15888 n/a
-0.0408060 5.6e-5 6.4e-7 n/a n/a FermiNet (4 determinants, Gaussian basis transformation)
preprint
arXiv:2604.15888 n/a
-0.040804 5.8e-5 1.4e-6 n/a n/a FermiNet (1 determinant, Gaussian basis transformation)
preprint
arXiv:2604.15888 n/a
-0.0407969 6.5e-5 5.7e-7 n/a n/a FermiNet (4 determinants)
preprint
arXiv:2604.15888 n/a
-0.040774 8.8e-5 3.6e-6 n/a n/a FermiNet (1 determinant)
preprint
arXiv:2604.15888 n/a

How these numbers were read

Where each number below was read, and how it was checked.

-0.0408619(1) — FermiNet (16 determinants, Gaussian basis transformation)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.572067(2)

Table III (SM S3.D), rs=15, column E n_det=16; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

-0.0408578(1) — FermiNet (16 determinants)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.572009(2)

Table III (SM S3.D), rs=15, column E' n_det=16; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

-0.0408060(6) — FermiNet (4 determinants, Gaussian basis transformation)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.571284(9)

Table III (SM S3.D), rs=15, column E n_det=4; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

-0.040804(1) — FermiNet (1 determinant, Gaussian basis transformation)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.57125(2)

Table III (SM S3.D), rs=15, column E n_det=1; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

-0.0407969(6) — FermiNet (4 determinants)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.571157(8)

Table III (SM S3.D), rs=15, column E' n_det=4; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

-0.040774(4) — FermiNet (1 determinant)

Checked 2026-10-16 · source text of arXiv:2604.15888 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; single reading

Reported as. -0.57083(5)

Table III (SM S3.D), rs=15, column E' n_det=1; sources/2604.15888.txt line 1328; printed in Ha, total; version read: arXiv text with its Supplemental Material; no journal version (Crossref) | Total energies in Hartree (captions 'Total energies, in Hartree'), divided by N; the SM's Ewald sum includes the self-image terms. QMBL's HF check: N = 14, rs = 1, sc: E/N = 0.56902 is 0.0375 Ha below QMBL's HF energy 0.6065343, as arXiv:2202.04622's are.

Coverage

No row here carries a publication year.

This instance as data

JSON · source file on GitHub · add a result · open an issue about this instance