{
  "model": "HEG3D",
  "lattice": "sc",
  "n_sites": 246,
  "boundary": "P",
  "params": {
    "N_up": 123,
    "N_dn": 123,
    "rs": 20,
    "twist": "Gamma"
  },
  "instance_id": "HEG3D/sc_246_P_123_123_20",
  "rows": [
    {
      "energy": -7.71825,
      "sigma": 0.00123,
      "energy_variance": null,
      "dof": 246,
      "einf": null,
      "v_score": null,
      "method": "Slater-Jastrow",
      "method_detail": "",
      "method_as_published": "VMC SJ",
      "family": "classic VMC",
      "bound_type": "variational",
      "bound_type_reason": "variational ansatz at a stated size; energy is an upper bound (assigned during source reading)",
      "reference": "Y. Kwon, D. M. Ceperley & R. M. Martin, Effects of backflow correlation in the three-dimensional electron gas: Quantum Monte Carlo study, Phys. Rev. B 58, 6800 (1998), arXiv:cond-mat/9803092, doi:10.1103/PhysRevB.58.6800",
      "peer_reviewed": true,
      "source": "sweep-allresults-2026-10-17",
      "provenance": "primary",
      "verified": {
        "checked_on": "2026-10-17",
        "method": "source text of arXiv:cond-mat/9803092 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": "-0.06275(1)",
        "note": "Table III, row N=246, rs=20.0; sources/cond-mat-9803092.txt line 660; printed in Ry per electron; version read: arXiv text (sources/cond-mat-9803092.txt), Tables II and III; APS copy not read | Ry per electron (converted × 1/2), N electrons in a cube with periodic boundary conditions (simple cubic). Checked against arXiv:0801.0518 on the same instance: the fixed-node DMC energy with backflow nodes, 1.0601(2) Ry = 0.53005 Ha at N = 54, rs = 1, agrees with its 0.52989(1) Ha, 0.0376 Ha below QMBL's HF energy 0.569245.",
        "secondary_of": null
      }
    }
  ],
  "url": "https://qmbl.org/i/HEG3D/sc_246_P_123_123_20/",
  "per_site_divisor": 246,
  "per_site_label": "E/N (Ha)",
  "record": {
    "energy": -7.71825,
    "sigma": 0.00123,
    "method": "Slater-Jastrow",
    "method_detail": "",
    "reference": "Y. Kwon, D. M. Ceperley & R. M. Martin, Effects of backflow correlation in the three-dimensional electron gas: Quantum Monte Carlo study, Phys. Rev. B 58, 6800 (1998), arXiv:cond-mat/9803092, doi:10.1103/PhysRevB.58.6800",
    "bound_type": "variational",
    "energy_per_site": -0.031375
  },
  "no_record_reason": null
}