{
  "model": "ShastrySutherland",
  "lattice": "square",
  "n_sites": 400,
  "boundary": "O",
  "params": {
    "J": 0.8,
    "Jd": 1
  },
  "cluster": "20 x 20 square lattice with orthogonal dimers, open boundaries, setup B of arXiv:2309.10955 App. S-2 (the corner sites carry no dimer bond)",
  "instance_id": "ShastrySutherland/square_400_O_J0.8_Jd1",
  "rows": [
    {
      "energy": -707.3664,
      "sigma": 0.0128,
      "energy_variance": null,
      "dof": 400,
      "einf": 0,
      "v_score": null,
      "method": "PEPS",
      "ansatz": null,
      "method_detail": "finite",
      "method_as_published": "finite PEPS, D = 4",
      "family": "tensor network",
      "bound_type": "variational",
      "bound_type_reason": "variational ansatz at a stated size; energy is an upper bound (assigned during source reading)",
      "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
      "peer_reviewed": true,
      "source": "sweep-allresults-2026-10-20",
      "provenance": "primary",
      "verified": {
        "checked_on": "2026-10-20",
        "method": "source text of arXiv:2309.10955 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; first reading and an adversarial second reading (2026-10-20)",
        "reported_as": "-0.442104(8)",
        "note": "Table III, D = 4; version read: arXiv text (sources/2309.10955.txt); the journal version was not reached from this session, to be read on the verification pass (RULES.md 8) | Eq. (1) H = J1 sum S.S (square bonds) + J2 sum S.S (dimer bonds), Table III caption '20 x 20 SSM system at J1/J2 = 0.8 (set J2 = 1)'; per site: the section compares 'energy per site' of finite PEPS and iPEPS, and E_DVBS = -0.375. Table III does not say whether the average runs over the whole lattice or a central cluster; read as the whole lattice.",
        "secondary_of": null,
        "second_read": {
          "checked_on": "2026-10-24",
          "scope": "value",
          "method": "arXiv:2309.10955v2 PDF (SM Table III), pypdf layout mode; v1 Table III identical; PRL 133, 026502 accepted manuscript (CHORUS) for the main text; APS SM not reachable (HTTP 401)",
          "location": "SM Table III, row D = 4, column E",
          "reported_as": "-0.442104(8) (S.S units, per site of the 20 x 20 open lattice (setup B), J1/J2 = 0.8 with J2 = 1)",
          "conversion": "-0.442104 x 1600 = -707.3664; sigma 8e-06 x 1600 = 0.0128",
          "note": "Own computation; Eq. (1) is the instance's H (J = J1 = 0.8 on square bonds, Jd = J2 = 1 on dimers, S.S, no shift); open 20 x 20, setup B (App. S-2); fixed-D finite PEPS energy sampled by MC, variational, sampled; sigma = printed MC error x 1600. Whole-lattice per-site reading supported by the size of the open-edge loss (1.5% above the periodic 10 x 10 value). Journal main text agrees with arXiv; the journal SM was not reachable (APS 401), arXiv v2 (2024-05-29) post-dates the accepted manuscript (2024-05-21). No other batch's row on the instance.",
          "source_entry": "famP6-shastrysutherland-j1j2-heisenberg#0 (qmbl-verify 2026-10-23)"
        }
      },
      "compute": {
        "parameters": null,
        "gpu_hours": null,
        "device": null,
        "n_devices": null,
        "samples": null,
        "wall_clock": null,
        "cpu_core_hours": null,
        "bond_dimension": 4,
        "iterations": null,
        "reported_as": "method string: \"finite PEPS, D = 4\"",
        "source": "the row's published method string (scripts/method_names.mjs, 2026-09-17)",
        "scope": "row",
        "confidence": "high",
        "note": "Only the numbers the method string states; nothing else about this run's cost is recorded."
      }
    },
    {
      "energy": -708.5776,
      "sigma": 0.0144,
      "energy_variance": null,
      "dof": 400,
      "einf": 0,
      "v_score": null,
      "method": "PEPS",
      "ansatz": null,
      "method_detail": "finite",
      "method_as_published": "finite PEPS, D = 6",
      "family": "tensor network",
      "bound_type": "variational",
      "bound_type_reason": "variational ansatz at a stated size; energy is an upper bound (assigned during source reading)",
      "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
      "peer_reviewed": true,
      "source": "sweep-allresults-2026-10-20",
      "provenance": "primary",
      "verified": {
        "checked_on": "2026-10-20",
        "method": "source text of arXiv:2309.10955 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; first reading and an adversarial second reading (2026-10-20)",
        "reported_as": "-0.442861(9)",
        "note": "Table III, D = 6; version read: arXiv text (sources/2309.10955.txt); the journal version was not reached from this session, to be read on the verification pass (RULES.md 8) | Eq. (1) H = J1 sum S.S (square bonds) + J2 sum S.S (dimer bonds), Table III caption '20 x 20 SSM system at J1/J2 = 0.8 (set J2 = 1)'; per site: the section compares 'energy per site' of finite PEPS and iPEPS, and E_DVBS = -0.375. Table III does not say whether the average runs over the whole lattice or a central cluster; read as the whole lattice.",
        "secondary_of": null,
        "second_read": {
          "checked_on": "2026-10-24",
          "scope": "value",
          "method": "arXiv:2309.10955v2 PDF (SM Table III), pypdf layout mode; v1 Table III identical; PRL 133, 026502 accepted manuscript (CHORUS) for the main text; APS SM not reachable (HTTP 401)",
          "location": "SM Table III, row D = 6, column E",
          "reported_as": "-0.442861(9) (S.S units, per site of the 20 x 20 open lattice (setup B), J1/J2 = 0.8 with J2 = 1)",
          "conversion": "-0.442861 x 1600 = -708.5776; sigma 9e-06 x 1600 = 0.0144",
          "note": "Own computation; Eq. (1) is the instance's H (J = J1 = 0.8 on square bonds, Jd = J2 = 1 on dimers, S.S, no shift); open 20 x 20, setup B (App. S-2); fixed-D finite PEPS energy sampled by MC, variational, sampled; sigma = printed MC error x 1600. Whole-lattice per-site reading supported by the size of the open-edge loss (1.5% above the periodic 10 x 10 value). Journal main text agrees with arXiv; the journal SM was not reachable (APS 401), arXiv v2 (2024-05-29) post-dates the accepted manuscript (2024-05-21). No other batch's row on the instance.",
          "source_entry": "famP6-shastrysutherland-j1j2-heisenberg#1 (qmbl-verify 2026-10-23)"
        }
      },
      "compute": {
        "parameters": null,
        "gpu_hours": null,
        "device": null,
        "n_devices": null,
        "samples": null,
        "wall_clock": null,
        "cpu_core_hours": null,
        "bond_dimension": 6,
        "iterations": null,
        "reported_as": "method string: \"finite PEPS, D = 6\"",
        "source": "the row's published method string (scripts/method_names.mjs, 2026-09-17)",
        "scope": "row",
        "confidence": "high",
        "note": "Only the numbers the method string states; nothing else about this run's cost is recorded."
      }
    },
    {
      "energy": -708.672,
      "sigma": 0.0032,
      "energy_variance": null,
      "dof": 400,
      "einf": 0,
      "v_score": null,
      "method": "PEPS",
      "ansatz": null,
      "method_detail": "finite",
      "method_as_published": "finite PEPS, D = 8",
      "family": "tensor network",
      "bound_type": "variational",
      "bound_type_reason": "variational ansatz at a stated size; energy is an upper bound (assigned during source reading)",
      "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
      "peer_reviewed": true,
      "source": "sweep-allresults-2026-10-20",
      "provenance": "primary",
      "verified": {
        "checked_on": "2026-10-20",
        "method": "source text of arXiv:2309.10955 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; first reading and an adversarial second reading (2026-10-20)",
        "reported_as": "-0.442920(2)",
        "note": "Table III, D = 8; version read: arXiv text (sources/2309.10955.txt); the journal version was not reached from this session, to be read on the verification pass (RULES.md 8) | Eq. (1) H = J1 sum S.S (square bonds) + J2 sum S.S (dimer bonds), Table III caption '20 x 20 SSM system at J1/J2 = 0.8 (set J2 = 1)'; per site: the section compares 'energy per site' of finite PEPS and iPEPS, and E_DVBS = -0.375. Table III does not say whether the average runs over the whole lattice or a central cluster; read as the whole lattice.",
        "secondary_of": null,
        "second_read": {
          "checked_on": "2026-10-24",
          "scope": "value",
          "method": "arXiv:2309.10955v2 PDF (SM Table III), pypdf layout mode; v1 Table III identical; PRL 133, 026502 accepted manuscript (CHORUS) for the main text; APS SM not reachable (HTTP 401)",
          "location": "SM Table III, row D = 8, column E",
          "reported_as": "-0.442920(2) (S.S units, per site of the 20 x 20 open lattice (setup B), J1/J2 = 0.8 with J2 = 1)",
          "conversion": "-0.44292 x 1600 = -708.672; sigma 2e-06 x 1600 = 0.0032",
          "note": "Own computation; Eq. (1) is the instance's H (J = J1 = 0.8 on square bonds, Jd = J2 = 1 on dimers, S.S, no shift); open 20 x 20, setup B (App. S-2); fixed-D finite PEPS energy sampled by MC, variational, sampled; sigma = printed MC error x 1600. Whole-lattice per-site reading supported by the size of the open-edge loss (1.5% above the periodic 10 x 10 value). Journal main text agrees with arXiv; the journal SM was not reachable (APS 401), arXiv v2 (2024-05-29) post-dates the accepted manuscript (2024-05-21). No other batch's row on the instance.",
          "source_entry": "famP6-shastrysutherland-j1j2-heisenberg#2 (qmbl-verify 2026-10-23)"
        }
      },
      "compute": {
        "parameters": null,
        "gpu_hours": null,
        "device": null,
        "n_devices": null,
        "samples": null,
        "wall_clock": null,
        "cpu_core_hours": null,
        "bond_dimension": 8,
        "iterations": null,
        "reported_as": "method string: \"finite PEPS, D = 8\"",
        "source": "the row's published method string (scripts/method_names.mjs, 2026-09-17)",
        "scope": "row",
        "confidence": "high",
        "note": "Only the numbers the method string states; nothing else about this run's cost is recorded."
      }
    },
    {
      "energy": -708.6848,
      "sigma": 0.0048,
      "energy_variance": null,
      "dof": 400,
      "einf": 0,
      "v_score": null,
      "method": "PEPS",
      "ansatz": null,
      "method_detail": "finite",
      "method_as_published": "finite PEPS, D = 10",
      "family": "tensor network",
      "bound_type": "variational",
      "bound_type_reason": "variational ansatz at a stated size; energy is an upper bound (assigned during source reading)",
      "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
      "peer_reviewed": true,
      "source": "sweep-allresults-2026-10-20",
      "provenance": "primary",
      "verified": {
        "checked_on": "2026-10-20",
        "method": "source text of arXiv:2309.10955 read locally (arXiv HTML or pypdf layout text); value copied from the harvested cell and the text, no LLM transcription of numbers; first reading and an adversarial second reading (2026-10-20)",
        "reported_as": "-0.442928(3)",
        "note": "Table III, D = 10; version read: arXiv text (sources/2309.10955.txt); the journal version was not reached from this session, to be read on the verification pass (RULES.md 8) | Eq. (1) H = J1 sum S.S (square bonds) + J2 sum S.S (dimer bonds), Table III caption '20 x 20 SSM system at J1/J2 = 0.8 (set J2 = 1)'; per site: the section compares 'energy per site' of finite PEPS and iPEPS, and E_DVBS = -0.375. Table III does not say whether the average runs over the whole lattice or a central cluster; read as the whole lattice.",
        "secondary_of": null,
        "second_read": {
          "checked_on": "2026-10-24",
          "scope": "value",
          "method": "arXiv:2309.10955v2 PDF (SM Table III), pypdf layout mode; v1 Table III identical; PRL 133, 026502 accepted manuscript (CHORUS) for the main text; APS SM not reachable (HTTP 401)",
          "location": "SM Table III, row D = 10, column E",
          "reported_as": "-0.442928(3) (S.S units, per site of the 20 x 20 open lattice (setup B), J1/J2 = 0.8 with J2 = 1)",
          "conversion": "-0.442928 x 1600 = -708.6848; sigma 3e-06 x 1600 = 0.0048",
          "note": "Own computation; Eq. (1) is the instance's H (J = J1 = 0.8 on square bonds, Jd = J2 = 1 on dimers, S.S, no shift); open 20 x 20, setup B (App. S-2); fixed-D finite PEPS energy sampled by MC, variational, sampled; sigma = printed MC error x 1600. Whole-lattice per-site reading supported by the size of the open-edge loss (1.5% above the periodic 10 x 10 value). Journal main text agrees with arXiv; the journal SM was not reachable (APS 401), arXiv v2 (2024-05-29) post-dates the accepted manuscript (2024-05-21). No other batch's row on the instance. Record row: D = 10 sits 8e-6 per site (2.2 combined sigma) below D = 8; the paper calls D = 8 converged.",
          "source_entry": "famP6-shastrysutherland-j1j2-heisenberg#3 (qmbl-verify 2026-10-23)"
        }
      },
      "compute": {
        "parameters": null,
        "gpu_hours": null,
        "device": null,
        "n_devices": null,
        "samples": null,
        "wall_clock": null,
        "cpu_core_hours": null,
        "bond_dimension": 10,
        "iterations": null,
        "reported_as": "method string: \"finite PEPS, D = 10\"",
        "source": "the row's published method string (scripts/method_names.mjs, 2026-09-17)",
        "scope": "row",
        "confidence": "high",
        "note": "Only the numbers the method string states; nothing else about this run's cost is recorded."
      }
    }
  ],
  "url": "https://qmbl.org/i/ShastrySutherland/square_400_O_J0.8_Jd1/",
  "per_site_divisor": 1600,
  "per_site_label": "E/N (S.S)",
  "best": {
    "exact": null,
    "variational": {
      "energy": -708.6848,
      "sigma": 0.0048,
      "method": "PEPS",
      "ansatz": null,
      "method_detail": "finite",
      "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
      "bound_type": "variational",
      "energy_per_site": -0.442928
    },
    "projected": null,
    "extrapolated": null,
    "approximate": null,
    "below_exact": []
  },
  "no_best_reason": null,
  "record": {
    "energy": -708.6848,
    "sigma": 0.0048,
    "method": "PEPS",
    "ansatz": null,
    "method_detail": "finite",
    "reference": "Liu, Zhang, Wang, Gong, Chen & Gu, Quantum Criticality with Emergent Symmetry in the Extended Shastry-Sutherland Model, Phys. Rev. Lett. 133, 026502 (2024), doi:10.1103/PhysRevLett.133.026502, arXiv:2309.10955",
    "bound_type": "variational",
    "energy_per_site": -0.442928
  },
  "no_record_reason": null
}
