{
  "metadata": {
    "release_id": "zenodo-23082359-v1.1",
    "name": "BeyondH2",
    "version": "1.1",
    "title": "Data and analysis code for \"The winner's curse in hardware VQE: drift-differenced remeasurement of finite-shot selection bias\"",
    "description": "Published VQE trajectories, fixed-parameter remeasurements, references, circuits, calibrations and simulation controls.",
    "status": "published",
    "released_at": "2026-10-01",
    "dataset_doi": "10.5281/zenodo.23082359",
    "repository_url": "https://zenodo.org/records/23082359",
    "license": "CC BY 4.0"
  },
  "count": 38,
  "records": [
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.0494637598480139,
      "calculation_id": "CALC-033C43A48C68AFD8",
      "charge": 0,
      "completed_at": "2026-07-30T19:31:04+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0461195335548787,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0461195335548787,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-07-30T19:17:24+00:00",
      "wall_time_seconds": 820.0947229862213
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.9255150605482687,
      "calculation_id": "CALC-0576F86196CE9D5A",
      "charge": 0,
      "completed_at": "2026-08-01T17:10:36+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 20,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.9201002912523855,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.9201002912523855,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T17:00:24+00:00",
      "wall_time_seconds": 612.1462016105652
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -4.201369932385862,
      "calculation_id": "CALC-121A1C9BF2A3307D",
      "charge": 0,
      "completed_at": "2026-09-02T04:02:33+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 30,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.147017485562696,
      "mapper": "PT",
      "max_iterations": 30,
      "molecular_multiplicity": 1,
      "molecule": "H2O",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.147017485562696,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-01T17:16:42+00:00",
      "wall_time_seconds": 38751.08962345123
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -4.908083308431082,
      "calculation_id": "CALC-175C5C09E75B90EC",
      "charge": 0,
      "completed_at": "2026-08-01T17:30:28+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 25,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.873293993566872,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.873293993566872,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T17:10:42+00:00",
      "wall_time_seconds": 1186.4065608978271
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.9281607079227991,
      "calculation_id": "CALC-18257228AF340696",
      "charge": 0,
      "completed_at": "2026-08-01T19:43:51+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 25,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.9217671976342687,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.9217671976342687,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T19:22:59+00:00",
      "wall_time_seconds": 1251.7404527664185
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_phoenix",
      "basis": "sto3g",
      "best_energy_hartree": -1.0433862210500957,
      "calculation_id": "CALC-18A099ACE7153F3A",
      "charge": 0,
      "completed_at": "2026-09-10T15:28:13+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0411283392627182,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Nighthawk",
      "processor_revision": "2",
      "reported_energy_hartree": -1.0411283392627182,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-10T15:16:33+00:00",
      "wall_time_seconds": 699.9784862995148
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.0504330555197054,
      "calculation_id": "CALC-2D493C3BB91A3849",
      "charge": 0,
      "completed_at": "2026-08-01T19:22:55+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 27,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.047591979189134,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.047591979189134,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T19:08:20+00:00",
      "wall_time_seconds": 874.4176685810089
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.0387963034695404,
      "calculation_id": "CALC-4AB6D86613FB98D1",
      "charge": 0,
      "completed_at": "2026-08-01T18:21:31+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 26,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0335631480316272,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0335631480316272,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T18:06:37+00:00",
      "wall_time_seconds": 894.4818117618561
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_phoenix",
      "basis": "sto3g",
      "best_energy_hartree": -1.0449972844198074,
      "calculation_id": "CALC-5D9274711FBB4C42",
      "charge": 0,
      "completed_at": "2026-09-10T15:16:33+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0377017257922212,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Nighthawk",
      "processor_revision": "2",
      "reported_energy_hartree": -1.0377017257922212,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-10T05:34:44+00:00",
      "wall_time_seconds": 34909.31013727188
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.0502190996084728,
      "calculation_id": "CALC-61A2204415ECA2A6",
      "charge": 0,
      "completed_at": "2026-08-01T10:18:06+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0460428764977743,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0460428764977743,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T10:01:21+00:00",
      "wall_time_seconds": 1004.1449835300446
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -4.879641246208897,
      "calculation_id": "CALC-6709EBDA9E9C0F26",
      "charge": 0,
      "completed_at": "2026-08-01T19:09:35+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.838620290460071,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.838620290460071,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T18:56:28+00:00",
      "wall_time_seconds": 786.596875667572
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.036633143029637,
      "calculation_id": "CALC-705900846B8E56DA",
      "charge": 0,
      "completed_at": "2026-07-31T16:20:56+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0330847547422453,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0330847547422453,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-07-31T01:08:22+00:00",
      "wall_time_seconds": 54754.29746222496
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.8523923007500307,
      "calculation_id": "CALC-7901F65B539AB0CA",
      "charge": 0,
      "completed_at": "2026-08-01T16:48:15+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.841409171900592,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.841409171900592,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T16:37:00+00:00",
      "wall_time_seconds": 674.8085849285126
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.8605281940660428,
      "calculation_id": "CALC-7AA93737F91BD4E8",
      "charge": 0,
      "completed_at": "2026-08-01T18:06:32+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.8339569092697285,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.8339569092697285,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T17:54:27+00:00",
      "wall_time_seconds": 725.0297040939331
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.036171879564165,
      "calculation_id": "CALC-7DECB02CC20FA33E",
      "charge": 0,
      "completed_at": "2026-08-01T12:33:06+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 20,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0347901230056231,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0347901230056231,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T12:19:31+00:00",
      "wall_time_seconds": 815.0334303379059
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.9245017484276405,
      "calculation_id": "CALC-8574650E84AB10AC",
      "charge": 0,
      "completed_at": "2026-08-02T18:56:59+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 20,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.9145727531907473,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.9145727531907473,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T18:43:16+00:00",
      "wall_time_seconds": 822.4560062885284
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -4.904397119959308,
      "calculation_id": "CALC-8575AA563EFF52BE",
      "charge": 0,
      "completed_at": "2026-08-02T19:36:55+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.808553270766344,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.808553270766344,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T18:57:04+00:00",
      "wall_time_seconds": 2391.0487735271454
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.0346217634185293,
      "calculation_id": "CALC-8B649B433D055CFB",
      "charge": 0,
      "completed_at": "2026-08-02T18:43:11+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 24,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0298641556111297,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0298641556111297,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T18:26:32+00:00",
      "wall_time_seconds": 998.4463622570038
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -5.066982714071738,
      "calculation_id": "CALC-8E65C683FBF470C7",
      "charge": 0,
      "completed_at": "2026-08-16T06:14:06+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 19,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.984991847769109,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.984991847769109,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-15T22:13:21+00:00",
      "wall_time_seconds": 28844.84703350067
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.917852233663677,
      "calculation_id": "CALC-92A13B78BE4B78FB",
      "charge": 0,
      "completed_at": "2026-08-01T18:33:42+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.909942457685482,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.909942457685482,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T18:21:37+00:00",
      "wall_time_seconds": 725.5914239883423
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -4.884458319953834,
      "calculation_id": "CALC-99AC7F74C6836077",
      "charge": 0,
      "completed_at": "2026-08-01T13:37:26+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.875000985015067,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.875000985015067,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T13:10:09+00:00",
      "wall_time_seconds": 1637.179093837738
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -5.017644271096461,
      "calculation_id": "CALC-9A083AE23EB67A50",
      "charge": 0,
      "completed_at": "2026-08-02T16:19:46+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 25,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.772132150811279,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.772132150811279,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T16:05:09+00:00",
      "wall_time_seconds": 877.382247209549
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.8287583101056777,
      "calculation_id": "CALC-9C09C890D34C4C3D",
      "charge": 0,
      "completed_at": "2026-08-01T12:19:22+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 18,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.8287583101056777,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.8287583101056777,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T12:09:43+00:00",
      "wall_time_seconds": 578.8594553470612
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_phoenix",
      "basis": "sto3g",
      "best_energy_hartree": -1.0427644467444896,
      "calculation_id": "CALC-9FE91E6D32B1AB3A",
      "charge": 0,
      "completed_at": "2026-09-10T16:04:11+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0407200800057355,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Nighthawk",
      "processor_revision": "2",
      "reported_energy_hartree": -1.0407200800057355,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-10T15:43:54+00:00",
      "wall_time_seconds": 1217.6200881004333
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.8587665817293932,
      "calculation_id": "CALC-A7320AE4E46E9113",
      "charge": 0,
      "completed_at": "2026-08-01T19:08:09+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 20,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.8396360972460275,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.8396360972460275,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T18:57:44+00:00",
      "wall_time_seconds": 625.5469267368317
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.8594597643461384,
      "calculation_id": "CALC-A78E8D0D9D681651",
      "charge": 0,
      "completed_at": "2026-07-31T01:08:11+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.824026927049641,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.824026927049641,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-07-30T20:14:07+00:00",
      "wall_time_seconds": 17644.846600055695
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.0491084796169803,
      "calculation_id": "CALC-A7B78D470789A2B8",
      "charge": 0,
      "completed_at": "2026-08-01T17:00:16+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0446498895655978,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.0446498895655978,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T16:48:19+00:00",
      "wall_time_seconds": 716.6932425498962
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.925841857678902,
      "calculation_id": "CALC-A7DF86238CE65F62",
      "charge": 0,
      "completed_at": "2026-08-01T12:46:18+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 25,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.9190960345135644,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.9190960345135644,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T12:33:10+00:00",
      "wall_time_seconds": 787.9134731292725
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -4.197817744526258,
      "calculation_id": "CALC-A857C978C31D96E5",
      "charge": 0,
      "completed_at": "2026-08-01T14:40:46+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 40,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.007231416329642,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2O",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.007231416329642,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T13:37:34+00:00",
      "wall_time_seconds": 3791.9525611400604
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.9142204403139498,
      "calculation_id": "CALC-BE7DD832052C0B98",
      "charge": 0,
      "completed_at": "2026-07-31T21:48:37+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 23,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.8915406460272217,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.8915406460272217,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-07-31T16:21:02+00:00",
      "wall_time_seconds": 19655.004074573517
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.8479059880659163,
      "calculation_id": "CALC-C7AE8DFA9261546E",
      "charge": 0,
      "completed_at": "2026-08-01T10:01:18+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.832080403292395,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.832080403292395,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T09:02:39+00:00",
      "wall_time_seconds": 3519.1775994300842
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -2.9423391929914997,
      "calculation_id": "CALC-CF9C5CD836AA97B4",
      "charge": 0,
      "completed_at": "2026-08-01T13:10:06+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 40,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -2.863383565353705,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "BeH2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -2.863383565353705,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T12:11:17+00:00",
      "wall_time_seconds": 3528.4186527729034
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -4.98299649739547,
      "calculation_id": "CALC-D55BB01990916728",
      "charge": 0,
      "completed_at": "2026-08-02T07:34:56+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -4.917500801770324,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 3,
      "molecule": "O2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -4.917500801770324,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 2,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T07:22:40+00:00",
      "wall_time_seconds": 736.0847218036652
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_phoenix",
      "basis": "sto3g",
      "best_energy_hartree": -1.0402901860301699,
      "calculation_id": "CALC-D579E3A151F23558",
      "charge": 0,
      "completed_at": "2026-09-10T15:43:54+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.0286757080514182,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Nighthawk",
      "processor_revision": "2",
      "reported_energy_hartree": -1.0286757080514182,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-10T15:28:13+00:00",
      "wall_time_seconds": 940.6601254940033
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -1.8670250102313668,
      "calculation_id": "CALC-DE0C3E575519C1F4",
      "charge": 0,
      "completed_at": "2026-08-02T18:26:28+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 21,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.8567522574755455,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "H2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.8567522574755455,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-02T18:02:47+00:00",
      "wall_time_seconds": 1420.510419845581
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_aachen",
      "basis": "sto3g",
      "best_energy_hartree": -1.9236012050727616,
      "calculation_id": "CALC-DE4F51A7940A5EBB",
      "charge": 0,
      "completed_at": "2026-08-01T12:07:16+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 22,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.9198533421587693,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "HF",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -1.9198533421587693,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-08-01T10:18:09+00:00",
      "wall_time_seconds": 6546.532618045807
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "4e4o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_pittsburgh",
      "basis": "sto3g",
      "best_energy_hartree": -2.8143868585901113,
      "calculation_id": "CALC-EDE7BCF90C99E27E",
      "charge": 0,
      "completed_at": "2026-09-02T09:57:56+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 30,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -2.7455179952152897,
      "mapper": "PT",
      "max_iterations": 30,
      "molecular_multiplicity": 1,
      "molecule": "BeH2",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Heron",
      "processor_revision": "3",
      "reported_energy_hartree": -2.7455179952152897,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-02T06:18:03+00:00",
      "wall_time_seconds": 13192.29870057106
    },
    {
      "access_program": "fraunhofer-quantumnow",
      "active_space": "2e2o",
      "ansatz": "UCC",
      "arxiv_ids": "2609.27704",
      "backend": "ibm_phoenix",
      "basis": "sto3g",
      "best_energy_hartree": -1.0371710965440646,
      "calculation_id": "CALC-F2BC05F6A1478FD0",
      "charge": 0,
      "completed_at": "2026-09-09T20:32:13+00:00",
      "dois": "10.48550/arXiv.2609.27704",
      "evaluations": 19,
      "execution_mode": "hardware",
      "execution_strategy": "single-job",
      "final_energy_hartree": -1.02932117090085,
      "mapper": "PT",
      "max_iterations": 40,
      "molecular_multiplicity": 1,
      "molecule": "LiH",
      "optimizer": "COBYLA",
      "precision": 0.03125,
      "processor_family": "Nighthawk",
      "processor_revision": "2",
      "reported_energy_hartree": -1.02932117090085,
      "resilience_level": 0,
      "seed": null,
      "shots": 1024,
      "spin_twice_s": 0,
      "study": "BeyondH2 hardware VQE and fixed-parameter remeasurement",
      "submitted_at": "2026-09-09T17:12:59+00:00",
      "wall_time_seconds": 11954.498317241669
    }
  ]
}
