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Molecular benchmarks, from energy accuracy to QPU cost.

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320 calculations
6 molecular species
9 compute resources
29488 QPU seconds recorded
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SelectMoleculeCompute resource ShotsRuntime executionResilience MappingActive spaceFinal energy (Ha) Absolute error (mHa)QPU time (s)Qubits / depth / 2QCalculated atPublication
H2 ibm_brussels16 single-job0 JW2e,2o -1.1131455241 744.1323 4 / 96 / 48 2026-02-24T23:05:40+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_kingston1024 session1 PT2e,2o -1.8680202459 10.7452201 1 / 1 / 0 2026-02-24T19:27:06+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_kingston1024 session2 PT2e,2o -1.8565888094 0.686221220 1 / 1 / 0 2026-02-24T13:00:16+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels4096 single-job0 JW2e,2o -0.9867948758 870.48144 4 / 96 / 48 2026-02-15T23:34:39+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 JW2e,2o -0.9870297020 870.24544 4 / 96 / 48 2026-02-15T23:30:07+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels512 single-job0 JW2e,2o -1.0056039044 851.67151 4 / 96 / 48 2026-02-15T23:28:04+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels256 single-job0 JW2e,2o -1.0034008204 853.87421 4 / 96 / 48 2026-02-15T23:26:20+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels64 single-job0 JW2e,2o -0.9592223006 898.05329 4 / 96 / 48 2026-02-15T23:24:43+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 JW2e,2o -1.0965579236 760.71718 4 / 96 / 48 2026-02-15T23:23:17+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels4096 single-job0 PT2e,2o -1.8418345860 15.440477 1 / 1 / 0 2026-02-15T23:19:43+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 PT2e,2o -1.8299068827 27.368133 1 / 1 / 0 2026-02-15T23:15:59+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels512 single-job0 PT2e,2o -1.8374059505 19.869119 1 / 1 / 0 2026-02-15T23:14:31+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels256 single-job0 PT2e,2o -1.8443304853 12.944532 1 / 1 / 0 2026-02-15T23:12:07+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels64 single-job0 PT2e,2o -1.8302039240 27.071120 1 / 1 / 0 2026-02-15T23:09:48+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.8279492349 29.325821 1 / 1 / 0 2026-02-15T23:08:10+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels4096 single-job0 PT2e,2o -1.8398422176 17.432857 1 / 1 / 0 2026-02-15T22:58:11+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 PT2e,2o -1.8434762882 13.798726 1 / 1 / 0 2026-02-15T22:54:23+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels512 single-job0 PT2e,2o -1.7982478326 59.027222 1 / 1 / 0 2026-02-15T22:52:49+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels256 single-job0 PT2e,2o -1.8525254548 4.7495819 1 / 1 / 0 2026-02-15T22:51:16+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels64 single-job0 PT2e,2o -1.8765466912 19.271722 1 / 1 / 0 2026-02-15T22:49:41+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.9048171911 47.542221 1 / 1 / 0 2026-02-15T22:47:58+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels8192 single-job0 PT2e,2o -1.8369685513 20.3065105 1 / 1 / 0 2026-02-12T21:21:55+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels4096 single-job0 PT2e,2o -1.8234387366 33.836360 1 / 1 / 0 2026-02-12T21:19:37+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 PT2e,2o -1.8350038269 22.271230 1 / 1 / 0 2026-02-12T21:15:47+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels512 single-job0 PT2e,2o -1.8464507728 10.824318 1 / 1 / 0 2026-02-12T21:14:18+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels256 single-job0 PT2e,2o -1.8222864462 34.988625 1 / 1 / 0 2026-02-12T21:12:39+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels64 single-job0 PT2e,2o -1.8742920021 17.01721 1 / 1 / 0 2026-02-12T21:10:49+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.8822007911 24.925832 1 / 1 / 0 2026-02-12T21:08:58+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_kingston1024 session2 PT2e,2o -1.8403210799 16.954209 1 / 1 / 0 2026-02-11T23:07:22+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.5973453662 259.9325 1 / 1 / 0 2026-02-11T22:59:06+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.8369679912 20.30724 1 / 1 / 0 2026-02-11T22:55:45+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels16 single-job0 PT2e,2o -1.8369679912 20.30729 1 / 1 / 0 2026-02-11T22:12:32+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels8192 session0 PT2e,2o -1.8305461729 26.7289108 1 / 1 / 0 2026-02-11T22:01:22+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels4096 session0 PT2e,2o -1.8282359243 29.039155 1 / 1 / 0 2026-02-11T21:46:40+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels2048 session0 PT2e,2o -1.8344726690 22.802439 1 / 1 / 0 2026-02-11T21:40:15+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels512 session0 PT2e,2o -1.8275112755 29.763820 1 / 1 / 0 2026-02-11T20:47:49+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 PT2e,2o -1.8382579754 19.017138 1 / 1 / 0 2026-02-11T19:39:59+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_fez1024 session0 PT2e,2o -1.8477905805 9.4844524 1 / 1 / 0 2026-02-11T18:34:59+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_kingston1024 session0 PT2e,2o -1.8399446479 17.330422 1 / 1 / 0 2026-02-11T16:17:02+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_pittsburgh1024 session0 PT2e,2o -1.8388823320 18.392720 1 / 1 / 0 2026-02-11T14:51:26+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_pittsburgh1024 session0 PT2e,2o -1.8471553631 10.119718 1 / 1 / 0 2026-02-11T14:46:14+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_pittsburgh1024 single-job0 PT2e,2o -1.8484257979 8.8492350 1 / 1 / 0 2026-02-11T14:39:27+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_pittsburgh1024 single-job0 PT2e,2o -1.8306353668 26.639738 1 / 1 / 0 2026-02-11T14:36:43+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_pittsburgh1024 single-job0 PT2e,2o -1.8562695583 1.0054736 1 / 1 / 0 2026-02-11T14:33:57+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_fez1024 session2 PT2e,2o -1.8694070003 12.132210 1 / 1 / 0 2026-01-24T23:19:33+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 JW2e,2o -0.8765332982 980.74239 4 / 96 / 48 2026-01-19T23:58:50+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 P2e,2o -0.8567195207 1000.5623 4 / 74 / 32 2026-01-19T23:55:52+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 single-job0 PF2e,2o -1.7942807196 62.994324 2 / 17 / 4 2026-01-19T23:53:23+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 session0 PF2e,2o -1.6176118571 239.66320 2 / 17 / 4 2026-01-19T23:49:33+01:00DOI 10.48550/arXiv.2604.11478
H2 ibm_brussels1024 session0 P2e,2o -0.7542494925 1103.0328 4 / 74 / 32 2026-01-19T23:45:21+01:00DOI 10.48550/arXiv.2604.11478