{"id":"W2072715415","doi":"10.1103/physrevb.66.075129","title":"Cluster perturbation theory for Hubbard models","year":2002,"lang":"en","type":"article","venue":"Physical review. B, Condensed matter","topic":"Physics of Superconductivity and Magnetism","field":"Physics and Astronomy","cited_by":245,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Sherbrooke","funders":"","keywords":"Hubbard model; Perturbation theory (quantum mechanics); Physics; Coupled cluster; Ground state; Cluster (spacecraft); Perturbation (astronomy); Quantum mechanics; Statistical physics; Wave function; Electron; t-J model; Quantum electrodynamics; Superconductivity","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0005171411,0.0005272505,0.0007447057,0.001352517,0.0007812682,0.001058996,0.001268096,0.0008427391,0.004497108],"category_scores_gemma":[0.001442079,0.0002255056,0.0005970311,0.001082268,0.001041358,0.001340325,0.0009494356,0.001335896,0.0009488417],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001326044,"about_ca_system_score_gemma":0.0008203451,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004775594,"about_ca_topic_score_gemma":0.0028154,"domain_scores_codex":[0.9996965,0.0001130885,0.000006207063,0.00001869267,0.0001267792,0.00003878937],"domain_scores_gemma":[0.9995915,0.0001523095,0.00002828904,0.00006514031,0.0001009195,0.00006191044],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.000006380383,0.000008477095,0.00004138601,0.00001900405,0.000008336911,0.0000313133,0.00004157018,0.0348948,0.0003624938,0.9611385,0.001802608,0.00164524],"study_design_scores_gemma":[0.000004727766,0.00000352337,0.00004445336,0.000005544847,0.000002562976,0.00001263217,0.00001688143,0.2944796,0.0001065428,0.7032489,0.002069151,0.0000055255],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.08278635,0.004988137,0.7682042,0.004394311,0.0007084107,0.0001511513,0.0006417896,0.001168552,0.1369571],"genre_scores_gemma":[0.8530075,0.00383253,0.07677942,0.0008756822,0.000715308,0.0003919245,0.0005434378,0.0004314974,0.06342269],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.004775594,"threshold_uncertainty_score":0.01504433,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03059038540548636,"score_gpt":0.2859916407528819,"score_spread":0.2554012553473956,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}