{"id":"W4403346167","doi":"10.1103/tyhj-1wlq","title":"Separable ellipsoids around multipartite states","year":2025,"lang":"en","type":"preprint","venue":"Physical review. A/Physical review, A","topic":"Quantum Computing Algorithms and Architecture","field":"Computer Science","cited_by":2,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Waterloo; Université de Montréal","funders":"Fonds de recherche du Québec – Nature et technologies; Australian Research Council; National Research Council Canada; Natural Sciences and Engineering Research Council of Canada; Courtois Foundation","keywords":"Ellipsoid; Separable state; Separable space; Multipartite; Quantum entanglement; Mathematics; State (computer science); Eigenvalues and eigenvectors; Ball (mathematics); Qubit; Pure mathematics; Mathematical analysis; Physics; Quantum mechanics; Quantum; Algorithm; Quantum discord","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["metaepi_narrow","research_integrity"],"consensus_categories":["metaepi_narrow"],"category_scores_codex":[0.0009878826,0.001459237,0.003869823,0.0001348492,0.0003111768,0.0003879687,0.004259263,0.000147721,0.00001385899],"category_scores_gemma":[0.0006893916,0.001142401,0.002285121,0.001575177,0.0002353434,0.0003103547,0.00468574,0.002793845,0.0007175251],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001764695,"about_ca_system_score_gemma":0.0005283545,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00008052677,"about_ca_topic_score_gemma":0.000003356536,"domain_scores_codex":[0.9922729,0.000944463,0.00138913,0.002639884,0.001418554,0.001335044],"domain_scores_gemma":[0.9930732,0.001244224,0.0009218216,0.003713598,0.0004399083,0.000607204],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.00002562874,0.004869808,0.0001165972,0.1646788,0.001035808,0.0001721795,0.0008556974,0.02684557,0.001000918,0.06011988,0.07957227,0.6607069],"study_design_scores_gemma":[0.0001992759,0.0001376026,0.000047705,0.05842962,0.0004418301,0.000007657354,0.000001281821,0.6727833,0.0006589323,0.1311006,0.1349875,0.001204594],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.047035,0.6522181,0.2676233,0.01651984,0.002405478,0.007080028,0.0003289634,0.001864041,0.004925227],"genre_scores_gemma":[0.08857758,0.8567331,0.02335952,0.0235269,0.004101424,0.001778153,0.0004181393,0.000199039,0.001306162],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.6595023,"threshold_uncertainty_score":0.9998157,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01624363198001599,"score_gpt":0.3618991452949116,"score_spread":0.3456555133148956,"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."}}