{"id":"W2896494301","doi":"10.1103/physrevlett.121.201301","title":"Loops Rescue the No-Boundary Proposal","year":2018,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Noncommutative and Quantum Gravity Theories","field":"Physics and Astronomy","cited_by":37,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Ontario Ministry of Research and Innovation; Ministry of Science and ICT, South Korea; National Research Foundation of Korea; Ministry of Science, ICT and Future Planning; Ontario Ministry of Research, Innovation and Science; National Science Foundation; Government of Canada; Institut Périmètre de physique théorique; Ministry of Science ICT and Future Planning; Innovation, Science and Economic Development Canada","keywords":"Semiclassical physics; Quantum cosmology; Quantum gravity; Physics; Instanton; Theoretical physics; Boundary (topology); Path integral formulation; Loop quantum cosmology; Loop quantum gravity; Spin foam; Cosmology; Quantum; Universe; Classical mechanics; Mathematical physics; Quantum mechanics; Mathematics","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":[],"category_scores_codex":[0.0002482726,0.0001728106,0.0002768885,0.00001004072,0.0003020241,0.00005562801,0.0003254926,0.000004016854,0.0003148649],"category_scores_gemma":[0.00001997704,0.0001002909,0.0002005132,0.0001774688,0.0006458609,0.0001310383,0.0000982296,0.0002327542,0.00206164],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001195902,"about_ca_system_score_gemma":0.00004337239,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00005526362,"about_ca_topic_score_gemma":0.000001825234,"domain_scores_codex":[0.9989522,0.0002148903,0.0001700661,0.0002071716,0.0001917526,0.0002639361],"domain_scores_gemma":[0.9992405,0.0001375786,0.00006992748,0.0004081667,0.00008535996,0.00005842018],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0000720128,0.0005955604,0.003657127,0.0007030124,0.0004020441,0.000007053177,0.001884218,0.000002630901,0.02299446,0.6808547,0.2324375,0.05638963],"study_design_scores_gemma":[0.0005013162,0.0003188171,0.001752515,0.001494656,0.0002857413,0.000002530384,0.0001301759,0.0003217884,0.005391068,0.1250258,0.8640465,0.0007291057],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8836167,0.003411083,0.004443124,0.06827723,0.0008506923,0.001558542,0.00008375165,0.0001278277,0.03763106],"genre_scores_gemma":[0.9809683,0.00006356424,0.0001820689,0.01581731,0.002736684,0.00006513241,0.00002201815,0.00002166234,0.0001232706],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.631609,"threshold_uncertainty_score":0.9987153,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01283809153111972,"score_gpt":0.3092938796709979,"score_spread":0.2964557881398782,"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."}}