{"id":"W2883734760","doi":"10.1103/physrevlett.122.210402","title":"Von Neumann Entropy from Unitarity","year":2019,"lang":"en","type":"article","venue":"Physical Review Letters","topic":"Advanced Thermodynamics and Statistical Mechanics","field":"Physics and Astronomy","cited_by":78,"is_retracted":false,"has_abstract":true,"ca_institutions":"Perimeter Institute","funders":"National Center of Competence in Research Quantum Science and Technology; Institut Périmètre de physique théorique; Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung; Studienstiftung des Deutschen Volkes; Deutsche Forschungsgemeinschaft; Ontario Ministry of Research, Innovation and Science; Government of Canada","keywords":"Von Neumann entropy; Von Neumann architecture; Quantum mutual information; Unitary state; Unitarity; Quantum discord; Entropy (arrow of time); Physics; Quantum information; Quantum mechanics; Quantum entanglement; Quantum decoherence; Theoretical physics; Statistical physics; Joint quantum entropy; Quantum; Mathematics; Pure mathematics; Law","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002048115,0.0004750562,0.0007999087,0.001335927,0.0009125568,0.002231225,0.0009898108,0.0009747243,0.003708332],"category_scores_gemma":[0.0124459,0.0002620509,0.0006127172,0.000819317,0.005838396,0.00581043,0.00294514,0.002361814,0.0004131002],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001655488,"about_ca_system_score_gemma":0.001007299,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0006046497,"about_ca_topic_score_gemma":0.0003203539,"domain_scores_codex":[0.9979414,0.0005317536,0.0001053761,0.0004029844,0.0007568764,0.0002616112],"domain_scores_gemma":[0.9940672,0.003592059,0.0004958766,0.00111238,0.0004978957,0.0002345291],"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":[0.000008049286,0.000004136706,0.00009719878,0.0000194026,0.000003304713,0.00002448038,0.00004660252,0.002746759,0.0004421758,0.9944556,0.0003181362,0.001834076],"study_design_scores_gemma":[0.000002212627,0.000005895602,0.0001196336,0.000009849989,0.000001526466,0.00002962498,0.00001224227,0.01040323,0.0002963661,0.98834,0.0007717367,0.000007678937],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.2194339,0.004251092,0.5689681,0.005851002,0.0008702487,0.0001153977,0.0008370035,0.0003649751,0.1993084],"genre_scores_gemma":[0.9774703,0.001178594,0.01564121,0.0005256624,0.0006660016,0.0001268734,0.0002227895,0.00009443763,0.004074123],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.003708332,"threshold_uncertainty_score":0.01240563,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007752730567009824,"score_gpt":0.2668722202118873,"score_spread":0.2591194896448775,"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."}}