{"paper":{"title":"Classical system boundaries cannot be determined within quantum Darwinism","arxiv_id":"1008.0283","primary_cat":"quant-ph","submitted_at":"2010-08-02T12:00:43+00:00","version_compiled":"v4"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13-20260917 on the question bank abstract-p1-20260923, exactly as returned. No sentence in this record was written by a language model.","schema":"pith.compiled-record/v0","status":"compiled","abstract":{"source":"arXiv listing abstract v4","sentences":[{"i":0,"p":0.97,"id":"s0","own":false,"role":"result","text":"Multiple observers who interact with environmental encodings of the states of a macroscopic quantum system S as required by quantum Darwinism cannot demonstrate that they are jointly observing S without a joint a priori assumption of a classical boundary separating S from its environment E.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.38,"main_claim_p":0.47,"quantitative":false,"quantitative_p":0.19,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.97,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.02,"interpretation":0.01}},{"i":1,"p":0.98,"id":"s1","own":true,"role":"interpretation","text":"Quantum Darwinism cannot, therefore, be regarded as providing a purely quantum-mechanical explanation of the \"emergence\" of classicality.","hedge":{"p":0.98,"label":"asserted"},"own_p":0.54,"main_claim_p":0.89,"quantitative":false,"quantitative_p":0.08,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.02,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.98}}]},"compiled":{"main_claim":{"p":0.99,"text":"Quantum Darwinism cannot, therefore, be regarded as providing a purely quantum-mechanical explanation of the \"emergence\" of classicality.","location":"abstract s1","hedge_strength":{"p":0.98,"label":"asserted"}},"provenance":{"route":{"via":"OpenRouter","model":"classifier-1.13","endpoint":"https://openrouter.ai/api/v1/systemone","provider":"TypeSafe"},"packing":"one request per paper","requests":1,"input_tokens":2335,"cost_usd_reported":9.8e-05},"compiled_at":"2026-09-23","bank_version":"abstract-p1-20260923","model_version":"classifier-1.13-20260917","abstract_states":{"claims_first":0.03,"states_limitation":0.43,"human_participants":0.03,"controlled_comparison":0.02,"randomized_assignment":0.01,"states_quantitative_result":0.02,"compares_with_prior_results":0.09,"mentions_code_or_data_availability":0.02},"evidential_basis":{"p":0.96,"value":"argument","probabilities":{"argument":0.96,"literature":0.0,"proof_or_derivation":0.04,"analysis_of_existing_data":0.0,"observation_or_experiment":0.0,"simulation_or_computation":0.0}},"contribution_type":{"p":0.52,"value":"theoretical result","probabilities":{"review":0.0,"method_or_tool":0.0,"empirical_study":0.0,"simulation_study":0.0,"theoretical_result":0.52,"dataset_or_benchmark":0.0,"position_or_commentary":0.48}},"contribution_statement":{"p":0.97,"text":"Multiple observers who interact with environmental encodings of the states of a macroscopic quantum system S as required by quantum Darwinism cannot demonstrate that they are jointly observing S without a joint a priori assumption of a classical boundary separating S from its environment E.","location":"abstract s0"}},"coverage":{"tier":"abstract","levels_run":["P abstract"],"not_examined":["full text","figures and tables","references and citing sentences","relations to other papers"],"sources_read":["arXiv listing abstract v4"],"levels_not_run":["S sections","T body sentences","C citations","R cross-paper relations"],"sentences_examined":2,"sentences_in_abstract":2},"measured_accuracy":{"url":"https://pith.science/accuracy","measured_on":"2026-10-02","method":"two independent model families labelled a fresh random sample blind; the figure is how often the published label matches their consensus","sentence_role_agreement":0.92,"main_claim_agreement":0.908,"typed_citation_agreement":0.933,"typed_citation_agreement_95_interval":[0.917,0.945],"review_comments_accurate":0.758,"review_comments_accurate_95_interval":[0.684,0.82],"review_caught_admitted_error_found_or_related":0.448}}