{"paper":{"title":"Time-symmetric correlations for open quantum systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.IT","gr-qc","hep-th","math.IT"],"primary_cat":"quant-ph","authors_text":"Arthur J. Parzygnat, James Fullwood","submitted_at":"2024-07-15T18:00:01Z","abstract_excerpt":"Two-time expectation values of sequential measurements of dichotomic observables are known to be time symmetric for closed quantum systems. Namely, if a system evolves unitarily between sequential measurements of dichotomic observables $\\mathscr{O}_{A}$ followed by $\\mathscr{O}_{B}$, then it necessarily follows that $\\langle\\mathscr{O}_{A}\\,,\\mathscr{O}_{B}\\rangle=\\langle\\mathscr{O}_{B}\\,,\\mathscr{O}_{A}\\rangle$, where $\\langle\\mathscr{O}_{A}\\,,\\mathscr{O}_{B}\\rangle$ is the two-time expectation value corresponding to the product of the measurement outcomes of $\\mathscr{O}_{A}$ followed by $\\m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.11123","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.11123/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}