{"paper":{"title":"Exact Quantum Correlations of Conjugate Variables From Joint Quadrature Measurements","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"S. M. Roy","submitted_at":"2013-05-02T12:02:45Z","abstract_excerpt":"We demonstrate that for two canonically conjugate operators $\\hat{q},\\hat {p} $,the global correlation $\\langle \\hat{q} \\hat {p} + \\hat{p} \\hat {q} \\rangle -2 \\langle \\hat{q}\\rangle \\langle \\hat {p}\\rangle$, and the local correlations $\\langle \\hat{q} \\rangle (p) - \\langle \\hat{q}\\rangle$ and $\\langle \\hat{p} \\rangle (q)-\\langle \\hat {p}\\rangle$ can be measured exactly by Von Neumann-Arthurs-Kelly joint quadrature measurements . These correlations provide a sensitive experimental test of quantum phase space probabilities quite distinct from the probability densities of $ q,p $. E.g. for EPR st"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1305.0410","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":""},"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"}