{"paper":{"title":"Mixture of multiple copies of maximally entangled states is quasi-pure","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dong Yang, Yi-Xin Chen","submitted_at":"2003-04-29T15:16:57Z","abstract_excerpt":"Employing the general BXOR operation and local state discrimination, the mixed state of the form \\rho^{(k)}_{d}=\\frac{1}{d^{2}}\\sum_{m,n=0}^{d-1}(|\\phi_{mn}><\\phi_{mn}|)^{\\otim es k} is proved to be quasi-pure, where $\\{|\\phi_{mn}>\\}$ is the canonical set of mutually orthogonal maximally entangled states in $d\\times d$. Therefore irreversibility does not occur in the process of distillation for this family of states. Also, the distillable entanglement is calculated explicitly."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0304194","kind":"arxiv","version":2},"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/quant-ph/0304194/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"}