{"paper":{"title":"Lewenstein-Sanpera decomposition of a generic 2x2 density matrix by using Wootters's basis","license":"","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"M.A.Jafarizadeh, S. J. Akhtarshenas","submitted_at":"2002-11-09T21:29:19Z","abstract_excerpt":"The Lewenstein-Sanpera decomposition for a generic two-qubit density matrix is obtained by using Wootters's basis. It is shown that the average concurrence of the decomposition is equal to the concurrence of the state. It is also shown that all the entanglement content of the state is concentrated in the Wootters's state $|x_1>$ associated with the largest eigenvalue $\\lambda_1$ of the Hermitian matrix $\\sqrt{\\sqrt{\\rho}\\tilde{\\rho}\\sqrt{\\rho}}$ >. It is shown that a given density matrix $\\rho$ with corresponding set of positive numbers $\\lambda_i$ and Wootters's basis can transforms under $SO"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"quant-ph/0211051","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"}