{"corpus_id":206269607,"paper_sha":"d6aed5c3c47a62b1aae57a95d9bc0d1f65963674","doi":"10.1103/PhysRevLett.116.070503","arxiv_id":"1506.05108","pmid":26943521,"pmcid":null,"mag_id":884476546,"dblp_id":null,"acl_id":null,"title":"Measuring Entanglement in a Photonic Embedding Quantum Simulator.","year":2015,"publication_date":"2015-06-16","venue":"Physical Review Letters","journal":{"name":"Physical review letters","pages":"\n          070503\n        ","volume":"116 7"},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article"],"s2_fields_of_study":["Medicine","Physics"],"reference_count":0,"citation_count":13,"influential_citation_count":0,"is_open_access":true,"arxiv_categories":["quant-ph"],"arxiv_license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","arxiv_journal_ref":"Phys. Rev. Lett. 116, 070503 (2016)","mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":"http://arxiv.org/pdf/1506.05108","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/d6aed5c3c47a62b1aae57a95d9bc0d1f65963674","s2_open_access_license":null,"s2_open_access_status":"GREEN","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Measuring entanglement is a demanding task that usually requires full tomography of a quantum system, involving a number of observables that grows exponentially with the number of parties. Recently, it was suggested that adding a single ancillary qubit would allow for the efficient measurement of concurrence, and indeed any entanglement monotone associated with antilinear operations. Here, we report on the experimental implementation of such a device-an embedding quantum simulator-in photonics, encoding the entangling dynamics of a bipartite system into a tripartite one. We show that bipartite concurrence can be efficiently extracted from the measurement of merely two observables, instead of 15, without full tomographic information.","claims":[{"public_id":"cl_57d631345705e10c777a7764abc93a8b","status":"active","text":"Adding a single ancillary qubit allows efficient measurement of concurrence and any entanglement monotone associated with antilinear operations.","confidence":0.95,"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_57d631345705e10c777a7764abc93a8b"},{"public_id":"cl_1b47e0f61947ce930b56e85c7ed9ed66","status":"active","text":"Bipartite concurrence can be efficiently extracted from measurement of only two observables instead of 15, without full tomographic 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