{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:ACKIH2ORQYFW6CZ5YMF7WMTRDH","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"eca92020b73f23248839ea002f84cb6c72849d7505e0b061d7b9230fb5c5bc66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-18T20:21:20Z","title_canon_sha256":"925db99f099906ad8df66baeef296378421999a99f93e141aec4b1bdd5497a37"},"schema_version":"1.0","source":{"id":"1510.05303","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.05303","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"1510.05303v1","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.05303","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"ACKIH2ORQYFW","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"ACKIH2ORQYFW6CZ5","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"ACKIH2OR","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:bd279a2775074e07dc0a665686d48df4d2c3f34aeff92197c4a83f3115935dcc","target":"graph","created_at":"2026-05-18T01:22:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We report an experimental realization of adaptive Bayesian quantum state tomography for two-qubit states. Our implementation is based on the adaptive experimental design strategy proposed in [F.Husz\\'ar and N.M.T.Houlsby, Phys.Rev.A 85, 052120 (2012)] and provides an optimal measurement approach in terms of the information gain. We address the practical questions, which one faces in any experimental application: the influence of technical noise, and behavior of the tomographic algorithm for an easy to implement class of factorized measurements. In an experiment with polarization states of enta","authors_text":"Gleb Struchalin, Igor Radchenko, Ivan Pogorelov, Konstantin Kravtsov, Sergei Kulik, Stanislav Straupe","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-18T20:21:20Z","title":"Experimental Adaptive Quantum Tomography of Two-Qubit States"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.05303","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5b9f377fd9fcf5f4b34c6b83ff3ad8c8c5dbf8461c4df39019392a6cdaf6170f","target":"record","created_at":"2026-05-18T01:22:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"eca92020b73f23248839ea002f84cb6c72849d7505e0b061d7b9230fb5c5bc66","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-18T20:21:20Z","title_canon_sha256":"925db99f099906ad8df66baeef296378421999a99f93e141aec4b1bdd5497a37"},"schema_version":"1.0","source":{"id":"1510.05303","kind":"arxiv","version":1}},"canonical_sha256":"009483e9d1860b6f0b3dc30bfb327119d6b0a032647b13cbc3ca995ec0d4d67f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"009483e9d1860b6f0b3dc30bfb327119d6b0a032647b13cbc3ca995ec0d4d67f","first_computed_at":"2026-05-18T01:22:35.253512Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:35.253512Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"32bROpzRJrJNQ9L6+8hkAW8Fg9VQzpFftBgcuOCrlCHGs2tbnvEc7WichpxKPD5/20i93/MnynM5PWDeL3oWAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:35.253914Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.05303","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b9f377fd9fcf5f4b34c6b83ff3ad8c8c5dbf8461c4df39019392a6cdaf6170f","sha256:bd279a2775074e07dc0a665686d48df4d2c3f34aeff92197c4a83f3115935dcc"],"state_sha256":"e055b5ebfece02f130792e2bcac60ad413e6e20f2cbe6df20d681b89038ad415"}