{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:CE3VSWWL5YUNOULAOPFW67ZAUD","short_pith_number":"pith:CE3VSWWL","schema_version":"1.0","canonical_sha256":"1137595acbee28d7516073cb6f7f20a0e4d70aed908022b4294d60a9f01d4205","source":{"kind":"arxiv","id":"1704.00545","version":2},"attestation_state":"computed","paper":{"title":"Estimating phase with a random generator: Strategies and resources in multiparameter quantum metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gerardo Adesso, Rosanna Nichols, Rozhin Yousefjani, Shahriar Salimi","submitted_at":"2017-04-03T12:21:39Z","abstract_excerpt":"Quantum metrology aims to exploit quantum phenomena to overcome classical limitations in the estimation of relevant parameters. We consider a probe undergoing a phase shift $\\varphi$ whose generator is randomly sampled according to a distribution with unknown concentration $\\kappa$, which introduces a physical source of noise. We then investigate strategies for the joint estimation of the two parameters $\\varphi$ and $\\kappa$ given a finite number $N$ of interactions with the phase imprinting channel. We consider both single qubit and multipartite entangled probes, and identify regions of the "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1704.00545","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-03T12:21:39Z","cross_cats_sorted":[],"title_canon_sha256":"5fd5f596bec671bb2f73bc3bf5668ee3b73f21db2c1aa5957ca4414af23767ef","abstract_canon_sha256":"0bc32de1aadf2c0073e64f85320fd98d615c577ecd241db1c2e575bbde31cef7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:42:57.762258Z","signature_b64":"Q47T/e+4IdqQP0/jjCi/GTIex7nwsLAt2KzaVc7dv/spd0L59EnsZYjqO0H3a55ZHSr4sX9gF/TUxqZQBI9gAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1137595acbee28d7516073cb6f7f20a0e4d70aed908022b4294d60a9f01d4205","last_reissued_at":"2026-05-18T00:42:57.761596Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:42:57.761596Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Estimating phase with a random generator: Strategies and resources in multiparameter quantum metrology","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Gerardo Adesso, Rosanna Nichols, Rozhin Yousefjani, Shahriar Salimi","submitted_at":"2017-04-03T12:21:39Z","abstract_excerpt":"Quantum metrology aims to exploit quantum phenomena to overcome classical limitations in the estimation of relevant parameters. We consider a probe undergoing a phase shift $\\varphi$ whose generator is randomly sampled according to a distribution with unknown concentration $\\kappa$, which introduces a physical source of noise. We then investigate strategies for the joint estimation of the two parameters $\\varphi$ and $\\kappa$ given a finite number $N$ of interactions with the phase imprinting channel. We consider both single qubit and multipartite entangled probes, and identify regions of the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.00545","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1704.00545","created_at":"2026-05-18T00:42:57.761714+00:00"},{"alias_kind":"arxiv_version","alias_value":"1704.00545v2","created_at":"2026-05-18T00:42:57.761714+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.00545","created_at":"2026-05-18T00:42:57.761714+00:00"},{"alias_kind":"pith_short_12","alias_value":"CE3VSWWL5YUN","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_16","alias_value":"CE3VSWWL5YUNOULA","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_8","alias_value":"CE3VSWWL","created_at":"2026-05-18T12:31:10.602751+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD","json":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD.json","graph_json":"https://pith.science/api/pith-number/CE3VSWWL5YUNOULAOPFW67ZAUD/graph.json","events_json":"https://pith.science/api/pith-number/CE3VSWWL5YUNOULAOPFW67ZAUD/events.json","paper":"https://pith.science/paper/CE3VSWWL"},"agent_actions":{"view_html":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD","download_json":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD.json","view_paper":"https://pith.science/paper/CE3VSWWL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1704.00545&json=true","fetch_graph":"https://pith.science/api/pith-number/CE3VSWWL5YUNOULAOPFW67ZAUD/graph.json","fetch_events":"https://pith.science/api/pith-number/CE3VSWWL5YUNOULAOPFW67ZAUD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD/action/storage_attestation","attest_author":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD/action/author_attestation","sign_citation":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD/action/citation_signature","submit_replication":"https://pith.science/pith/CE3VSWWL5YUNOULAOPFW67ZAUD/action/replication_record"}},"created_at":"2026-05-18T00:42:57.761714+00:00","updated_at":"2026-05-18T00:42:57.761714+00:00"}