{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:FGJUOGNKHAM7TD4MKSUSWRHAIO","short_pith_number":"pith:FGJUOGNK","schema_version":"1.0","canonical_sha256":"29934719aa3819f98f8c54a92b44e043a1b14cae4c3cfe1e621d327e2622ad33","source":{"kind":"arxiv","id":"1905.11819","version":2},"attestation_state":"computed","paper":{"title":"Implementation of generalized measurements on a qudit via quantum walks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Haoyu Zhang, Huangjun Zhu, Zihao Li","submitted_at":"2019-05-28T13:54:44Z","abstract_excerpt":"Quantum measurements play a fundamental role in quantum mechanics and quantum information processing, but it is not easy to implement generalized measurements, the most powerful measurements allowed by quantum mechanics. Here we propose a simple recipe for implementing generalized measurements on a qudit via quantum walks. With this recipe, any discrete quantum measurement can be implemented via a one-dimensional discrete quantum walk; the number of steps is only two times the number of measurement outcomes. As an illustration, we present a unified solution for implementing arbitrary symmetric"},"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":"1905.11819","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-05-28T13:54:44Z","cross_cats_sorted":[],"title_canon_sha256":"3504cd70fa8db87dc9e23efebd998de2e3acc8a981b0a54482d8178faed03997","abstract_canon_sha256":"21fc5f859be3ba6111dfa2c7a53020a8540b86f86aa76d34e5b0276a57d1e2b4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:57.817234Z","signature_b64":"nzNEtViAYqMIgAjv2Yo47Drz+MIYebE2i7MFD9Y0S3O00qtkDQX208jnK2gxD7SsrlH5d9Unq45nyGUR85NbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29934719aa3819f98f8c54a92b44e043a1b14cae4c3cfe1e621d327e2622ad33","last_reissued_at":"2026-05-17T23:41:57.816561Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:57.816561Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Implementation of generalized measurements on a qudit via quantum walks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Haoyu Zhang, Huangjun Zhu, Zihao Li","submitted_at":"2019-05-28T13:54:44Z","abstract_excerpt":"Quantum measurements play a fundamental role in quantum mechanics and quantum information processing, but it is not easy to implement generalized measurements, the most powerful measurements allowed by quantum mechanics. Here we propose a simple recipe for implementing generalized measurements on a qudit via quantum walks. With this recipe, any discrete quantum measurement can be implemented via a one-dimensional discrete quantum walk; the number of steps is only two times the number of measurement outcomes. As an illustration, we present a unified solution for implementing arbitrary symmetric"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.11819","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":"1905.11819","created_at":"2026-05-17T23:41:57.816671+00:00"},{"alias_kind":"arxiv_version","alias_value":"1905.11819v2","created_at":"2026-05-17T23:41:57.816671+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.11819","created_at":"2026-05-17T23:41:57.816671+00:00"},{"alias_kind":"pith_short_12","alias_value":"FGJUOGNKHAM7","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_16","alias_value":"FGJUOGNKHAM7TD4M","created_at":"2026-05-18T12:33:15.570797+00:00"},{"alias_kind":"pith_short_8","alias_value":"FGJUOGNK","created_at":"2026-05-18T12:33:15.570797+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/FGJUOGNKHAM7TD4MKSUSWRHAIO","json":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO.json","graph_json":"https://pith.science/api/pith-number/FGJUOGNKHAM7TD4MKSUSWRHAIO/graph.json","events_json":"https://pith.science/api/pith-number/FGJUOGNKHAM7TD4MKSUSWRHAIO/events.json","paper":"https://pith.science/paper/FGJUOGNK"},"agent_actions":{"view_html":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO","download_json":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO.json","view_paper":"https://pith.science/paper/FGJUOGNK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1905.11819&json=true","fetch_graph":"https://pith.science/api/pith-number/FGJUOGNKHAM7TD4MKSUSWRHAIO/graph.json","fetch_events":"https://pith.science/api/pith-number/FGJUOGNKHAM7TD4MKSUSWRHAIO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO/action/storage_attestation","attest_author":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO/action/author_attestation","sign_citation":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO/action/citation_signature","submit_replication":"https://pith.science/pith/FGJUOGNKHAM7TD4MKSUSWRHAIO/action/replication_record"}},"created_at":"2026-05-17T23:41:57.816671+00:00","updated_at":"2026-05-17T23:41:57.816671+00:00"}