{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:WVXLU54T6KMMLDK3AHV3XW2OK2","short_pith_number":"pith:WVXLU54T","schema_version":"1.0","canonical_sha256":"b56eba7793f298c58d5b01ebbbdb4e569397f60da3cd6479f1d71fcfd1f9abf2","source":{"kind":"arxiv","id":"2409.03341","version":1},"attestation_state":"computed","paper":{"title":"Direct Readout of Nitrogen-Vacancy Hybrid-Spin Quantum Register in Diamond by Photon Arrival Time Analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dawei Lu, Jingyan He, Nanyang Xu, Runchuan Ye, Xiangyu Wang, Yu Tian, Zhiyi Hu","submitted_at":"2024-09-05T08:38:10Z","abstract_excerpt":"Quantum state readout plays a pivotal role in quantum technologies, spanning applications in sensing, computation, and secure communication. In this work, we introduce a new approach for efficiently reading populations of hybrid-spin states in the nitrogen-vacancy center of diamond using a single laser pulse, which utilizes the excited state level anti-crossing mechanism at around 500 Gs. Reading spin state populations through this approach achieves the same outcome as traditional quantum state diagonal tomography but significantly reduces the experimental time by an order of magnitude while m"},"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":"2409.03341","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2024-09-05T08:38:10Z","cross_cats_sorted":[],"title_canon_sha256":"23e0acecd2294b0b1d6a275625c5bb3bc34065521bb2e45ad3c326587bdc23a9","abstract_canon_sha256":"d52a511ee7b9009ce897798d3bf3663e1fca8eb80ba55a91369df032c3b18bba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:03:29.918336Z","signature_b64":"cAoP9UCqQrsR3luT2meUtf4G1IAUdin/ROFiCjMBjSe8lJhG+TwZQ+odD9VfUymOvUC8G16yJJtNC/hA2fmXAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b56eba7793f298c58d5b01ebbbdb4e569397f60da3cd6479f1d71fcfd1f9abf2","last_reissued_at":"2026-07-05T09:03:29.917849Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:03:29.917849Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Direct Readout of Nitrogen-Vacancy Hybrid-Spin Quantum Register in Diamond by Photon Arrival Time Analysis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Dawei Lu, Jingyan He, Nanyang Xu, Runchuan Ye, Xiangyu Wang, Yu Tian, Zhiyi Hu","submitted_at":"2024-09-05T08:38:10Z","abstract_excerpt":"Quantum state readout plays a pivotal role in quantum technologies, spanning applications in sensing, computation, and secure communication. In this work, we introduce a new approach for efficiently reading populations of hybrid-spin states in the nitrogen-vacancy center of diamond using a single laser pulse, which utilizes the excited state level anti-crossing mechanism at around 500 Gs. Reading spin state populations through this approach achieves the same outcome as traditional quantum state diagonal tomography but significantly reduces the experimental time by an order of magnitude while m"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.03341","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2409.03341/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2409.03341","created_at":"2026-07-05T09:03:29.917907+00:00"},{"alias_kind":"arxiv_version","alias_value":"2409.03341v1","created_at":"2026-07-05T09:03:29.917907+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.03341","created_at":"2026-07-05T09:03:29.917907+00:00"},{"alias_kind":"pith_short_12","alias_value":"WVXLU54T6KMM","created_at":"2026-07-05T09:03:29.917907+00:00"},{"alias_kind":"pith_short_16","alias_value":"WVXLU54T6KMMLDK3","created_at":"2026-07-05T09:03:29.917907+00:00"},{"alias_kind":"pith_short_8","alias_value":"WVXLU54T","created_at":"2026-07-05T09:03:29.917907+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/WVXLU54T6KMMLDK3AHV3XW2OK2","json":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2.json","graph_json":"https://pith.science/api/pith-number/WVXLU54T6KMMLDK3AHV3XW2OK2/graph.json","events_json":"https://pith.science/api/pith-number/WVXLU54T6KMMLDK3AHV3XW2OK2/events.json","paper":"https://pith.science/paper/WVXLU54T"},"agent_actions":{"view_html":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2","download_json":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2.json","view_paper":"https://pith.science/paper/WVXLU54T","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2409.03341&json=true","fetch_graph":"https://pith.science/api/pith-number/WVXLU54T6KMMLDK3AHV3XW2OK2/graph.json","fetch_events":"https://pith.science/api/pith-number/WVXLU54T6KMMLDK3AHV3XW2OK2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2/action/storage_attestation","attest_author":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2/action/author_attestation","sign_citation":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2/action/citation_signature","submit_replication":"https://pith.science/pith/WVXLU54T6KMMLDK3AHV3XW2OK2/action/replication_record"}},"created_at":"2026-07-05T09:03:29.917907+00:00","updated_at":"2026-07-05T09:03:29.917907+00:00"}