{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:KQRT4SY4Z5IS2NP6T4GJ7BCZEY","short_pith_number":"pith:KQRT4SY4","schema_version":"1.0","canonical_sha256":"54233e4b1ccf512d35fe9f0c9f8459261bf80ef76bb5844e571b648e23d62e09","source":{"kind":"arxiv","id":"2103.05323","version":1},"attestation_state":"computed","paper":{"title":"Highly efficient polarization-entangled photon-pair generation in lithium niobate waveguides based on bound states in the continuum","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Guang-Yuan Chen, Xiang-Dong Zhang, Yu-hui Chen, Zhi-Xin Li","submitted_at":"2021-03-09T10:04:15Z","abstract_excerpt":"Integrated optics provides a platform for the experimental implementation of highly complex and compact circuits for practical applications as well as for advances in the fundamental science of quantum optics. The lithium niobate (LN) waveguide is an important candidate for the construction of integrated optical circuits. Based on the bound state in the continuum (BIC) in a LN waveguide, we propose an efficient way to produce polarization-entangled photon pairs. The implementation of this method is simple and does not require the polarization process needed for periodically poled LN. The gener"},"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":"2103.05323","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2021-03-09T10:04:15Z","cross_cats_sorted":[],"title_canon_sha256":"173749b9ef0491e5520e10aa2aab6fe1ef7bdeca5aabf3bb3263199a859212f1","abstract_canon_sha256":"787a738743952347a2baeb115b5fd5f53b04b27976ac39849353be5c8bfe5759"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:33:30.559391Z","signature_b64":"UTSaZObW6lHSd3EZokonVDRuuhX2lltKQoqzsqsz6tES6raNwNGNGR4QFS80TJa7nUc7pcYv5mxfEFQg1d4EDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54233e4b1ccf512d35fe9f0c9f8459261bf80ef76bb5844e571b648e23d62e09","last_reissued_at":"2026-07-05T02:33:30.559010Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:33:30.559010Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Highly efficient polarization-entangled photon-pair generation in lithium niobate waveguides based on bound states in the continuum","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Guang-Yuan Chen, Xiang-Dong Zhang, Yu-hui Chen, Zhi-Xin Li","submitted_at":"2021-03-09T10:04:15Z","abstract_excerpt":"Integrated optics provides a platform for the experimental implementation of highly complex and compact circuits for practical applications as well as for advances in the fundamental science of quantum optics. The lithium niobate (LN) waveguide is an important candidate for the construction of integrated optical circuits. Based on the bound state in the continuum (BIC) in a LN waveguide, we propose an efficient way to produce polarization-entangled photon pairs. The implementation of this method is simple and does not require the polarization process needed for periodically poled LN. The gener"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.05323","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/2103.05323/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":"2103.05323","created_at":"2026-07-05T02:33:30.559069+00:00"},{"alias_kind":"arxiv_version","alias_value":"2103.05323v1","created_at":"2026-07-05T02:33:30.559069+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.05323","created_at":"2026-07-05T02:33:30.559069+00:00"},{"alias_kind":"pith_short_12","alias_value":"KQRT4SY4Z5IS","created_at":"2026-07-05T02:33:30.559069+00:00"},{"alias_kind":"pith_short_16","alias_value":"KQRT4SY4Z5IS2NP6","created_at":"2026-07-05T02:33:30.559069+00:00"},{"alias_kind":"pith_short_8","alias_value":"KQRT4SY4","created_at":"2026-07-05T02:33:30.559069+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/KQRT4SY4Z5IS2NP6T4GJ7BCZEY","json":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY.json","graph_json":"https://pith.science/api/pith-number/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/graph.json","events_json":"https://pith.science/api/pith-number/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/events.json","paper":"https://pith.science/paper/KQRT4SY4"},"agent_actions":{"view_html":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY","download_json":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY.json","view_paper":"https://pith.science/paper/KQRT4SY4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2103.05323&json=true","fetch_graph":"https://pith.science/api/pith-number/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/graph.json","fetch_events":"https://pith.science/api/pith-number/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/action/storage_attestation","attest_author":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/action/author_attestation","sign_citation":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/action/citation_signature","submit_replication":"https://pith.science/pith/KQRT4SY4Z5IS2NP6T4GJ7BCZEY/action/replication_record"}},"created_at":"2026-07-05T02:33:30.559069+00:00","updated_at":"2026-07-05T02:33:30.559069+00:00"}