{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:PKMI4SFH57DSR2SBU72OJ4J4PF","short_pith_number":"pith:PKMI4SFH","schema_version":"1.0","canonical_sha256":"7a988e48a7efc728ea41a7f4e4f13c795f38b4519420b41171f770a7286123ef","source":{"kind":"arxiv","id":"1204.2107","version":1},"attestation_state":"computed","paper":{"title":"Polarization entanglement generation at 1.5 um based on walk-off effect due to fiber birefringence","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Jiangde Peng, Pengxiang Wang, Qiang Zhou, Wei Zhang, Yidong Huang","submitted_at":"2012-04-10T11:27:29Z","abstract_excerpt":"In this Letter, a linear scheme to generate polarization entanglement at 1.5 um based on commercial polarization maintained dispersion shifted fiber (PM-DSF) is proposed. The birefringent walk-off effect of the pulsed pump light in the PM-DSF provides an effective way to suppress the vector scattering processes of spontaneous four wave mixing. A 90 degree offset of fiber polarization axes is introduced at the midpoint of the fiber to realize the quantum superposition of the two correlated photon states generated by the two scalar processes on different fiber polarization axes, leading to polar"},"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":"1204.2107","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"quant-ph","submitted_at":"2012-04-10T11:27:29Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"e767fb93154df5e866d9325d1f8fb3ab4e1f7054b7fecdef15ee0339db439b69","abstract_canon_sha256":"ebfd886a66e2539641588de0ff7d2b1746687031509c7d03664ae0359e8de5fe"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:13.256722Z","signature_b64":"3o8HWZ0GQKtcx9kmirxGmwiKCk7FaFxKWego/SsbJErLw+799QdFKOoB8nM/V1xYRXHwH/SXZnvN+vIqWhY6BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a988e48a7efc728ea41a7f4e4f13c795f38b4519420b41171f770a7286123ef","last_reissued_at":"2026-05-18T03:58:13.255926Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:13.255926Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Polarization entanglement generation at 1.5 um based on walk-off effect due to fiber birefringence","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Jiangde Peng, Pengxiang Wang, Qiang Zhou, Wei Zhang, Yidong Huang","submitted_at":"2012-04-10T11:27:29Z","abstract_excerpt":"In this Letter, a linear scheme to generate polarization entanglement at 1.5 um based on commercial polarization maintained dispersion shifted fiber (PM-DSF) is proposed. The birefringent walk-off effect of the pulsed pump light in the PM-DSF provides an effective way to suppress the vector scattering processes of spontaneous four wave mixing. A 90 degree offset of fiber polarization axes is introduced at the midpoint of the fiber to realize the quantum superposition of the two correlated photon states generated by the two scalar processes on different fiber polarization axes, leading to polar"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.2107","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":""},"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":"1204.2107","created_at":"2026-05-18T03:58:13.256057+00:00"},{"alias_kind":"arxiv_version","alias_value":"1204.2107v1","created_at":"2026-05-18T03:58:13.256057+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.2107","created_at":"2026-05-18T03:58:13.256057+00:00"},{"alias_kind":"pith_short_12","alias_value":"PKMI4SFH57DS","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_16","alias_value":"PKMI4SFH57DSR2SB","created_at":"2026-05-18T12:27:18.751474+00:00"},{"alias_kind":"pith_short_8","alias_value":"PKMI4SFH","created_at":"2026-05-18T12:27:18.751474+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/PKMI4SFH57DSR2SBU72OJ4J4PF","json":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF.json","graph_json":"https://pith.science/api/pith-number/PKMI4SFH57DSR2SBU72OJ4J4PF/graph.json","events_json":"https://pith.science/api/pith-number/PKMI4SFH57DSR2SBU72OJ4J4PF/events.json","paper":"https://pith.science/paper/PKMI4SFH"},"agent_actions":{"view_html":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF","download_json":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF.json","view_paper":"https://pith.science/paper/PKMI4SFH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1204.2107&json=true","fetch_graph":"https://pith.science/api/pith-number/PKMI4SFH57DSR2SBU72OJ4J4PF/graph.json","fetch_events":"https://pith.science/api/pith-number/PKMI4SFH57DSR2SBU72OJ4J4PF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF/action/storage_attestation","attest_author":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF/action/author_attestation","sign_citation":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF/action/citation_signature","submit_replication":"https://pith.science/pith/PKMI4SFH57DSR2SBU72OJ4J4PF/action/replication_record"}},"created_at":"2026-05-18T03:58:13.256057+00:00","updated_at":"2026-05-18T03:58:13.256057+00:00"}