{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:YHX2PUNBTQ7KZAVQR772IUM3KC","short_pith_number":"pith:YHX2PUNB","schema_version":"1.0","canonical_sha256":"c1efa7d1a19c3eac82b08fffa4519b509bc147ae377f4329571253781bf7a8f8","source":{"kind":"arxiv","id":"1212.0008","version":1},"attestation_state":"computed","paper":{"title":"Down-conversion source of positively spectrally correlated and decorrelated photon pairs at telecom wavelength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Piotr Kolenderski, Thomas Jennewein, Thomas Lutz","submitted_at":"2012-11-30T21:00:05Z","abstract_excerpt":"The frequency correlation (or decorrelation) of photon pairs is of great importance in long-range quantum communications and photonic quantum computing. We experimentally characterize a spontaneous parametric down conversion (SPDC) source, based on a Beta-Barium Borate (BBO) crystal cut for type-II phase matching at 1550 nm which emits photons with the positive or no spectral correlations. Our system employs a carefully designed detection method exploiting two InGaAs detectors."},"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":"1212.0008","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-11-30T21:00:05Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"6375679b266cdede3dce93a728d237bed10904a868a1db1282f238b66d618c61","abstract_canon_sha256":"4b3c459f4445f7078e19cce3320244c0f5379f1093d4ae08c3634bf98a79d621"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:32:44.522307Z","signature_b64":"DIVR23mFXM5WOQEewu6L7UREnZDg4/2HTZ30V3s+fTwWZ1o8+B6ScZSmrhpAzhixP7PVbYJesnK0FtWlMkbQCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c1efa7d1a19c3eac82b08fffa4519b509bc147ae377f4329571253781bf7a8f8","last_reissued_at":"2026-05-18T03:32:44.521788Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:32:44.521788Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Down-conversion source of positively spectrally correlated and decorrelated photon pairs at telecom wavelength","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Piotr Kolenderski, Thomas Jennewein, Thomas Lutz","submitted_at":"2012-11-30T21:00:05Z","abstract_excerpt":"The frequency correlation (or decorrelation) of photon pairs is of great importance in long-range quantum communications and photonic quantum computing. We experimentally characterize a spontaneous parametric down conversion (SPDC) source, based on a Beta-Barium Borate (BBO) crystal cut for type-II phase matching at 1550 nm which emits photons with the positive or no spectral correlations. Our system employs a carefully designed detection method exploiting two InGaAs detectors."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.0008","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":"1212.0008","created_at":"2026-05-18T03:32:44.521863+00:00"},{"alias_kind":"arxiv_version","alias_value":"1212.0008v1","created_at":"2026-05-18T03:32:44.521863+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.0008","created_at":"2026-05-18T03:32:44.521863+00:00"},{"alias_kind":"pith_short_12","alias_value":"YHX2PUNBTQ7K","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_16","alias_value":"YHX2PUNBTQ7KZAVQ","created_at":"2026-05-18T12:27:27.928770+00:00"},{"alias_kind":"pith_short_8","alias_value":"YHX2PUNB","created_at":"2026-05-18T12:27:27.928770+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/YHX2PUNBTQ7KZAVQR772IUM3KC","json":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC.json","graph_json":"https://pith.science/api/pith-number/YHX2PUNBTQ7KZAVQR772IUM3KC/graph.json","events_json":"https://pith.science/api/pith-number/YHX2PUNBTQ7KZAVQR772IUM3KC/events.json","paper":"https://pith.science/paper/YHX2PUNB"},"agent_actions":{"view_html":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC","download_json":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC.json","view_paper":"https://pith.science/paper/YHX2PUNB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1212.0008&json=true","fetch_graph":"https://pith.science/api/pith-number/YHX2PUNBTQ7KZAVQR772IUM3KC/graph.json","fetch_events":"https://pith.science/api/pith-number/YHX2PUNBTQ7KZAVQR772IUM3KC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC/action/storage_attestation","attest_author":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC/action/author_attestation","sign_citation":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC/action/citation_signature","submit_replication":"https://pith.science/pith/YHX2PUNBTQ7KZAVQR772IUM3KC/action/replication_record"}},"created_at":"2026-05-18T03:32:44.521863+00:00","updated_at":"2026-05-18T03:32:44.521863+00:00"}