{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:JCMAK52OH5UH27EBYMIWSTKMLI","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"3750229e27252977b76e026b8665d2dd8c68cfb8183bb3d3e3e0555156546982","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-03T10:48:31Z","title_canon_sha256":"0f9637bfccedc25a50ef0e64a552fde7a1b9d694d527cbde936853c8a269e68d"},"schema_version":"1.0","source":{"id":"1104.0374","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0374","created_at":"2026-05-18T04:17:04Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0374v2","created_at":"2026-05-18T04:17:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0374","created_at":"2026-05-18T04:17:04Z"},{"alias_kind":"pith_short_12","alias_value":"JCMAK52OH5UH","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"JCMAK52OH5UH27EB","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"JCMAK52O","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:ef5c0b7036e87e994d3460291e20d2d95ea990202ae0e9d19dd671ef4f5b364d","target":"graph","created_at":"2026-05-18T04:17:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We have constructed a theoretical framework of the biexciton-resonant hyperparametric scattering for the pursuit of high-power and high-quality generation of entangled photon pairs. Our framework is applicable to nano-to-bulk crossover regime where the center-of-mass motion of excitons and biexcitons is confined. Material surroundings and the polarization correlation of generated photons can be considered. We have analyzed the entangled-photon generation from CuCl film, by which ultraviolet entangled-photon pairs are generated, and from dielectric microcavity embedding a CuCl layer. We have re","authors_text":"Hajime Ishihara, Motoaki Bamba","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-03T10:48:31Z","title":"Theoretical framework of entangled-photon generation from biexcitons in nano-to-bulk crossover regime with planar geometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0374","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a82f498985fdae3fee8e3bc839043afbb6dfe0bfafa2f4ccc585c667eafef62e","target":"record","created_at":"2026-05-18T04:17:04Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"3750229e27252977b76e026b8665d2dd8c68cfb8183bb3d3e3e0555156546982","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-04-03T10:48:31Z","title_canon_sha256":"0f9637bfccedc25a50ef0e64a552fde7a1b9d694d527cbde936853c8a269e68d"},"schema_version":"1.0","source":{"id":"1104.0374","kind":"arxiv","version":2}},"canonical_sha256":"489805774e3f687d7c81c311694d4c5a01cbd11be7ed70ab1423a2d39946f096","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"489805774e3f687d7c81c311694d4c5a01cbd11be7ed70ab1423a2d39946f096","first_computed_at":"2026-05-18T04:17:04.274672Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:17:04.274672Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0PiL9Yv09jbemGOuKWT4+EkUndyMc0ukdQb4r0cRwL63G3bKCb31LfJg+KbMMS7oEZGLEz8ZcvUK21DWTL2SAg==","signature_status":"signed_v1","signed_at":"2026-05-18T04:17:04.275271Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.0374","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a82f498985fdae3fee8e3bc839043afbb6dfe0bfafa2f4ccc585c667eafef62e","sha256:ef5c0b7036e87e994d3460291e20d2d95ea990202ae0e9d19dd671ef4f5b364d"],"state_sha256":"ae116cea2b4f5c8a41982343fc72948cbfdbdfb2b44b59fd371f60142611ec6d"}